0.9.8

* delay initializing the global icons, so we don't generate them for each hex file

* Moving the strings to flash

.gitignore

@@ -15,7 +15,7 @@ clients/win10/app/bld
 clients/win10/*.opendb
 clients/**/bin/**
 clients/**/obj/**
-clients/electron/projects
+electron-out
 hexcache
 
 *.user
@@ -25,9 +25,5 @@ hexcache
 *.db
 *.suo
 *.log
-
-.DS_Store
-.idea
-*.iml
 .vscode/.BROWSE.VC.DB-shm
 .vscode/.BROWSE.VC.DB-wal

.travis.yml

@@ -3,11 +3,16 @@ node_js:
   - "5.7.0"
 script:
   - "node node_modules/pxt-core/built/pxt.js travis"  
+  - "(cd libs/lang-test0; node ../../node_modules/pxt-core/built/pxt.js run)"
+  - "(cd libs/lang-test1; node ../../node_modules/pxt-core/built/pxt.js run)"
+  - "(cd libs/lang-test0; node ../../node_modules/pxt-core/built/pxt.js test)"
+  - "(cd libs/lang-test1; node ../../node_modules/pxt-core/built/pxt.js test)"
   - "node node_modules/pxt-core/built/pxt.js testdir tests"
+  - "(cd libs/hello; node ../../node_modules/pxt-core/built/pxt.js testconv https://az851932.vo.msecnd.net/files/td-converter-tests-v1.json)"
 sudo: false
 notifications:
   email:
-    - kindscript@microsoft.com
+    - touchdevelop-build@microsoft.com
 cache:
   directories:
     - node_modules

.vscode/settings.json

@@ -1,6 +1,6 @@
 // Place your settings in this file to overwrite default and user settings.
 {
-    "file.autoSave": "afterDelay",   
+    "files.autoSave": "afterDelay",
     "files.watcherExclude": {
         "**/.git/objects/**": true,
         "**/built/**": true,

README.md

@@ -1,18 +1,15 @@
-# Calliope target for Microsoft MakeCode
+# micro:bit target for PXT
 
-This target is hosted at https://makecode.calliope.cc.
+This target allow to program a [BBC micro:bit](https://www.microbit.co.uk/) using 
+PXT ([Microsoft Programming Experience Toolkit](https://github.com/Microsoft/pxt)).
 
-## Hosted editor and build
+* [Try it live](https://pxt.microbit.org)
 
-Jenkins build: https://ci2.dot.net/job/Private/job/pxt_project_teal/job/master/
+[![Build Status](https://travis-ci.org/Microsoft/pxt-microbit.svg?branch=master)](https://travis-ci.org/Microsoft/pxt-microbit)
 
+## Issue tracking
 
-### BUILD COMMENTS
-
-- build libs/core/dal.d.ts new requires some meddling, as the `#define` parser does not parse `#ifdef` and thus
-has some conflicts with double defines constants
-
-![](http://calliope.cc/content/1-ueber-mini/mini_board.png)
+All issue tracking for this repo happens at https://github.com/Microsoft/pxt, see you there!
 
 ## Local server
 
@@ -25,8 +22,8 @@ The following commands are a 1-time setup after synching the repo on your machin
 * See requirements for [pxt](https://github.com/Microsoft/pxt)
 * [clone this repo](https://help.github.com/articles/cloning-a-repository/) to your computer and go in the project folder
 ```
-git clone https://github.com/microsoft/pxt-calliope
-cd pxt-calliope
+git clone https://github.com/microsoft/pxt-microbit
+cd pxt-microbit
 ```
 * install the PXT command line (add ``sudo`` for Mac/Linux shells).
 ```
@@ -39,15 +36,14 @@ npm install
 
 ### Running
 
-Run this command to open a local web server (add ``sudo`` for Mac/Linux shells).
+Run this command to open a local web server (add ``sudo`` for Mac/Linux shells)
 ```
 pxt serve
 ```
 If the local server opens in the wrong browser, make sure to copy the URL containing the local token. 
 Otherwise, the editor will not be able to load the projects.
 
-If you need modify the `.cpp` files, turn on yotta compilation with the ``-yt`` flag (add ``sudo`` for Mac/Linux shells). On Windows, you must be running
-from the ``Run Yotta`` command prompt.
+If you need modify the `.cpp` files, turn on yotta compilation with the ``-yt`` flag (add ``sudo`` for Mac/Linux shells):
 ```
 pxt serve -yt
 ```
@@ -69,6 +65,7 @@ The build automatically runs the following:
 * `pxt run` in `libs/lang-test*` - this will run the test in command line runner; 
   there is a number of asserts in both of these
 * `pxt testdir` in `tests` - this makes sure all the files compile and generates .hex files
+* run the TD->TS converter on a number of test scripts from `microbit.co.uk` and make sure the results compile
 
 To test something on the device:
 

THIRD-PARTY-NOTICES.txt

@@ -0,0 +1,43 @@
+/*!----------------- PXT ThirdPartyNotices -------------------------------------------------------
+
+PXT uses third party material from the projects listed below.
+The original copyright notice and the license under which Microsoft
+received such third party material are set forth below. Microsoft
+reserves all other rights not expressly granted, whether by
+implication, estoppel or otherwise.
+
+In the event that we accidentally failed to list a required notice, please
+bring it to our attention. Post an issue or email us:
+
+           abchatra@microsoft.com
+
+---------------------------------------------
+Third Party Code Components
+---------------------------------------------
+
+Some code derived (as noted) from
+
+https://github.com/bbcmicrobit/micropython
+
+The MIT License (MIT)
+
+Copyright (c) 2013-2016 The MicroPython-on-micro:bit Developers, as listed
+in the accompanying AUTHORS file
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

clients/chrome/README.md

@@ -1,5 +1,5 @@
 # microbit-chrome
-Prototype chrome addon that exposes the micro:bit's serial output to webpages. 
+Prototype chrome addon that exposes the @boardname@'s serial output to webpages. 
 * watch the [demo video](https://vimeo.com/146207766)
 
 # Installation

clients/electron/.gitignore

@@ -1,2 +0,0 @@
-node_modules
-projects

clients/electron/README.md

@@ -1,5 +0,0 @@
-# PXT micro:bit Electron app
-
-A very basic wrapper around the web app. To install, copy the contents of this
-directory to somewhere outside the main `pxt-microbit` repository. Then run `npm
-install && npm start`.

clients/electron/index.html

@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="UTF-8">
-    <title>code the micro:bit</title>
-  </head>
-  <body>
-    <webview id="webview" style="position:absolute; left:0; top:0; right:0; bottom:0"/>
-    <script>
-      const webview = document.getElementById("webview")
-      const url = `http://localhost:3232/${window.location.hash}`
-      webview.src = url
-    </script>
-  </body>
-</html>

clients/electron/main.js

@@ -1,39 +0,0 @@
-const {app, BrowserWindow, Menu} = require('electron')
-const pxt = require('pxt-core')
-const path = require('path')
-
-let win
-
-const cliPath = path.join(process.cwd(), "node_modules/pxt-microbit") 
-
-function startServerAndCreateWindow() {
-  pxt.mainCli(cliPath, ["serve", "-no-browser"])
-  createWindow()
-}
-
-function createWindow () {
-  win = new BrowserWindow({
-    width: 800,
-    height: 600,
-    title: "code the micro:bit"
-  })
-  Menu.setApplicationMenu(null)
-  win.loadURL(`file://${__dirname}/index.html#local_token=${pxt.globalConfig.localToken}`)
-  win.on('closed', () => {
-    win = null
-  })
-}
-
-app.on('ready', startServerAndCreateWindow)
-
-app.on('window-all-closed', () => {
-  if (process.platform !== 'darwin') {
-    app.quit()
-  }
-})
-
-app.on('activate', () => {
-  if (win === null) {
-    createWindow()
-  }
-})

clients/electron/package.json

@@ -1,14 +0,0 @@
-{
-  "name"    : "code-the-microbit",
-  "version" : "1.0.0",
-  "description": "Blocks / Javascript editor",
-  "author": "Microsoft",
-  "main"    : "main.js",
-  "scripts": {
-      "start": "node_modules/.bin/electron ."
-  },
-  "devDependencies": {
-      "electron": "*",
-      "pxt-microbit": "*"
-  }
-}

cmds/pxtrequire.ts

@@ -0,0 +1,7 @@
+/// <reference path="../node_modules/pxt-core/typings/globals/node/index.d.ts"/>
+/// <reference path="../node_modules/pxt-core/built/pxtlib.d.ts" />
+
+import * as path from "path";
+export let pxtCore = require("pxt-core");
+// require.resolve() gives path to [pxt dir]/built/pxt.js, so move up twice to get pxt root dir
+export let pxtCoreDir = path.resolve(require.resolve("pxt-core"), "..", "..");

cmds/tsconfig.json

@@ -0,0 +1,13 @@
+{
+    "compilerOptions": {
+        "target": "es5",
+        "noImplicitAny": true,
+        "noImplicitReturns": true,
+        "declaration": true,
+        "outDir": "../built",
+        "module": "commonjs",
+        "rootDir": ".",
+        "newLine": "LF",
+        "sourceMap": false
+    }
+}

docs/about.md

@@ -2,4 +2,90 @@
 
 # About
 
-Read more at https://calliope.cc .
+### @description A Blocks / Javascript code editor for the micro:bit, a pocket-size computer with 5x5 display, sensors and Bluetooth.
+
+The [BBC micro:bit](https://www.microbit.co.uk) is a [pocket-size computer](/device) with a 5x5 display of 25 LEDs, Bluetooth and sensors that can be programmed by anyone.
+The BBC micro:bit was made possible by many [partners](https://www.microbit.co.uk/partners).
+
+The micro:bit provides an easy and fun introduction to programming and making – switch on, program it to do something fun – wear it, customize it.
+Just like Arduino, the micro:bit can be connected to and interact with sensors, displays, and other devices. 
+
+* [Read the docs](/docs)
+
+## [Hardware: The Device](/device)
+
+The BBC micro:bit is packaged with sensors, radio and other goodies. Learn about the [hardware components](/device) of the micro:bit to make the most of it!
+
+## Programming: [Blocks](/blocks) or [JavaScript](/javascript)
+
+You can program the micro:bit using [Blocks](/blocks) or [JavaScript](/javascript) in your web browser via the [micro:bit APIs](/reference):
+
+```block
+input.onButtonPressed(Button.A, () => {
+    basic.showString("Hi!");
+})
+```
+```typescript
+input.onButtonPressed(Button.A, () => {
+    basic.showString("Hi!");
+})
+```
+
+The editor work in [most modern browsers](/browsers), work [offline](/offline) once loaded and do not require any installation. 
+
+## [Compile and Flash: Your Program!](/device/usb)
+
+When you have your code ready, you connect your micro:bit to a computer via a USB cable, so it appears as a mounted drive (named MICROBIT). 
+
+Compilation to ARM thumb machine code from [Blocks](/blocks) or [JavaScript](/javascript) happens in the browser. You save the ARM binary 
+program to a file, which you then copy to the micro:bit drive, which flashes the micro:bit device with the new program.
+
+## Simulator: Test Your Code
+
+You can run your code using the micro:bit simulator, all within the confines of a web browser. 
+The simulator has support for the LED screen, buttons, as well as compass, accelerometer, and digital I/O pins.
+
+```sim
+basic.forever(() => {
+  basic.showString("Hi!");
+})
+input.onButtonPressed(Button.A, () => {
+    led.stopAnimation();
+    basic.showLeds(`
+. . . . .
+. # . # .
+. . . . .
+# . . . #
+. # # # .`);
+});
+input.onButtonPressed(Button.B, () => {
+    led.stopAnimation();
+    basic.showLeds(`
+. # . # .
+# . # . #
+# . . . #
+. # . # .
+. . # . .`);
+});
+```
+
+## C++ Runtime
+
+The [C++ micro:bit runtime](http://lancaster-university.github.io/microbit-docs/), created at [Lancaster University](http://www.lancaster.ac.uk/), provides access to the hardware functions of the micro:bit, 
+as well as a set of helper functions (such as displaying a number/image/string on the LED screen). 
+
+The [micro:bit library](/reference) mirrors the functions of the C++ library. 
+When code is compiled to ARM machine code, the calls to JavaScript micro:bit functions are replaced with calls to the corresponding C++ functions.
+
+## [Command Line Tools](/cli)
+
+Looking to use pxt.microbit.org in your favorite editor? Install the [command line tools](/cli) and get rolling!
+
+## [Packages](/packages)
+
+Create, edit and distribute your own blocks and JavaScript using [packages](/packages). Packages are hosted on GitHub and may be written
+using C++, JavaScript and/or ARM thumb.
+
+## [Open Source](/open-source)
+
+The code for the micro:bit is [open source](/open-source) on GitHub. Contributors are welcome!

docs/blocks.md

@@ -1,6 +1,10 @@
 # Blocks language
 
-### @description Langugage constructs for the Block editor.
+### @description Language constructs for the Block editor.
+
+Blocks snap into each other to define the program that your @boardname@ will run.
+Blocks can be event (buttons, shake, ...) or need to be snapped into an event to run. 
+The [on-start](/blocks/on-start) event runs first.
 
 ```namespaces
 for (let i = 0;i<5;++i) {}
@@ -11,4 +15,4 @@ Math.random(5);
 
 ## See Also
 
-[logic](/blocks/logic), [loops](/blocks/loops), [math](/blocks/math), [variables](/blocks/variables)
+[logic](/blocks/logic), [loops](/blocks/loops), [math](/blocks/math), [variables](/blocks/variables), [on-start](/blocks/on-start)

docs/blocks/logic/boolean.md

@@ -86,12 +86,14 @@ if (led.point(1,1) && led.point(2,2)) {
 When you compare two Numbers, you get a Boolean value, such as the comparison `x < 5` in the code below:
 
 ```blocks
-let x = Math.random(5)
-if(x < 5) {
-   basic.showString("low");
-} else { 
-   basic.showString("high");
-} 
+input.onButtonPressed(Button.A, () => {
+    let x = Math.random(5)
+    if(x < 5) {
+    basic.showString("low");
+    } else { 
+    basic.showString("high");
+    }
+})
 ```
 
 See the documentation on [Numbers](/reference/types/number) for more information on comparing two Numbers. You can also [compare strings](/reference/types/string-functions) using the `equals` function.

docs/blocks/logic/if.md

@@ -14,13 +14,15 @@ Click on the dark blue gear icon (see above) to add an *else* or *if* to the cur
 
 ### Example: adjusting screen brightness
 
-```blocks
-if(input.lightLevel()<100){
-    led.setBrightness(255);
-}
-```
+If the [light level](/reference/input/light-level) is `< 100`, this code sets the brightness to `255` when the button A is pressed:
 
-If the [light level](/reference/input/light-level) is `< 100`, this code sets the brightness to `255`:
+```blocks
+input.onButtonPressed(Button.A, () => {
+    if(input.lightLevel()<100){
+        led.setBrightness(255);
+    }
+})
+```
 
 ### See also
 

docs/blocks/loops/for.md

@@ -4,14 +4,21 @@
  
 Run part of the program the number of times you say.
 
+```block
+for(let i = 0; i <= 4; ++i) {
+}
+```
+
 ### Example: Count to 4
 
 This program will show the numbers 0, 1, 2, 3, and 4 one after another on the LED screen.
 
 ```blocks
-for(let i = 0; i < 5; ++i) {
-basic.showNumber(i)
-}
+input.onButtonPressed(Button.A, () => {
+    for(let i = 0; i < 5; ++i) {
+        basic.showNumber(i)
+    }
+})
 ```
 
 ### See also

docs/blocks/loops/while.md

@@ -2,7 +2,7 @@
 
 Repeat code while a [Boolean](/blocks/logic/boolean) `condition` is true.
 
-```blocks
+```block
 while(true) {
 }
 ```
@@ -16,11 +16,13 @@ The condition is tested before any code runs. Which means that if the condition
 The following example uses a while loop to make a diagonal line on the LED screen (points `0, 0`, `1, 1`, `2, 2`, `3, 3`, `4, 4`).
 
 ```blocks
-let index = 4;
-while(index >= 0) {
-    led.plot(index, index);
-    index--;
-}
+input.onButtonPressed(Button.A, () => {
+    let index = 4;
+    while(index >= 0) {
+        led.plot(index, index);
+        index--;
+    }
+})
 ```
 
 ### See also

docs/blocks/on-start.md

@@ -0,0 +1,28 @@
+# On Start
+
+An event that runs when the program starts.
+
+The ``on start`` is a special event that runs when the program starts, before any other event. 
+Use this event to initialize your program.
+
+## Example
+
+In this example, ``on start`` sets a dimmer brightness on the screen and the button handler shows a string.
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    basic.showString("Hello!")
+})
+led.setBrightness(50)
+```
+
+## What about JavaScript?
+
+``on-start`` only exists in the block editor. In JavaScript, all code executes sequentially from the first line.
+
+## Hey, my events moved!
+
+When we transform the blocks into JavaScript, we always place all the event registrations (buttons, shake, ...) 
+before launching the ``on start`` code.
+
+If a block from ``on start`` pauses, other registered events will have the opportunity to run as well.

docs/cli.md

@@ -0,0 +1,17 @@
+# Command Line Interface
+
+```sim
+basic.forever(() => {
+    basic.showString("CLI<3")
+})
+```
+
+It is possible to use the tools from a command line interface (CLI). The PXT CLI allows to 
+* edit, compile or deploy JavaScript programs
+* can easily be integrated in most IDEs. It comes with built-in support for [Visual Studio Code](/code)!
+* run a local web server for the web editor
+* author packages using JavaScript and/or C++
+
+Using the CLI assumes that you have some experience with programming and will require to install tools on your machine as well.
+
+* **[LET'S GET STARTED](https://pxt.io/cli)**

docs/code.md

@@ -0,0 +1,16 @@
+# Visual Studio Code
+
+[Visual Studio Code](https://code.visualstudio.com) is a Free Open Source code editor that you can use to edit your programs.
+
+Working from Visual Studio code allows you to benefit from all the features
+of a professional IDE while working with PXT: working with files, 
+git integration (or source control of your choice), hundreds of extensions.
+
+* background compilation
+* auto-completion
+* pxt command line integration
+
+**Follow [these instructions](https://pxt.io/cli)** to setup your machine and edit your programs in Visual Studio Code.
+
+![](/static/mb/vscode.png)
+

docs/device.md

@@ -0,0 +1,93 @@
+# Device
+
+All the bits and pieces that make up the BBC micro:bit
+
+![](/static/mb/device-0.png)
+
+### LED Screen and Status LED
+
+The red lights are [LEDs](/device/screen) (light emitting diodes) and form a 5 x 5 LED Screen. 
+They can be set to on/off and the brightness can be controlled.
+
+The yellow light on the back of the micro:bit is the status LED.
+It flashes yellow when the system wants to tell the user that something has happened.
+
+### Buttons
+
+Buttons A and B are a form of input.  When you press a button, it completes an electrical circuit. 
+The micro:bit can detect either of its two buttons being pressed/released and be programmed 
+to act on these events.
+
+Button R on the back of the micro:bit is a system button. It has different uses. 
+When you have downloaded and run your code onto your micro:bit, press Button R to restart and run your program from the beginning.
+
+### USB connection
+
+When you plug in your micro:bit, it should appear as ``MICROBIT``. 
+If you accidentally hold down the reset button as you’re plugging in your micro:bit, 
+the micro:bit will appear as a MAINTENANCE drive instead of ``MICROBIT``. This is known as maintenance mode.**
+
+To continue programming your micro:bit YOU MUST unplug your USB and reconnect it. Check that the drive now shows as ``MICROBIT``.
+
+**Use with caution. If you click on the drive while it shows as ``MAINTENANCE``, 
+you can see which version of firmware you have running on your micro:bit. 
+Firmware on your micro:bit should be up-to-date already. 
+You can find the version of firmware in the 'version.txt' file on the micro:bit. Further information on the firmware can be found here:
+
+https://developer.mbed.org/platforms/Microbit/#firmware
+
+### Compass
+
+The compass can detect magnetic fields such as the Earth’s magnetic field. 
+As the micro:bit has this compass, it is possible to detect the direction it is moving in. 
+The micro:bit can detect where it is facing and movement in degrees. 
+This data can be used by the micro:bit in a program or be sent to another device.
+
+### Accelerometer
+
+There is an accelerometer on your micro:bit which detects changes in the micro:bit’s speed. 
+It converts analogue information into digital form that can be used in micro:bit programs. 
+Output is in milli-g. The device will also detect a small number of standard actions e.g. shake, tilt and free-fall.
+
+### Pins
+
+The pins can be a form of input or output. 
+There are labels for the input/output pins P0, P1, P2, which you can attach external sensors to such as thermometers or moisture detectors. 
+You can read more about large and small pins [here](/device/pins).
+
+### Light level
+
+The screen can also be used a light level sensor (it's a really cool trick).
+
+### How do I connect the micro:bit to my computer?
+
+Your micro:bit can be connected to your computer via a micro USB cable. 
+Data can be sent and received between the micro:bit and the computer so programs 
+can be downloaded from Windows, Macs and Chromebooks onto the micro:bit via this USB data connection. 
+You can read more information on how to run scripts on your micro:bit [here](/device/usb), 
+and about the error messages you might get [here](/device/error-codes).
+
+### Powering your micro:bit
+
+When your micro:bit is connected to your computer with the micro USB, it doesn’t need another power source.  
+When your micro:bit isn’t connected to your computer, tablet or mobile, you will need 2 x AAA 1.5 V batteries to power it.
+
+The pins labelled 3V and GND are the power supply pins. 
+You can attach an external device such as a motor to these and power it using the battery or USB.
+
+### Serial Communication
+
+The micro:bit can send an receive data via [serial communication](/device/serial). The serial data can be transfered via USB or BLE.
+
+### Bluetooth Low Energy (BLE) Antenna
+
+You will see the label BLE ANTENNA on the back of your micro:bit. It is for a messaging service, 
+so that devices can talk to each other. The micro:bit is a peripheral 
+device which can talk to a central device like a smart phone or tablet that has Bluetooth Low Energy (BLE). 
+The micro:bit can send signals and receive signals from a central device so another BLE device can 
+control the micro:bit or the micro:bit can control another BLE device.
+
+### Technical Information
+
+The micro:bit has been designed to be a bare-board micro controller for use by children aged 11-12. 
+More information is available at the [BBC web site](http://www.microbit.co.uk/device).

docs/device/contents.md

@@ -0,0 +1,19 @@
+# micro:bit - the device
+
+The micro:bit is a very capable device with many components:
+
+* [the USB connector](/device/usb)
+* [the LED screen](/device/screen)
+* [the buttons]
+* [the accelerometer]
+* [the compass]
+* [the pins](/device/pins)
+* [the battery plug]
+
+The micro:bit embodies many fundamental concepts in computer science. To learn more, read:
+
+* [the micro:bit - a reactive system](/device/reactive)
+
+Sometimes, your micro:bit may display an error code. For more information, see:
+
+* [the error codes](/device/error-codes)

docs/device/crocodile-clips.md

@@ -0,0 +1,47 @@
+# crocodile clips
+
+The large holes at the bottom of the board are designed to attach alligator/crocodile clips 
+to create electrical circuit with other components.
+
+# ~hint
+
+**No crocodile clips!?!?!** Use wires or Aluminium foil! [Read more...](/device/foil-circuits)
+
+# ~
+
+
+## Connecting Crocodile Clips
+
+The hole for ``P0`` and ``GND`` allow to grab the board on the side which makes for a great grip.
+
+![](/static/mb/device/croc-clips/crocclipsclamped.jpg)
+
+Pass one jaw in the hole and grab the side of the board with the other jaw.
+
+![](/static/mb/device/croc-clips/sideclamp.jpg)
+
+For the center holes, ``P1`` and ``P2``, you can also grab the bottom of the board but they are a bit harder to grip.
+
+You can also grip the board between the jaws. In which case, you will want to make sure to avoid overlapping the jaws 
+with the other pins as it will create short-circuit in the board.
+
+![](/static/mb/device/croc-clips/badclamp.jpg)
+
+Adding a little tape helps keeping the crocodile clips in place.
+
+![](/static/mb/device/croc-clips/frontclamp.jpg)
+
+## Example: on pin pressed with random numbers
+
+This example displays a random number every time the crocodile clip holds  `GND` then connects and disconnects the `P0` pin. 
+Each time the crocodile clip is firmly connected and disconnected from pin `P0`, the micro:bit will return a random Number between 0 and the parameter limit.
+
+```blocks
+input.onPinPressed(TouchPin.P0, () => {
+    basic.showNumber(Math.random(10))
+})
+```
+
+## See also
+
+[micro:bit pins](/device/pins)

docs/device/error-codes.md

@@ -0,0 +1,23 @@
+# Error codes
+
+Your micro:bit may encounter a situation that prevents it from running your code. When this happens, a frowny face will appear on your micro:bit screen (see picture) followed by an error number.
+
+Below is a list of error numbers and what they mean:
+
+* **10** (`MICROBIT_I2C_LOCKUP`): the micro:bit's I2C bus is not working
+* **20** (`MICROBIT_OOM`): there is no free memory on the micro:bit
+
+```sim
+basic.showLeds(`
+    # . . . #
+    # # . # #
+    . . . . .
+    . # # # .
+    # . . . #
+    `)
+```
+
+### See also
+
+[Run scripts on your micro:bit](/device/usb)
+

docs/device/foil-circuits.md

@@ -0,0 +1,52 @@
+# foil circuits
+
+The large holes at the bottom of the board are designed to attach alligator/crocodile clips 
+to create electrical circuit with other components.
+
+If you do not have crocodile clips at hand, dyou can use wires or even Aluminium foil to acheive the same result.
+We will show you how to connect the micro:bit to headphones using Alumunium foil and tape.
+
+https://youtu.be/mhXYyPuvpz0
+
+### Materials
+
+* micro:bit and battery pack (you can also power it via USB)
+* a small piece of cardboard
+* Aluminium foil
+* tape
+
+### Assembly instructions
+
+Tape the micro:bit and battery pack to the card board. Make sure to remove the batteries while you are building your circuit.
+
+![](/static/mb/device/croc-clips/microbitattached.jpg)
+
+Cut the thinest strip of foil possible and roll it into a cable. You can also try to fold, whatever works for you.
+Build two of those wires.
+
+![](/static/mb/device/croc-clips/foilcut.jpg)
+
+Place the foil wire on the ``GND`` pin and attach with a piece of tape. Press hard to get the best connection between
+the foil and the pin board. Make sure the foil is not overlapping with the other pins!
+
+![](/static/mb/device/croc-clips/groundconnected.jpg)
+
+Place the second wire on the ``P0`` pin the same way. Make sure the wire does not overlap with the other pins!
+
+![](/static/mb/device/croc-clips/microbitconnect.jpg)
+
+Tape the headphone jack connector to the cardboard and roll the wire coming from ``GND`` around the metal base. 
+Make sure the wire does not touch the other metal rings on the jack.
+
+![](/static/mb/device/croc-clips/jackground.jpg)
+
+Tape the second wire on the head of the jack connector.
+
+![](/static/mb/device/croc-clips/jackconnect.jpg)
+
+![](/static/mb/device/croc-clips/foilcircuit.jpg)
+
+
+## See also
+
+[micro:bit pins](/device/pins)

docs/device/pins.md

@@ -0,0 +1,63 @@
+# micro:bit pins
+
+The micro:bit pins 
+
+![](/static/mb/device/pins-0.png)
+
+The micro:bit has 25 external connections on the edge connector of the board, which we refer to as ‘pins’.  The edge connector is the grey area on the right side of the figure above.
+
+There are five large pins, that are also connected to holes in the board labelled: 0, 1, 2, 3V, and GND. And along the same edge, there are 20 small pins that you can use when plugging the micro:bit into an edge connector.
+
+### Large pins
+
+You can easily attach crocodile clips or 4mm banana plugs to the five large pins.
+
+The first three, labelled 0, 1 and 2 are flexible and can be used for many different things - which means they are often called ‘general purpose input and output’ (shortened to GPIO). These three pins also have the ability to read analogue voltages using something called an analogue-to-digital converter (ADC). They all have the same function:
+
+* **0**: GPIO (general purpose digital input and output) with analogue to digital convertor (ADC).
+* **1**: GPIO with ADC
+* **2**: GPIO with ADC
+
+The other two large pins (3V and GND) are very different!/td/td
+
+### ~hint 
+
+Watch out! The pins labelled 3V and GND relate to the power supply of the board, and they should NEVER be connected together.
+
+### ~
+
+*power input*: If the micro:bit is powered by USB or a battery, then you can use the 3V pin as a *power output* to power peripherals with.
+
+* **3V**: *3 volt power output* or *power input*.  (1) *power output*: If the micro:bit is powered by USB or a battery, then you can use the 3V pin as a power output to power peripherals with; (2) *power input*: If the micro:bit is not being powered by USB or battery, you can use the 3V pin as a power input to power the micro:bit
+* **GND**: attaches to ground in order to complete a circuit (required when using the 3V pin)
+
+If you hold the ‘GND’ pin with one hand, you can program the microbit to detect yourself touching the 0,1 or 2 pins with your other hand, giving you three more buttons to experiment with (you just used your body to complete an electrical circuit).
+
+### Small pins
+
+There are 20 small pins numbered sequentially from 3-22 (these pins are not labeled on the micro:bit, however, they are labelled in the picture above).
+
+Unlike the three large pins that are dedicated to being used for external connections, some of the small pins are shared with other components on the micro:bit board. For example, pin 3 is shared with some of the LEDs on the screen of the micro:bit, so if you are using the screen to scroll messages, you can’t use this pin as well.
+
+* **pin 3**: GPIO shared with LED Col 1 of the LED screen; can be used for ADC and digital I/O when the LED screen is turned off.
+* **pin 4**: GPIO shared with LED Col 2 of the LED screen; can be used for ADC and digital I/O when the LED screen is turned off.
+* **pin 5**: GPIO shared with Button A. This lets you trigger or detect a button "A" click externally. This pin has a pull-up resistor, which means that by default it is at voltage of 3V. To replace button A on the micro:bit with an external button, connect one end of the external button to pin 4 and the other end to GND. When the button is pressed, the voltage on pin 4 is pulled down to 0, which generates a button click event.
+* **pin 6**: GPIO shared with LED Col 9 of the LED screen;  can be used for digital I/O when the LED screen is turned off.
+* **pin 7**: GPIO shared with LED Col 8 of the LED screen; can be used for digital I/O when the LED screen is turned off.
+* **pin 8**: Dedicated GPIO, for sending and sensing digital signals.
+* **pin 9**: GPIO shared with LED Col 7 of the LED screen;  can be used for digital I/O when the LED screen is turned off.
+* **pin 10**: GPIO shared with LED Col 3 of the LED screen;  can be used for ADC and digital I/O when the LED screen is turned off.
+* **pin 11**: GPIO shared with Button B. This lets you trigger or detect a button “B” click externally.
+* **pin 12**: this GPIO pin has been reserved to provide support for accessibility.
+* **pin 13**: GPIO that is conventionally used for the serial clock (SCK) signal of the 3-wire Serial Peripheral Interface (SPI) bus.
+* **pin 14**: GPIO that is conventionally used for the Master In Slave Out (MISO) signal of the SPI bus.
+* **pin 15**: GPIO that is conventionally used for the Master Out Slave In (MOSI) signal of the SPI bus.
+* **pin 16**: Dedicated GPIO (conventionally also used for SPI ‘Chip Select’ function).
+* **pins 17 and 18**: these pins are wired to the 3V supply, like the large ‘3V’ pad.
+* **pins 19 and 20**: implement the clock signal (SCL) and data line (SDA) of the I2C bus communication protocol. With I2C, several devices can be connected on the same bus and send/read messages to and from the CPU. Internally, the accelerometer and the compass are connected to i2c.
+* **pins 21 and 22**: these pins are wired to the GND pin and serve no other function
+
+### Connecting to the small pins
+
+It is recommended that an edge connector be acquired to connect to the small pins. More information on compatible edge connectors will be available later.
+

docs/device/reactive.md

@@ -0,0 +1,158 @@
+# The micro:bit - a reactive system
+
+### Computing systems
+
+What sort of a *computing system* is the micro:bit?
+
+### ~hint 
+
+There are different types of computing systems, to address different kinds of problems that arise in practice: *transaction processing systems* are used by banks to handle huge numbers of financial transactions by their customers; *distributed systems* make a set of networked computers appear as one big computer (like Google’s search engine); there are also *parallel systems*, such as graphic cards, which perform a huge number of primitive operations simultaneously, using a great number of small processing cores.
+
+### ~
+
+The micro:bit is a *reactive system* – it reacts continuously to external events, such as a person pressing the A button of the micro:bit or shaking the device. The reaction to an event may be to perform a computation, update variables, and change the display.  After the device reacts to an event, it is ready to react to the next one. If this sounds like a computer game, that’s because most computer games are reactive systems too!
+
+### Responsiveness
+
+We want reactive systems to be responsive, which means to react in a timely manner to events. For example, when you play a computer game, it’s frustrating if you press a button to make a character jump, but it doesn’t immediately jump.  A delay in reacting, or lack of responsiveness , can be the difference between life and death, both in the real and virtual worlds.
+
+Let’s consider a simple example: you want to program your micro:bit to accurately count the number of times the A button has been pressed and continuously display the current count on the 5x5 [LED screen](/device/screen).   Because the LED screen is small, we can only display one digit of a number at a time on it. The [show number](/reference/basic/show-number) function will scroll the digits of a number across the screen so you can read it.
+
+Let’s say that the current count is 42 and the number 42 is scrolling across the LED screen. This means there is some code executing to perform the scroll.  So, what should happen if you press the A button during the scroll?  It would be a bad idea to ignore the button press, so some code should record the occurrence of the button press. But we just said there already is code running in order to scroll the number 42!  If we wait until the code scrolling the 42 has finished to look for a button press, we will miss the button press.  We want to avoid this sort of unresponsiveness.
+
+### Concurrency
+
+To be responsive, a reactive system needs to be able to do several things at the same time (concurrently), just like you can.  But the micro:bit only has one CPU for executing your program, which means it can only execute one program instruction at a time. On the other hand, it can execute millions of instructions in a single second.  This points the way to a solution.
+
+Think about how a motion picture projector works - it projects only 24 frames per second, yet this is good enough to provide the illusion of fluid motion on the screen. The micro:bit can execute millions of instructions per second, so it seems quite possible for the device to both to smoothly scroll the number 42 across the LED screen while looking for button presses and counting them.
+
+Let’s think about three sequences of instructions:
+
+* Sequence S1 contains the instructions (let’s say several hundred thousand or so) that scroll the number 42 across the LED screen;
+* Sequence S2 contains a few instructions to check if button A is pressed;
+* Sequence S3 contains a few instructions to increment a counter.
+
+In order to be responsive, we would like to *interrupt* the execution of sequence S1 *periodically* to execute the sequence S2, which will check if button A is pressed, which looks like:
+
+TODO Diagram
+
+The result is that it takes sequence S1 a little longer to complete, due to the interruptions to execute sequence S2, but we are checking often enough to detect a press of button A .  When S2 detects a press of button A, then the sequence S3 can be executed before S1 resumes:
+
+TODO Diagram
+
+As we’ll soon see, there are other choices for how the sequences can be ordered to achieve the desired result.
+
+### The micro:bit scheduler and queuing up subprograms
+
+The micro:bit’s *scheduler* provides the capability to concurrently execute different code sequences, relieving us of a lot of low-level programming.   In fact, scheduling is so useful that it is a part of every *operating system*!
+
+The first job of the scheduler is to allow multiple *subprograms* to be queued up for later execution . For our purposes, a subprogram is just a statement or sequence of statements in the context of a larger program. Consider the Touch Develop program below for counting button presses.
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count++;
+})
+basic.forever(() => {
+    basic.showNumber(count, 150)
+})
+```
+
+The program above contains three statements that execute in order from top to bottom. 
+The first statement initializes the global variable `count` to zero.
+
+```blocks
+let count = 0
+```
+
+The second statement informs the scheduler that on each and every event of the A button being pressed, a subprogram (called the event handler) should be queued for execution. The event handler is demarcated by the do/end keywords; it increments the global variable `count` by one.  
+
+```blocks
+let count = 0
+// ...
+input.onButtonPressed(Button.A, () => {
+    count++;
+})
+```
+
+The third statement queues a `forever` loop for later execution by the scheduler; the body of this loop (between the do/end keywords) displays the current value of global variable `count` on the LED screen. The third statement
+
+```blocks
+let count = 0
+// ...
+basic.forever(() => {
+    basic.showNumber(count, 150)
+})
+```
+
+
+The function ends after the execution of these three statements, but this is not the end of program execution!  That’s because the function queued the `forever` loop for execution by the scheduler.
+
+The second job of the scheduler is to periodically interrupt execution to read (poll) the various inputs to the micro:bit (the buttons, pins, etc.) and fire off events (such as “button A pressed”). Recall that the firing of an event causes the event handler subprogram associated with that event to be queued for later execution. The scheduler uses a timer built into the micro:bit hardware to interrupt execution every 6 milliseconds and poll the inputs, which is more than fast enough to catch the quickest press of a button.
+
+### Cooperative passing of control
+
+How does the forever loop get to start execution? Furthermore, once the forever loop is running, how does any other subprogram (like the event handler that increments the count) ever get a chance to execute?
+
+The answer is “cooperation” and “passing”.  Think of a football team doing a drill – there is one ball and each footballer gets to dribble the ball for a certain number of touches, after which they pass to another footballer. A footballer who never passes prevents all other footballers from dribbling.  A cooperative footballer always passes to some other footballer after taking a few touches.
+
+If you hadn’t guessed already, a footballer represents subprogram and dribbling the ball corresponds to that subprogram executing. Only one subprogram gets to execute at a time, as there is only one ball (processor). Footballer Alice passing the ball to footballer Bob corresponds to stopping execution of Alice’s subprogram (and remembering where it stopped) and starting/resuming execution of Bob’s subprogram.
+
+We will call this “passing control of execution” rather than “passing the ball”.  However, in the world of the micro:bit, the concurrently executing subprograms are not aware of each other, so they don’t actually pass control directly to one another.  Rather they pass control of execution back to the scheduler and the scheduler determines the subprogram to pass control to next.  The programmer inserts a call to the `pause` function to indicate a point in the subprogram where control of execution passes to the scheduler. Also, when a subprogram ends execution, control passes to the scheduler.
+
+Let’s take a look at the implementation of the `basic.forever` function to see an example of cooperative scheduling:
+
+```typescript
+function forever(body: () => void) {
+    control.inBackground(() => {
+        while(true) {
+            body()
+            basic.pause(20)
+        }
+    })
+}
+```
+
+The `forever` loop actually is a function that takes a subprogram (an *Action* in Touch Develop) as a parameter. The function uses the `control -> in background` function of the micro:bit runtime to queue a `while true` loop for execution by the scheduler. The while loop has two statements. The first statement runs the subprogram represented by the `body` parameter. The second statement passes control to the scheduler (requesting to “sleep” for 20 milliseconds).
+
+Though the `while true` loop will repeatedly execute the body subprogram, between each execution of the body it will permit the scheduler to execute other subprograms.  If the while loop did not contain the call to `pause`, then once control passed into the while loop, it would never pass back to the scheduler and no other subprogram would be able to execute (unless the body subprogram contained a call to `pause` itself).
+
+### Round-robin scheduling
+
+Now, we come to the third and final job of the scheduler, which is to determine which subprogram to pass control to next. The scheduler uses two queues to perform this task, the sleep queue and the run queue. The sleep queue contains the subprograms that have called the pause function and still have time left to sleep. The run queue contains all the non-sleeping subprograms, such as the event handlers queued by the firing of an event.
+
+The scheduler  moves the subprogram that has just paused into the sleep queue and then removes the subprogram at the head of the run queue and resumes its execution. Once a subprogram’s sleep period is over, the scheduler moves it from the sleep queue to the back  of the run queue.
+
+The property of such round-robin scheduling is that under the assumption that every subprogram periodically enters the sleep queue, then every subprogram will periodically get a chance to execute.
+
+### Putting it all together
+
+Let’s go back to the `count button presses` function and revisit its execution based on what we have learned about the micro:bit scheduler. As detailed before, the function executes three steps to: (1) set up the event handler for each press of button A; (2) queue the forever loop to the run queue; (3) initialize the global variable `count` to zero.
+
+The function then ends execution and control passes back to the scheduler.  Let’s assume the user has not pressed any buttons . The scheduler finds the `forever` loop in the run queue and passes control to it.  The loop first calls `basic -> show number(0,150)`.  In the diagram below, we use “Show 0” to refer to the execution of this function:
+
+![](/static/mb/device/reactive-3.png)
+
+While "Show 0" (the blue sequence) is running, periodic interrupts by the scheduler (every 6 milliseconds) poll for button presses and queue an event handler for each press of button A.  Let’s say that one button press takes place during this time, as shown above. This will cause an event handler (labelled “inc”) to be queued for later execution by the scheduler. Once the "Show 0" has completed, the loop then calls `basic -> pause(20)` to put the forever loop to sleep for 20 milliseconds and give the scheduler an opportunity to run any newly queued event handler. Control passes to the “inc” event handler which will increment the global variable `count` from 0 to 1 and then complete, returning control to the scheduler.  At some point, the `forever` loop moves from the sleep queue to the run queue; the `forever` loop then will resume and call `basic -> show number(1,150)`.
+
+### Final thoughts
+
+Through this example, we have seen that the micro:bit scheduler enables you to create a program that is composed of concurrent subprograms. In essence, the programmer needs to only think about the concurrent subprograms cooperatively passing control back to the scheduler, making sure no subprogram hogs control (or “dribbles the ball without passing”) for too long. While a subprogram runs, the scheduler polls the buttons and other IO peripherals at a high frequency in order to fire off events and queue event handlers for later execution, but this is invisible to the programmer.
+
+As a result, you can easily add a new capability to the micro:bit by just adding a new subprogram. For example, if you want to add a reset feature to the counter program, all you need to do is add a new event handler for a press of button B that sets the global variable "count" to zero, as shown below:
+
+```typescript
+export function countButtonPressesWithReset() {
+    let count = 0
+    input.onButtonPressed(Button.A, () => {
+        count = count + 1
+    })
+    basic.forever(() => {
+        basic.showNumber(count, 150)
+    })
+    input.onButtonPressed(Button.B, () => {
+        count = 0
+    })
+}
+```
+

docs/device/screen.md

@@ -0,0 +1,100 @@
+# LED screen
+
+The micro:bit LED screen 
+
+```sim
+    basic.showLeds(`
+        # . # . #
+        . # . # .
+        # . # . #
+        . # . # .
+        # . # . #
+        `);
+```
+
+The micro:bit LED screen consists of 25 red LED lights arranged in a 5X5 grid (5 LEDs across by 5 LEDs down).
+In the screen above, we created a checkerboard pattern using the LEDs.
+
+### Which LED?
+
+You use `(x ,y)` coordinates to specify a particular LED in the grid; 
+where `x` is the horizontal position (0,1,2,3,4) and `y` is the vertical position 
+(0, 1, 2, 3, 4). 
+
+To figure out the ``x``, ``y`` coordinates, position your micro:bit horizontally, like a credit card (see picture above).
+
+Here are the x, y coordinates for the LEDs in the 5X5 grid:
+
+`(0,0)` `(1,0)` `(2,0)` `(3,0)` `(4,0)`
+
+`(0,1)` `(1,1)` `(2,1)` `(3,1)` `(4,1)`
+
+`(0,2)` `(1,2)` `(2,2)` `(3,2)` `(4,2)`
+
+`(0,3)` `(1,3)` `(2,3)` `(3,3)` `(4,3)`
+
+`(0,4)` `(1,4)` `(2,4)` `(3,4)` `(4,4)`
+
+The x, y coordinates for the LED in the centre of the grid are `(2,2)`. Starting from `(0,0)` count over 2 columns and then down 2 rows.
+
+### Check your understanding
+
+Which LEDs are turned on in the checkboard pattern above? 
+
+### Row, column - 1
+
+Since the row and column numbers start at 0, an easy way to figure out the (x,y) coordinates 
+is to subtract 1 from the row and column number (when counting from 1). 
+In other words, to specify the LED in the 4th column 5th row, subtract 1 from each number to get coordinates `(3,4)`.
+
+### Turn a LED on/off
+
+Use [plot](/reference/led/plot) and [unplot](/reference/led/unplot) to turn a LED on or off
+
+```blocks
+led.plot(0,0);
+led.plot(1,1);
+basic.pause(1000);
+led.unplot(0,0);
+basic.pause(1000);
+led.unplot(1,1);
+```
+
+### Is a LED on/off?
+
+Use the [point](/reference/led/point) function to find out if a LED is on or off.
+
+```blocks
+if(led.point(0,0)) {
+}
+```
+
+### Display images, strings and numbers
+
+Instead of turning individual LEDs on or off, as above, you can display an [image](/reference/images/image) directly to the screen or show text/numbers on screen using the [show number](/reference/basic/show-number)/[show string](/reference/basic/show-string) function.
+
+### The display buffer
+
+The micro:bit runtime keeps an in-memory representation of the state of all 25 LEDS. This state is known as the "display buffer" and controls which LEDS are on and which are off. The plot/unplot/point functions access the display buffer directly. On the other hand, the functions that show an image, number or string overwrite the buffer completely. To illustrate, first try running this code sequence
+
+```blocks
+basic.showString("d")
+led.plot(0, 0)
+```
+
+You will see the letter "d" displayed as well as the LED in position `0,0` lit up. Now try reversing the order of the two statements above:
+
+```blocks
+led.plot(0, 0)
+basic.showString("d", 150)
+```
+
+You will not see the LED at position `0,0` lit up because the `show string` function overwrites the whole display buffer.
+
+
+### Pins: P3, P4, P6, P7, P9, P10
+
+These pins are coupled to the LED matrix display, and also it’s associated ambient light sensing mode.
+To disable the display driver feature (which will automatically disable the light sensing feature) use the function [led.enable](/reference/led/enable). 
+
+More information at http://tech.microbit.org/hardware/edgeconnector_ds/ .

docs/device/serial.md

@@ -0,0 +1,93 @@
+# Serial
+
+The [serial](/reference/serial) supports [serial communication](https://en.wikipedia.org/wiki/Serial_port) between the BBC micro:bit and another computer. Basically, this allows you to send data from the micro:bit to your own computer. This is very useful for debugging purposes: you can add `write line` statements in your code and see them display on your computer as the program executes.
+
+The code below shows a simple script that sends a line when the BBC micro:bit starts and another line each time the button ``A`` is pressed.
+
+```blocks
+serial.writeLine("started...")
+input.onButtonPressed(Button.A, () => {
+    serial.writeLine("A pressed")
+})
+```
+
+Data is also automatically streamed to serial by the ** bar graph** block
+and picked up by the editor. This data can be streamed to the cloud as well.
+
+```blocks
+basic.forever(() => {
+   led.plotBarGraph(input.acceleration(Dimension.X), 0);
+});
+```
+
+## How to read the micro:bit's serial output from your computer
+
+Unfortunately, using the serial library requires quite a bit of a setup.
+
+### BBC micro:bit Chrome Extension
+
+If you are using the Google Chrome browser, you can use our extension to get serial data streaming in the editor.
+
+* Install the [Extension for BBC micro:bit](https://chrome.google.com/webstore/detail/extension-for-bbc-microbi/cihhkhnngbjlhahcfmhekmbnnjcjdbge?hl=en-US) on the Chrome Web Store.
+* Restart Chrome and open the [web editor](https://pxt.microbit.org)
+* The serial data will show below the simulator
+
+### Windows
+
+You must install a device driver (for the computer to recognize the
+serial interface of the micro:bit); then, you must also install a
+terminal emulator (which is going to connect to the micro:bit and read
+its output).
+
+* Follow the instructions at
+  https://developer.mbed.org/handbook/Windows-serial-configuration to
+  install the device driver.
+
+* Instructions for installing a terminal emulator are below.
+
+#### Windows > Tera Term
+
+* Install the terminal emulator [Tera Term](https://ttssh2.osdn.jp/index.html.en). At the time of this writing, the latest version is 4.88 and can be downloaded [from here](http://en.osdn.jp/frs/redir.php?m=jaist&f=%2Fttssh2%2F63767%2Fteraterm-4.88.exe). Follow the instructions from the installer.
+
+Once both the driver and the terminal emulator are installed, plug in the micro:bit and wait until the device is fully setup. Then, open TeraTerm.
+
+* Hit `File` > `New Connection`
+* Check "Serial"; in the dropdown menu, pick the COM port that says "mbed Serial Port". Hit `Ok`.
+* In the menus, hit `Setup` > `Serial Port` and set the baud rate to `115200`.
+
+You should be good. Feel free to hit `Setup` > `Save Setup` in the menus to erase the default configuration file with a new one so that you don't have to type in the settings again.
+
+Please note that Windows will assign you a different COM port if you plug in another micro:bit. If you're juggling between micro:bits, you'll have to change the COM port every time.
+
+#### Windows > Putty
+
+If you prefer another terminal emulator (such as [PuTTY](http://www.putty.org/)), here are some instructions.
+
+* Open Windows's [Device Manager](https://windows.microsoft.com/en-us/windows/open-device-manager); expand the section called "Ports (COM & LPT)"; write down the com number for "mbed Serial Port" (e.g. COM14)
+* Open PuTTY; on the main screen, use the following settings: Serial / COM14 / 115200. Replace COM14 with the COM port number you wrote down previously. Feel free to type in a name and hit "Save" to remember this configuration.
+
+![](/static/mb/serial-library-0.png)
+
+* (optional): in the "Terminal" section, check "implicit cr in every lf"
+
+![](/static/mb/serial-library-1.png)
+
+### Linux
+
+* Install the program `screen` if it is not already installed.
+* Plug in the micro:bit.
+* Open a terminal.
+* Find which device node the micro:bit was assigned to with the command `ls /dev/ttyACM*`.
+* If it was `/dev/ttyACM0`, type the command `screen /dev/ttyACM0 115200`. If it was some other device node,
+  use that one in the command instead. **Note:** You may need root access to run `screen`
+  successfully. You can probably use the command `sudo` like this: `sudo screen /dev/ttyACM0 115200`.
+* To exit `screen`, type `Ctrl-A` `Ctrl-D`.
+
+Alternative programs include `minicom` and so on.
+
+### Mac OS
+
+* Plug in the micro:bit
+* Open a terminal
+* `ls /dev/cu.*` will return to you a list of serial devices; one of them will look like `/dev/cu.usbmodem1422` (the exact number depends on your computer)
+* `screen /dev/cu.usbmodem1422 115200` will open up the micro:bit's serial output. To exit, hit `Ctrl-A` `Ctrl-D`.

docs/device/servo.md

@@ -0,0 +1,116 @@
+# Equipping a microservo with Crocodile clips
+
+## Materials
+  * Cutting pliers or wire cutter
+  * Tape (masking, duct tape, and/or packing tape)
+  * 3 crocodile clips, yellow, red and black.
+  * 1 micro servo 9g (SG90)
+
+## Using a microservo with the @boardname@
+
+The @boardname@ provides just enough current to operate the SG90 microservo. 
+The servo requires 3 connections: GND, 3V and a logic pin. 
+In this tutorial, we will equip the servo with crocodile clips to make it easier to use. 
+However, you could also use a shield or female to crocodile clips to acheive the same effect.
+
+If you are running a class or activity, you should consider preparing all servos before hand.
+
+### ~ hint
+
+Kitronik wrote an excellent in-depth guide about using servos with the @boardname@. 
+Check it out at https://www.kitronik.co.uk/blog/using-bbc-microbit-control-servo/ .
+
+### ~
+
+## Step 1: cutout the connector
+
+Using the cutting pliers, cut out the dark plastic connector.
+
+![](/static/mb/projects/inchworm/servo1.jpg)
+
+## Step 2: strip out cables
+
+Using the plier or a wire stripper, strip the plastic from the cables.
+
+![](/static/mb/projects/inchworm/servotrim.jpg)
+
+## Step 3: threading the servo cablers
+
+Thread the servo cables.
+
+![](/static/mb/projects/inchworm/servo3.jpg)
+
+## Step 4: crocobile clip claps
+
+Cut a crocodile cable in two and strip out the casing. 
+If possible try to use the same cable colors as the servo!
+
+![](/static/mb/projects/inchworm/servo4.jpg)
+
+## Step 5: thread cables together
+
+Place the cables next to each other
+
+![](/static/mb/projects/inchworm/servo5.jpg)
+
+... and thread them together.
+
+![](/static/mb/projects/inchworm/servo6.jpg)
+
+### ~ hint
+
+It is very **important** to ensure that there is a good connection between the 2 cables.
+If the connection is weak, the microservo will not receive enough current and it will not work.
+**If you have access to a soldering iron, we strongly recommend to solder this connection.**
+
+### ~
+
+## Step 4: protect the connection
+
+Protect the connection with electrical or duct tape.
+
+![](/static/mb/projects/inchworm/servo7.jpg)
+
+## Step 5: repeat for all cables
+
+Repeat the same process until all cables are connected.
+
+![](/static/mb/projects/inchworm/servo8.jpg)
+
+## Step 6: testing!
+
+It's time to test that your connection are all proper and that the servo will function **when the @boardname@ is powered by battery**.
+
+* Connect the microservo to the @boardname@. Black cable on ``GND``, red cable on ``3V`` and remaining cable on ``P0``.
+
+![](/static/mb/projects/inchworm/circuit1.jpg)
+
+### ~ hint
+
+When attaching the crocodile clips to the pins, don't hesitate to grab the side of the board with the jaws.
+
+![](/static/mb/projects/inchworm/circuit2.jpg)
+
+### ~
+
+* Download the following code to your @boardname@
+
+```blocks
+basic.forever(() => {
+    pins.servoWritePin(AnalogPin.P0, pins.map(
+        input.acceleration(Dimension.X),
+        -512,
+        512,
+        0,
+        180
+    ))
+})
+```
+
+* When powered by USB, make sure that the servo moves when you tilt the board.
+* When powered by batteries **only**, make sure that the servo moves when you tilt the board.
+
+## Troubleshooting
+
+If your servo seems to sutter and stay stuck at a particular position, it means that it is not receiving enough power.
+This is probably due to a weak connection or low battery level. Check each connection and check your batteries.

docs/device/simulator.md

@@ -0,0 +1,25 @@
+# Simulator
+
+The JavaScript simulator allows to test and execute most BBC micro:bit programs in the browser.
+It allows to emulate sensor data or user interactions.
+
+```sim
+input.onButtonPressed(Button.A, () => {
+   basic.showString("A");
+});
+input.onButtonPressed(Button.B, () => {
+   basic.showString("B");
+});
+input.onPinPressed(TouchPin.P0, () => {
+   basic.showString("0");
+});
+input.onPinPressed(TouchPin.P1, () => {
+   basic.showString("1");
+});
+input.onPinPressed(TouchPin.P2, () => {
+   basic.showString("2");
+});
+input.temperature()
+input.compassHeading()
+input.lightLevel()
+```

docs/device/usb.md

@@ -0,0 +1,31 @@
+# Uploading programs on your micro:bit
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+![](/static/mb/device/usb-thin.jpg)
+
+## Instructions
+
+Pick the instructions for your operating system and browser:
+
+* [Windows - Microsoft Edge](/device/usb/windows-edge)
+* [Windows - Internet Explorer](/device/usb/windows-ie)
+* [Windows - Chrome](/device/usb/windows-chrome)
+* [Windows - Firefox](/device/usb/windows-firefox)
+* [Mac - Safari](/device/usb/mac-safari)
+* [Mac - Chrome](/device/usb/mac-chrome)
+* [Mac - Firefox](/device/usb/mac-firefox)
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/mac-chrome.md

@@ -0,0 +1,69 @@
+# Uploading from Chrome for Mac
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-osx-device.png)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+When you select **Download** in Chrome, the file will appear at the bottom of
+the browser. Click on the small arrow and select **Show in Finder**. This will
+show the file in your download folder. Drag and drop the file onto your
+`MICROBIT` drive.
+
+![](/static/mb/device/usb-osx-chrome.png)
+
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/mac-firefox.md

@@ -0,0 +1,71 @@
+# Uploading from Firefox for Mac
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-osx-device.png)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+A dialogue box will appear, asking whether you would like to open or save your
+hex file. Select **Save file** and click **OK** and the file will then appear in
+your downloads in the top right of your browser. Right click on the file and
+click on **Show in Finder** and the file will appear in your downloads folder.
+Select the file and drag and drop it onto your `MICROBIT` drive.
+
+![](/static/mb/device/usb-osx-firefox-1.jpg)
+
+![](/static/mb/device/usb-osx-firefox-2.png)
+
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/mac-safari.md

@@ -0,0 +1,68 @@
+# Uploading from Safari for Mac
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-osx-device.png)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+When you select **Download** in Safari a file called `Unknown` will be
+downloaded into your Downloads folder. Open your Downloads folder and drag and
+drop the file onto your `MICROBIT` drive, under Devices:
+
+![](/static/mb/device/usb-osx-dnd.png)
+
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/troubleshooting.md

@@ -0,0 +1,24 @@
+# Troubleshooting Transfer
+
+You can’t drag and drop more than one hex file at once onto your micro:bit. If
+you try to drag and drop a second hex file onto your micro:bit  before the first
+file has finished downloading, then the second file may fail in different ways.
+
+When the first program has been written to the micro:bit, the drive will
+disengage. If you drag and drop a second file at this point it may not find the
+drive and the second write will fail.
+
+The errors may look like this:
+
+**Windows**
+
+![](/static/mb/device/usb-windows-copy-file-error.jpg)
+
+**Mac**
+
+![](/static/mb/device/usb-osx-copy-file-error.png)
+
+Or it may appear that there are two hex files on your micro:bit so the micro:bit
+won’t be able to run multiple files. To rectify this, unplug your micro:bit and
+plug it in again. Make sure that your micro:bit  appears as `MICROBIT` and not
+`MAINTENANCE`.

docs/device/usb/windows-chrome.md

@@ -0,0 +1,79 @@
+# Uploading from Chrome for Windows
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+### ~hint
+
+You can use the [micro:bit uploader](/uploader) to automatically deploy ``.hex`` files to your micro:bit!
+![](/static/uploader/tooltip.png)
+
+### ~
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-windows-device.jpg)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+Your `.hex` file appears as a download at the bottom of the browser. Click on
+the arrow next to the name of the file and then click **Show in folder**.
+
+![](/static/mb/device/usb-windows-chrome.png)
+
+Drag and drop the `.hex` file from the download folder onto the `MICROBIT` drive.
+
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+In File Explorer, right-click on the hex file (created in Step 2 above), choose **Send to**, and then **MICROBIT**.
+
+![](/static/mb/device/usb-windows-sendto.jpg)
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/windows-edge.md

@@ -0,0 +1,89 @@
+# Uploading from Edge on Windows
+
+How to compile, transfer, and run a program on your micro:bit on **Microsoft Edge**.
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+### ~hint
+
+You can use the [micro:bit uploader](/uploader) to automatically deploy ``.hex`` files to your micro:bit!
+![](/static/uploader/tooltip.png)
+
+### ~
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-windows-device.jpg)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+A message will appear at the bottom of the browser asking what you want to do
+with the file. Click **Save**:
+
+![](/static/mb/device/usb-windows-edge-1.png)
+
+Then click **Open folder** and drag and drop the file from your Downloads to
+your `MICROBIT` drive.
+
+![](/static/mb/device/usb-windows-edge-2.png)
+
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* If you're using Windows, you can use **Send to** as described below 
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+In File Explorer, right-click on the hex file (created in Step 2 above), choose **Send to**, and then **MICROBIT**.
+
+![](/static/mb/device/usb-windows-sendto.jpg)
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+If you want to save time, you can use the [micro:bit uploader](/uploader) to
+automatically deploy hex files to your micro:bit. It works on Windows and is
+compatible with any browser.
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/windows-firefox.md

@@ -0,0 +1,86 @@
+# Uploading from Firefox on Windows
+
+How to compile, transfer, and run a program on your micro:bit on **Firefox for Windows**.
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+### ~hint
+
+You can use the [micro:bit uploader](/uploader) to automatically deploy ``.hex`` files to your micro:bit!
+![](/static/uploader/tooltip.png)
+
+### ~
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-windows-device.jpg)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+A window will appear asking whether you want to save or open the `.hex` file.
+Select **Save File** and then select **OK**.
+
+![](/static/mb/device/usb-windows-firefox-1.png)
+
+The file will then appear in your downloads in the top right of your browser.
+Click the **folder icon** next to the filename to open it in Windows Explorer.
+
+![](/static/mb/device/usb-windows-firefox-2.jpg)
+
+Drag and drop the `.hex` file from the download folder onto the `MICROBIT` drive.
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* If you're using Windows, you can use **Send to** as described below 
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+In File Explorer, right-click on the hex file (created in Step 2 above), choose **Send to**, and then **MICROBIT**.
+
+![](/static/mb/device/usb-windows-sendto.jpg)
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/device/usb/windows-ie.md

@@ -0,0 +1,86 @@
+# Uploading from Internet Explorer on Windows
+
+While you're writing and testing your programs, you'll mostly be [running them
+in the simulator](/device/simulator), but once you've finished your program you
+can **compile** it and run it on your micro:bit.
+
+The basic steps are:
+
+1. Connect your micro:bit to your computer via USB
+2. Click **Download** and download the `.hex` file
+3. Copy the `.hex` file from your computer onto the micro:bit drive
+
+### ~hint
+
+You can use the [micro:bit uploader](/uploader) to automatically deploy ``.hex`` files to your micro:bit!
+![](/static/uploader/tooltip.png)
+
+### ~
+
+## Requirements
+
+You need the following things to transfer and run a script on your micro:bit:
+
+* A-Male to Micro USB cable to connect your computer to your micro:bit. This is
+    the same cable that is commonly used to connect a smart phone to a computer.
+* A PC running Windows 7 or later, or a Mac running OS X 10.6 or later
+
+## Step 1: Connect your micro:bit to your computer
+
+First, connect the micro:bit:
+
+1. Connect the small end of the USB cable to the micro USB port on your micro:bit.
+
+2. Connect the other end of the USB cable to a USB port on your computer.
+
+Your computer should recognise your micro:bit as a new drive. On computers
+running Windows, `MICROBIT` appears as a drive under Devices and drives. On a Mac
+it appears as a new drive under Devices.
+
+![](/static/mb/device/usb-windows-device.jpg)
+
+## Step 2: Download your program
+
+1. Open your project on [pxt.microbit.org](https://pxt.microbit.org)
+2. Click **Download**
+3. When prompted, choose to **save** the compiled file onto your computer. The
+   prompt will be different depending on which browser you are using, or
+   whether you are using a Windows computer or a Mac
+
+A message will appear at the bottom of the browser asking what you want to do
+with the file. Click **Save**:
+
+![](/static/mb/device/usb-windows-ie11-1.png)
+
+Then click **Open folder** and drag and drop the file from your Downloads to
+your `MICROBIT` drive.
+
+![](/static/mb/device/usb-windows-ie11-2.png)
+
+## Step 3: Transfer the file to your micro:bit
+
+* Once you've found the folder containing your `.hex` file, drag and drop it
+    onto your `MICROBIT` drive
+* If you're using Windows, you can use **Send to** as described below 
+* The LED on the back of your micro:bit flashes during the transfer (which 
+    should only take a few seconds).
+* Once transferred, the code will run automatically on your micro:bit. To rerun
+   your program, press the reset button on the back of your micro:bit. The reset 
+   button automatically runs the newest file on the micro:bit.
+
+**Send to**: If you're using Windows you use *Send to* in File Explorer:
+
+In File Explorer, right-click on the hex file (created in Step 2 above), choose **Send to**, and then **MICROBIT**.
+
+![](/static/mb/device/usb-windows-sendto.jpg)
+
+By copying the script onto the `MICROBIT` drive, you have programmed it into the
+flash memory on the micro:bit, which means even after you unplug the micro:bit,
+your program will still run if the micro:bit is powered by battery.
+
+
+### ~hint
+
+Transfer not working? See some [troubleshooting tips](/device/usb/troubleshooting).
+
+### ~

docs/docs.md

@@ -2,6 +2,31 @@
 
 ### @description Links to the documentation, reference and projects.
 
+### Things to do
+
+* **[Getting Started](/getting-started)**
+* [Projects](/projects)
+* [Examples](/examples)
+* [Lessons](/lessons)
+
+### @boardname@ reference
+
 * [The @boardname@ APIs](/reference)
+* [The @boardname@ device](/device)
+
+### Language and data reference
+
 * [Blocks language](/blocks)
 * [JavaScript language](/javascript)
+
+### More questions?
+
+* [Frequently Asked Question](/faq)
+* [Help Translate](/translate)
+* [Embedding project](/share)
+
+### Developers
+
+* [Command Line Interface](/cli)
+* Learn about [packages](/packages)
+

docs/examples.md

@@ -0,0 +1,35 @@
+# Examples
+
+Here are some fun programs for your @boardname@!
+
+## Fun stuff
+
+```codecard
+[{
+  "name": "Blinky",
+  "url":"/examples/blinky"
+},
+{
+  "name": "Name Tag",
+  "url":"/examples/name-tag"
+},
+{
+  "name": "Rando",
+  "url":"/examples/rando"
+}]
+```
+
+## Sensors
+
+```codecard
+[{
+  "name": "Plot Acceleration",
+  "url":"/examples/plot-acceleration"
+}, {
+  "name": "Plot Light Level",
+  "url":"/examples/plot-light-level"
+}, {
+  "name": "Plot Analog Pin",
+  "url":"/examples/plot-analog-pin"
+}]
+```

docs/examples/blinky.md

@@ -0,0 +1,20 @@
+# Blinky
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . # . # .
+        # # # # #
+        # # # # #
+        . # # # .
+        . . # . .`
+        );
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .`
+        );
+})
+```

docs/examples/name-tag.md

@@ -0,0 +1,7 @@
+# Name Tag
+
+```blocks
+basic.forever(() => {
+    basic.showString("JAMES")
+})
+```

docs/examples/plot-acceleration.md

@@ -0,0 +1,10 @@
+# Plot Acceleration
+
+```blocks
+basic.forever(() => {
+    led.plotBarGraph(
+        input.acceleration(Dimension.X),
+        1023
+    )
+})
+```

docs/examples/plot-analog-pin.md

@@ -0,0 +1,10 @@
+# Plot Analog Pin
+
+```blocks
+basic.forever(() => {
+    led.plotBarGraph(
+        pins.analogReadPin(AnalogPin.P0),
+        1023
+    )
+})
+```

docs/examples/plot-light-level.md

@@ -0,0 +1,10 @@
+# Plot Light level
+
+```blocks
+basic.forever(() => {
+    led.plotBarGraph(
+        input.lightLevel(),
+        255
+    )
+})
+```

docs/examples/rando.md

@@ -0,0 +1,7 @@
+# Rando
+
+```blocks
+basic.forever(() => {
+    led.toggle(Math.random(5), Math.random(5))
+})
+```

docs/faq.md

@@ -0,0 +1,14 @@
+# Frequently Asked Questions
+
+### @description Frequently asked questions and answers from our users.
+
+## Which web sites do I need to unblock for pxt.microbit.org?
+
+This is the list of domains that need to be unblocked to allow the web editor to load:
+
+* https://pxt.microbit.org
+* https://www.pxt.io
+* https://trg-microbit.userpxt.io
+* https://pxt.azureedge.net
+
+Can't find your question? Please search for solutions or open a ticket at [support.microbit.org](https://support.microbit.org)!

docs/getting-started.md

@@ -0,0 +1,43 @@
+# Getting started
+
+### @description An activity for beginners to get started with the @boardname@
+
+## ~avatar
+
+Here are some challenges for you. Arrange the blocks in the editor
+to make real programs that work!
+
+## ~
+
+Use the **Basic** drawer in the editor
+to drag out and arrange three blocks to create this program:
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        . . . . .
+        `)
+});
+```
+
+When this program runs, you will see a smiley face, then a blank
+screen, then a smiley again -- it never stops! (That's because of the
+`[basic.forever(() => {})]` block.)
+
+Click **Download** to move your program to the @boardname@! 
+Make sure to follow the instructions.
+
+### ~button /getting-started/screen
+NEXT: THE SCREEN
+### ~

docs/getting-started/buttons.md

@@ -0,0 +1,81 @@
+# Button A and button B
+
+### ~avatar avatar
+
+Buttons are great to build games!
+
+### ~
+
+This program will show the word **ANTEATER** on the LED
+screen when you press button `A`.
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    basic.showString("ANTEATER");
+});
+```
+
+#### ~hint
+
+The `[basic.showString("HI")]` block can show letters, numbers, and punctuation
+on the @boardname@ screen.
+
+#### ~
+
+Now try to unscramble these blocks in the editor so that the @boardname@
+shows **BANANA** when you press button `B`.
+
+```shuffle
+input.onButtonPressed(Button.B, () => {
+    basic.showString("BANANA");
+});
+```
+#### ~hint
+
+You can find the letter `B` by clicking the letter `A` on the
+`[input.onButtonPressed(Button.A, () => {})]` block.
+
+#### ~
+
+Click **Download** to move your program to the @boardname@!
+
+#### Your turn!
+
+Can you combine these blocks so your program shows your real name
+instead of **ANTEATER** when you press `A`, but _your secret agent
+name_ instead of **BANANA** when you press `B`?
+
+### Pins
+
+You can also use the pins as buttons.  (The pins are the holes in the
+metal stripe at the bottom of the @boardname@ board.)  For example, hold
+the ``GND`` button with one hand and touch the ``0`` pin (called
+``P0``) with your other hand to tell the @boardname@ you're pressing it.
+
+Unscramble the blocks in the editor to show a heart when you touch
+pin ``P0``.
+
+```shuffle
+input.onPinPressed(TouchPin.P0, () => {
+    basic.showLeds(`
+. # . # .
+# . # . #
+# . . . #
+. # . # .
+. . # . .`);
+});
+```
+Click **Download** to move your program to the @boardname@!
+
+## ~hint
+
+Try this experiment: find a friend and hold hands. Touch the ``GND``
+pin while your friend presses the ``P0`` pin. You should see the
+heart! The electric current is going through your bodies and across
+your handshake to make it happen!
+
+## ~
+
+### ~button /getting-started/shake
+NEXT: SHAKE
+### ~

docs/getting-started/coin-flipper.md

@@ -0,0 +1,78 @@
+# The amazing coin flipper
+
+### ~avatar avatar
+
+Are you trying to choose whether to play soccer or go to the movies
+instead, or which toppings to have on your pizza?  Build a coin
+flipping machine with the @boardname@ to choose for you!
+
+### ~
+
+Here are the blocks to make your coin flipper.  When you press button
+`B`, the coin flipper will show either `H` for heads or `T` for tails
+on the LED screen.
+
+```blocks
+input.onButtonPressed(Button.B, () => {
+    if (Math.randomBoolean()) {
+        basic.showString("H");
+    } else {
+        basic.showString("T");
+    }
+});
+```
+### ~hint
+
+The `[Math.randomBoolean()]` block randomly tells the ``if``
+block `true` or `false`.  If value picked is `true`, the
+``if`` block shows the letter `H`. Otherwise, it shows the letter `T`.
+
+That's it!
+
+### ~
+
+### Keeping score
+
+#### ~avatar
+
+To keep track out of how many guesses you've won,
+add these blocks to your coin flipper:
+
+#### ~
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1);
+});
+input.onButtonPressed(Button.AB, () => {
+    basic.showNumber(game.score());
+});
+```
+
+These blocks mean that if you press button `A`, you will add `1` to
+your score, and if you press `A` and `B` together, the @boardname@ will
+show your score.
+
+When you're done, your coin flipping program should look like this:
+
+```blocks
+input.onButtonPressed(Button.B, () => {
+    if (Math.randomBoolean()) {
+        basic.showString("H");
+    } else {
+        basic.showString("T");
+    }
+});
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1);
+});
+input.onButtonPressed(Button.AB, () => {
+    basic.showNumber(game.score());
+});
+```
+
+Flip until your thumbs get tired!
+
+### ~button /getting-started/rock-paper-scissors
+NEXT: ROCK PAPER SCISSORS
+### ~

docs/getting-started/rock-paper-scissors.md

@@ -0,0 +1,205 @@
+# Rock Paper Scissors
+
+### ~avatar avatar
+
+Build a Rock Paper Scissors game with the @boardname@!  You can play
+the game with a friend who has it on a @boardname@.  You can also play
+it with friends who are just using their hands.  (The game is built
+like a coin flipper, but with three choices instead of two.)
+
+### ~
+
+## Step 1: Getting started
+
+We want the @boardname@ to choose rock, paper, or scissors when you
+shake it.  Try creating an ``on shake`` block so when you shake the
+@boardname@, it will run part of a program.
+
+Clear up the blocks and add the blocks below.
+
+```blocks
+input.onGesture(Gesture.Shake, () => {
+    
+})
+```
+
+Next, when you shake the @boardname@, it should pick a random number from `0` to `2`
+and store it in the variable `item`.
+
+Add a ``set`` block with a variable. Then add a ``pick random`` block,
+and store the random number in the variable,
+like this:
+
+```blocks
+input.onGesture(Gesture.Shake, () => {
+    let item = Math.random(3)
+})
+
+```
+
+### ~hint
+No one can predict random numbers. That's what makes them great for Rock Paper Scissors!
+### ~
+
+Each possible number these blocks can make (`0`, `1`, or `2`) means a different picture.
+We will show the right picture for that number on the LED screen.
+
+
+## Step 2: Picking paper
+
+Put an ``if`` block after the ``let`` block that checks whether
+`item` is `0`. Make sure the ``if`` block has an ``else if`` part
+and an ``else`` part.
+
+Next, add a ``show leds`` block that shows a
+picture of a piece of paper:
+
+```blocks
+input.onGesture(Gesture.Shake, () => {
+    let item = Math.random(3)
+    if (item == 0) {
+        basic.showLeds(`
+            # # # # #
+            # . . . #
+            # . . . #
+            # . . . #
+            # # # # #
+            `)
+    } else if (false) {
+
+    } else {
+
+    }
+})
+```
+
+## Step 3: A random rock
+
+Now we are going to add a new picture for the @boardname@ to show
+when another random number comes up.
+
+Make the ``else if`` part check if the variable `item` is `1`.
+Then add a ``show leds`` block with a picture of a rock.
+
+```blocks
+input.onGesture(Gesture.Shake, () => {
+    let item = Math.random(3)
+    if (item == 0) {
+        basic.showLeds(`
+            # # # # #
+            # . . . #
+            # . . . #
+            # . . . #
+            # # # # #
+            `)
+    } else if (item == 1) {
+        basic.showLeds(`
+            . . . . .
+            . # # # .
+            . # # # .
+            . # # # .
+            . . . . .
+            `)
+    } else {
+
+    }
+})
+```
+
+## Step 4: Suddenly scissors
+
+Add a ``show leds`` block with a picture of scissors to the ``else`` part:
+
+```blocks
+input.onGesture(Gesture.Shake, () => {
+    let item = Math.random(3)
+    if (item == 0) {
+        basic.showLeds(`
+            # # # # #
+            # . . . #
+            # . . . #
+            # . . . #
+            # # # # #
+            `)
+
+    } else if (item == 1) {
+        basic.showLeds(`
+            . . . . .
+            . # # # .
+            . # # # .
+            . # # # .
+            . . . . .
+            `)
+    } else {
+        basic.showLeds(`
+            # # . . #
+            # # . # .
+            . . # . .
+            # # . # .
+            # # . . #
+            `)
+    }
+})
+
+```
+
+### ~hint
+
+You don't need to check if `item` is `2` because `2` is the only number left out of `0`, `1`, and `2`.
+That's why you can use an ``else`` instead of an ``else if``.
+
+### ~
+
+Your game is ready!
+
+Click **Download** to move your program to the @boardname@!
+
+Have fun!
+
+## Step 5: Are you the greatest?
+
+Here is a way you can make your Rock Paper Scissors game better.
+When button ``A`` is pressed, 
+the @boardname@ will add `1` to your score.
+
+Open the ``Game`` drawer, and then add the block ``change score by 1`` to your program,
+like this:
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1)
+})
+
+```
+
+## Step 6: Prove you're the greatest!
+
+After your @boardname@ can add `1` to the score, show how many wins you have.
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1)
+    basic.showString("WINS:")
+    basic.showNumber(game.score())
+})
+```
+## Step 7: Staying honest
+
+Success! Your @boardname@ can track wins!
+But what about losses? 
+Use the ``Game`` drawer to subtract `1` from your score when you press button `B`. 
+
+Here are all the blocks you will need:
+
+```shuffle
+input.onButtonPressed(Button.B, () => {
+    game.addScore(-1)
+    basic.showString("LOSSES:")
+    basic.showNumber(game.score())
+})
+```
+Click **Download** to move your program to the @boardname@!
+
+### ~button /projects
+NEXT: PROJECTS!
+### ~

docs/getting-started/screen.md

@@ -0,0 +1,92 @@
+# Screen
+
+### ~avatar avatar
+
+There are 25 bright LEDs on the @boardname@ screen. Let's use them to create some cool animations!
+
+### ~
+
+### Happy unhappy face
+
+Draw an unhappy face instead of the blank screen.  Click on the dots
+in the second `[basic.showLeds("")]` block until it matches the blocks below.
+Now you have an **animation** (cartoon) that shows a happy face,
+then an unhappy one, then a happy one again, forever (or until
+you turn off your @boardname@)!
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        . # # # .
+        # . . . #
+        `)
+});
+```
+Click **Download** to move your program to the @boardname@!
+
+### Your turn!
+
+Pile up more `[basic.showLeds("")]` blocks to create an animation! Create an
+animation with at least 5 pictures.  What does this animation show?
+
+```blocks
+basic.forever(() => {
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # # # # #
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        . # # # .
+        # . . . #
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # # # # #
+        . . . # #
+        `)
+    basic.showLeds(`
+        . . . . .
+        # . # . .
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . . # . #
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+});
+```
+Click **Download** to move your program to the @boardname@!
+
+### ~button /getting-started/buttons
+NEXT: BUTTONS
+### ~

docs/getting-started/shake.md

@@ -0,0 +1,24 @@
+# Shake
+
+You can find when someone is shaking the @boardname@ by checking its
+**accelerometer** (it finds whether the @boardname@ is speeding up or
+slowing down).
+
+Unscramble these blocks in the editor to show a frownie when someone
+shakes the @boardname@. (Ouch!)
+
+```shuffle
+input.onGesture(Gesture.Shake, () => {
+    basic.showLeds(`
+. . . . .
+. # . # .
+. . . . .
+. # # # .
+# . . . #`);
+});
+```
+Click **Download** to move your program to the @boardname@!
+
+### ~button /getting-started/coin-flipper
+NEXT: COIN FLIPPER GAME
+### ~

docs/index-ref.json

@@ -1,3 +1,3 @@
 {
-    "appref": "v1.0.25"
+    "appref": "v0.7.41"
 }

docs/lessons.md

@@ -0,0 +1,67 @@
+# Lessons 
+
+### @description Lessons to teach computer science and coding.
+
+### @short Lessons
+
+### ~column 
+
+## Beginner
+
+* [Beautiful Image](/lessons/beautiful-image), show a beautiful image with show LEDs
+* [Lucky 7](/lessons/lucky-7), show a number on the LED screen with show number
+* [Answering Machine](/lessons/answering-machine), show a text message with show string
+* [Game of Chance](/lessons/game-of-chance), show a text message with game over
+* [Smiley,](/lessons/smiley) smiley and frowney faces that transition on button pressed
+* [Magic Logo,](/lessons/magic-logo) show an image on logo up
+* [Snowflake Fall](/lessons/snowflake-fall), repeat a series of images with forever
+* [Screen Wipe](/lessons/screen-wipe), turn off the LEDs with clear screen
+* [Flashing Heart](/lessons/flashing-heart), display images with a pause
+* [Blink](/lessons/blink), turn an LED on and off with plot
+* [Night Light](/lessons/night-light), dim the LEDs with set brightness
+* [Game Counter](/lessons/game-counter), displays the player's score with score and add points to score
+* [Happy Birthday](/lessons/happy-birthday), create a popular song
+
+### ~
+
+### ~column 
+
+## Intermediate
+
+* [Magic 8](/lessons/magic-8), a fortune teller game with the @boardname@
+* [Guess the Number](/lessons/guess-the-number),  guess a random number with pick number
+* [Counter](/lessons/counter), display a number with a variable
+* [Love Meter](/lessons/love-meter), create a love meter with on pin pressed
+* [Truth or Dare](/lessons/truth-or-dare), a game that forces each player to reveal a secret or do something funny with if statement
+* [Spinner](/lessons/spinner), spin the arrow with multiple if statements
+* [Dice Roll](/lessons/dice-roll), spin with more if statements
+* [Looper](/lessons/looper), display a series of numbers with a for loop index
+* [Strobe Light](/lessons/strobe-light), develop shapes with a nested for loops
+* [Temperature](/lessons/temperature), get the ambient temperature (degree Celsius °C)
+* [Digi Yoyo](/lessons/digi-yoyo), create a counter with a while loop
+* [Rotation Animation](/lessons/rotation-animation), control an animation with a boolean variable
+* [Compass](/lessons/compass), displays the direction the @boardname@ is pointing with compass
+* [Zoomer](/lessons/zoomer), measure the force with acceleration
+* [Glowing Pendulum](/lessons/glowing-pendulum), construct a pendulum that glows using acceleration
+* [Classic Beatbox](/lessons/classic-beatbox), make a beatbox music player with variables
+
+### ~
+
+### ~column 
+
+## Maker
+* [Pogo](/lessons/pogo), create a pogo game to test your jumping abilities
+
+## Science
+* [Charting](/lessons/charting), measure and chart acceleration
+* [Seismograph](/lessons/seismograph), create a seismograph with household items
+
+## Advanced
+* [Prank WiFi](/lessons/prank-wifi), create fake WiFi to trick your friends
+* [Speed Button](/lessons/speed-button), code a speed game with running time
+* [Headbands](/lessons/headbands), create a charades game with a collection of strings that hold the words
+* [Hero](/lessons/hero), reconstruct the classic arcade game pac man with the @boardname@
+* [Catch the Egg](/lessons/catch-the-egg-game), catch falling eggs in a basket with an acceleration controller
+### ~
+
+### @section full

docs/lessons/answering-machine.md

@@ -0,0 +1,32 @@
+# answering machine blocks lesson
+
+Create an answering machine on the @boardname@
+
+## Topic
+
+Show String
+
+## Quick Links
+
+* [activity](/lessons/answering-machine/activity)
+* [quiz](/lessons/answering-machine/quiz)
+* [quiz answers](/lessons/answering-machine/quiz-answers)
+* [challenges](/lessons/answering-machine/challenges)
+
+
+## Prior learning / place of lesson in scheme of work
+
+Learn how to creating a message with a **string**, `show string` to write your message. We will be learning how to create a message using simple commands, such as show string and on button pressed.
+
+## Documentation
+
+```cards
+basic.showString('Hi!')
+input.onButtonPressed(Button.A, () => {})
+```
+
+## Objectives
+
+* learn how to show a string on the LED screen one character at a time
+* learn how to use to register an event handler that will execute whenever an input button is pressed
+

docs/lessons/answering-machine/activity.md

@@ -0,0 +1,23 @@
+# answering machine blocks activity
+
+Learn to create an answering machine on the @boardname@ 
+
+### ~avatar avatar
+
+
+Let's learn how to create an answering machine!
+
+### ~
+
+We will use `show string` to show text on the LED screen. *String* is a common name for *text* in programming languages. The function `show string` scrolls the text column by column at a *150* milliseconds interval.
+
+```blocks
+basic.showString("ASK ME A QUESTION")
+```
+
+### ~avatar boothing
+
+Excellent, you're ready to continue with the [challenges](/lessons/answering-machine/challenges)!
+
+### ~
+

docs/lessons/answering-machine/challenges.md

@@ -0,0 +1,45 @@
+# answering machine blocks challenges
+
+Coding challenges for the answering machine tutorial. 
+
+## Before we get started
+
+Complete the [answering machine](/lessons/answering-machine/activity) activity and your code will look like this:
+
+```blocks
+basic.showString("ASK ME A QUESTION")
+```
+
+### Challenge 1
+
+Now we need to reply after someone asks @boardname@ a  yes or no question. We want to respond `YES` when button `A` is pressed. Add a condition for button `A` and inside it show the string `YES`.
+
+```blocks
+basic.showString("ASK ME A QUESTION")
+input.onButtonPressed(Button.A, () => {
+    basic.showString("Yes")
+})
+```
+
+* `Run` the code to see if it works as expected.
+
+### Challenge 2
+
+What if @boardname@'s answer to the question is no? Let's have `NO` be displayed when button `B` is pressed. Add a condition for button `B` and inside it show the string `NO`.
+
+```blocks
+basic.showString("ASK ME A QUESTION")
+input.onButtonPressed(Button.A, () => {
+    basic.showString("Yes")
+})
+input.onButtonPressed(Button.B, () => {
+    basic.showString("NO")
+})
+
+```
+
+* `Run` the code to see if it works as expected.
+
+### Challenge 3
+
+When you are asked a yes or no question, do you always say yes or no? Add a condition for `on shake` that displays `MAYBE`.

docs/lessons/answering-machine/quiz-answers.md

@@ -0,0 +1,38 @@
+# answering machine blocks quiz answers
+
+Create an answering machine on the @boardname@.
+
+This is the answer key for the [answering machine quiz](/lessons/answering-machine/quiz).
+
+## 1. Define what `show string` does?
+
+Answers may vary. This is a function that will show a string on the LED screen one character at a time (scrolling from left to right).
+
+## 2. Draw which LED is ON after running this code
+
+```blocks
+basic.showString("Y")
+```
+
+![](/static/mb/lessons/answering-machine-0.png)
+
+## 3. Draw which LED is ON after running this code
+
+
+```blocks
+basic.showString("Hi")
+```
+
+![](/static/mb/lessons/answering-machine-1.png)
+
+
+## 4. If the rectangle below represents the @boardname@, write the code to display the letter "Z".
+
+![](/static/mb/lessons/answering-machine-2.png)
+
+
+```blocks
+basic.showString("Z")
+```
+
+

docs/lessons/answering-machine/quiz.md

@@ -0,0 +1,46 @@
+# answering machine blocks quiz
+
+Create an answering machine on the @boardname@.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [answering machine activity](/lessons/answering-machine/activity).
+
+Answer the questions while completing the activity. Pay attention to the dialogues!
+
+## 1. Define what `show string` does? 
+
+
+
+## 2.  Draw which LED is ON after running this code
+
+
+```blocks
+basic.showString("Y")
+
+```
+
+![](/static/mb/empty-microbit.png)
+
+
+## 3.  Draw which LED is ON after running this code
+
+
+```blocks
+basic.showString("Hi")
+
+```
+
+
+![](/static/mb/lessons/answering-machine-4.png)
+
+## 4. If the rectangle below represents the @boardname@, write the code to display the letter "Z".
+
+```blocks
+basic.showString("Z")
+
+```
+
+

docs/lessons/beautiful-image.md

@@ -0,0 +1,36 @@
+# beautiful image lesson
+
+Display beautiful images on the @boardname@.
+
+## Topic
+
+Show LEDs
+
+## Quick Links
+
+* [activity](/lessons/beautiful-image/activity)
+* [challenges](/lessons/beautiful-image/challenges)
+
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to **show LEDs**,  to show an image on the @boardname@'s LED screen. We will be learning how to Show LEDs using simple commands such as Show LEDs and pause.
+
+## Documentation
+
+```cards
+basic.showLeds(`
+    . . . . .
+    . . . . .
+    . . # . .
+    . . . . .
+    . . . . .
+    `)
+basic.pause(100)
+```
+
+## Objectives
+
+* learn how to display an image on the @boardname@'s LED screen
+* learn how to pause your code for the specified number of milliseconds
+

docs/lessons/beautiful-image/activity.md

@@ -0,0 +1,28 @@
+# beautiful image blocks activity
+
+Generate and show a beautiful image.
+
+### ~avatar avatar
+
+Let's learn how to show an image on the LED screen.
+
+### ~
+
+We will use *show LEDs* to draw an image on the LED screen. This function immediately writes on the screen.
+
+```blocks
+basic.showLeds(`
+    # # # # #
+    # # . # #
+    # . # . #
+    # # . # #
+    # # # # #
+    `)
+```
+
+### ~avatar boothing
+
+Excellent, you're ready to continue with the [challenges](/lessons/beautiful-image/challenges)!
+
+### ~
+

docs/lessons/beautiful-image/challenges.md

@@ -0,0 +1,45 @@
+# beautiful image blocks challenges
+
+Coding challenges for the beautiful image tutorial. 
+
+## Before we get started
+
+Complete the [beautiful image](/lessons/beautiful-image/activity) activity and your code will look like this:
+
+```blocks
+basic.showLeds(`
+    # # # # #
+    # # . # #
+    # . # . #
+    # # . # #
+    # # # # #
+    `)
+```
+
+### Challenge 1
+
+Now show an new image that will display on the @boardname@.
+
+```blocks
+basic.showLeds(`
+    # # # # #
+    # # . # #
+    # . # . #
+    # # . # #
+    # # # # #
+    `)
+basic.showLeds(`
+    # . # . #
+    . # # # .
+    . . # . .
+    . # # # .
+    # . # . #
+    `)
+```
+
+* Does your code work as expected?
+
+### Challenge 2
+
+Nice job! Why don't we create a third image that will show after the other two?
+

docs/lessons/beautiful-image/tutorial.md

@@ -0,0 +1,48 @@
+# beautiful image blocks challenges
+
+Beautiful Image tutorial. 
+
+### ~avatar avatar
+
+### @video td/videos/beautiful-image-0
+
+Rebuild the game!
+
+The blocks have been shuffled! Put them back together so that…
+
+* display images on the screen with show LEDs
+
+
+```shuffle
+basic.showLeds(`
+    # # # # #
+    # # . # #
+    # . # . #
+    # # . # #
+    # # # # #
+    `)
+basic.showLeds(`
+    # . # . #
+    . # # # .
+    . . # . .
+    . # # # .
+    # . # . #
+    `)
+basic.pause(100)
+```
+
+Hints and tips
+
+Cut out these documentation cards to help you!
+
+```cards
+basic.showLeds(`
+    . . . . .
+    . . . . .
+    . . # . .
+    . . . . .
+    . . . . .
+    `)
+basic.pause(100)
+
+```

docs/lessons/blink.md

@@ -0,0 +1,36 @@
+# blink blocks lesson
+
+Learn how to create a blinking LED.
+
+## Topic
+
+Plot
+
+## Quick links
+
+* [activity](/lessons/blink/activity)
+* [quiz](/lessons/blink/quiz)
+* [quiz answers](/lessons/blink/quiz-answers)
+* [challenges](/lessons/blink/challenges)
+
+
+## Prior learning / place of lesson in scheme of work 
+
+Learn how to control a blinking LED. We will be learning how to create a blinking app using forever as well as simple commands, such as plot, unplot and pause.
+
+
+## Documentation
+
+```cards
+led.plot(0, 0)
+led.unplot(0, 0)
+basic.pause(100)
+basic.forever(() => {})
+```
+
+## Objectives
+
+* learn how to turn on LED lights on the LED screen
+* learn how to turn off LED lights on the LED screen
+* learn how to pause program execution for the specified number of milliseconds
+

docs/lessons/blink/activity.md

@@ -0,0 +1,61 @@
+# blink blocks activity
+
+Turn an LED on and off with forever 
+
+### ~avatar avatar
+
+```sim
+basic.forever(() => {
+    led.plot(2, 2)
+    basic.pause(500)
+    led.unplot(2, 2)
+    basic.pause(500)
+})
+```
+Let's build a blinking light!
+
+### ~
+
+Have you ever tried to blink a flashlight at night? The concept is fairly simply: turn on the light, wait for a little, turn off the light, wait again, and repeat. That's exactly what we need to code to get a blinking LED.
+
+Let's start by adding a line of code that turns on the LED at position 2, 2.
+
+```blocks
+led.plot(2, 2)
+```
+
+Run your script to make sure it's correct. Then, let's add code to `pause` 500 milliseconds and turn off the LED.
+
+```blocks
+led.plot(2, 2)
+basic.pause(500)
+led.unplot(2,2)
+```
+
+We've got the LED blinking once. Let's add another pause and turn on the LED again.
+
+```blocks
+led.plot(2, 2)
+basic.pause(500)
+led.unplot(2, 2)
+basic.pause(500)
+led.plot(2, 2)
+```
+
+The current code works but it only blinks once! We are going to use a `forever` loop and move the code inside it to repeat it forever. We've dropped the second `plot` line since we don't need it in the loop.
+
+```blocks
+basic.forever(() => {
+    led.plot(2, 2)
+    basic.pause(500)
+    led.unplot(2, 2)
+    basic.pause(500)
+})
+```
+
+### ~avatar boothing
+
+Excellent, you're ready to continue with the [challenges](/lessons/blink/challenges)!
+
+### ~
+

docs/lessons/blink/challenges.md

@@ -0,0 +1,79 @@
+# blink blocks challenges
+
+Coding challenges for the blink tutorial 
+
+## Before we get started
+
+Complete the [blink](/lessons/blink/activity) activity and your code will look like this:
+
+```blocks
+basic.forever(() => {
+    led.plot(2, 2)
+    basic.pause(500)
+    led.unplot(2, 2)
+    basic.pause(500)
+})
+```
+
+### Challenge 1
+
+Let's display a "smiley face" on the screen! We'll start by plotting the eyes.
+
+Add `plot(1,1)` and `plot(3,1)` under `plot(2,2)` ; then add `unplot(1,1)`, `unplot(3,1)` and `unplot(2,2)` after `pause`. When you're ready, don't forget to run your code to try it out!
+
+```blocks
+basic.forever(() => {
+    led.plot(2, 2)
+    led.plot(1, 1)
+    led.plot(3, 1)
+    basic.pause(500)
+    led.unplot(2, 2)
+    led.unplot(1, 1)
+    led.unplot(3, 1)
+    basic.pause(500)
+})
+```
+
+### Challenge 2
+
+Let's add the code to plot the mouth by using `plot` and `unplot` to the following coordinates: (1,4), (2,4) and (3,4). When you're ready, don't forget to run your code to try it out!
+
+```blocks
+basic.forever(() => {
+    led.plot(2, 2)
+    led.plot(1, 1)
+    led.plot(3, 1)
+    led.plot(1, 4)
+    led.plot(2, 4)
+    led.plot(3, 4)
+    basic.pause(500)
+    led.unplot(2, 2)
+    led.unplot(1, 1)
+    led.unplot(3, 1)
+    led.unplot(1, 4)
+    led.unplot(2, 4)
+    led.unplot(3, 4)
+    basic.pause(500)
+})
+```
+
+### Challenge 3
+
+Let's keep using `plot` to convert the mouth into a smiley face.
+
+```` bitmatrix
+0 0 0 0 0
+0 1 0 1 0
+0 0 1 0 0
+1 0 0 0 1
+0 1 1 1 0
+````
+
+### Challenge 4
+
+Let's make it blink a bit faster. To do so, we need to reduce the amount of time used in ``pause`` to 100 milliseconds.
+
+### Challenge 5
+
+Create your own image by changing the coordinates in `plot` and `unplot`!
+

docs/lessons/blink/quiz-answers.md

@@ -0,0 +1,49 @@
+# blink blocks quiz answers
+
+Learn how to create a blinking LED script.
+
+This is the answer key for the [blink quiz](/lessons/blink/quiz).
+
+## 1. Describe what `plot` does?
+
+Answers will vary. In general, plot refers to the code that turns on a specific LED. We specify the LED using x, y coordinates.
+
+## 2. Draw which LED is ON after running this code
+
+```blocks
+led.plot(2, 2)
+
+```
+
+![](/static/mb/lessons/blink-0.png)
+
+By default, the position of an LED on *Blink Tutorial* is set to the centre of the screen. This code turns on the centre LED
+
+## 3. Draw which LED is ON after running this code
+
+```blocks
+led.plot(0, 0)
+
+```
+
+![](/static/mb/lessons/blink-1.png)
+
+This code turns on specific LED. Plot turns on the specified LED on the LED screen. We specify the LED using x, y coordinates.
+
+* ``x`` - the x coordinate or horizontal position (0)
+* ``y`` - the y coordinate or vertical position (0)
+
+## 4. Draw which LED is ON after running this code
+
+```blocks
+led.plot(4, 4)
+
+```
+
+![](/static/mb/lessons/blink-2.png)
+
+This code turns on specific LED. Plot turns on the specified LED on the LED screen. We specify the LED using ``x``, ``y`` coordinates.
+
+* ``x`` - the x coordinate or horizontal position (4)
+* ``y`` - the y coordinate or vertical position (4)
+

docs/lessons/blink/quiz.md

@@ -0,0 +1,45 @@
+# blink blocks quiz
+
+Learn how to create a blinking LED script.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [blink activity](/lessons/blink/activity).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Describe what `plot` does?
+
+
+
+## 2. Draw which LED is ON after running this code
+
+```blocks
+led.plot(2, 2)
+
+```
+
+![](/static/mb/empty-microbit.png)
+
+## 3. Draw which LED is ON after running this code
+
+```blocks
+led.plot(0, 0)
+
+```
+
+![](/static/mb/empty-microbit.png)
+
+## 4. Draw which LED is ON after running this code
+
+
+```blocks
+led.plot(4, 4)
+
+```
+
+
+![](/static/mb/empty-microbit.png)
+

docs/lessons/blocks-conditions.md

@@ -0,0 +1,62 @@
+# blocks - if statements
+
+An introduction to conditions for the Block Editor.
+
+## Introduction to conditions
+
+In the introduction to code, we made the @boardname@ automatically shows the message ‘hello world!’:
+
+```blocks
+basic.showString("hello world!")
+```
+
+This statement, or code, will happen as soon as the @boardname@ is activated. This means it is unconditional. We can add a condition to make code function in certain ways:
+
+* A calculator waits for the user in input numbers and a function, before outputting a result
+* A game waits for the user to press a button at the right time before outputting their score
+* A quiz waits for the user to choose the correct option, and if they are wrong the quiz will tell the user
+
+In programming we use an ‘if’ statement: if this condition is met, do something. Lets add an if statement to the code we had before; the @boardname@ will wait for the user to press a button before showing the image.
+
+```blocks
+basic.forever(() => {
+    if (input.buttonIsPressed(Button.A)) {
+        basic.showString("hello world!")
+    }
+})
+```
+
+Again, test the code in the simulator. Try clicking **Button A** to display the "hello, world!" message every time the `button is pressed`.
+
+### More 'if' statements
+
+You could now add additional conditions to your 'if statement'. Here are some ideas:
+
+* Change the 'get button' to ask for button B
+* Add another 'if' statement within the current one, and make it so both buttons must be pressed to show the message
+* Create a mini quiz that asks for one button to be pressed which represents an answer
+
+## Else
+
+What if the user does not press a button? What if the user presses the wrong button? We call this an else, because if the criteria of the if statement are not met then something else is done.
+
+For example, we could make it so our @boardname@ tells us to press the A button. Remove the `button pressed` and `show string` blocks from the `if` block and right click it and select **Delete**. Now click the **If** category and drag out an `else if` block. Plug the `button pressed` and `show string` blocks in the correct places.
+
+We want the message "Press A!" to scroll across the @boardname@, so right-click the `show string` block and select **Duplicate**. Drag this new block into the `else` section and replace the “hello, world!” with "Press A!". Your code should look like this:
+
+```blocks
+basic.forever(() => {
+    if (input.buttonIsPressed(Button.A)) {
+        basic.showString("hello world!")
+    } else {
+        basic.showString("PRESS A")        
+    }
+})
+```
+
+So, to recap: the `forever` block makes sure our code runs forever. The @boardname@ checks if the user is pressing the left button, if the user is not then the “Press the button!” message will scroll across the LEDs. If the user is pressing the button then the “hello, world!” message will scroll across the screen. Check this in the simulator or attach the @boardname@ to the computer then click **Download** to send the code onto the @boardname@.
+
+## What is a condition?
+
+A condition is criteria that the user must meet for a certain function to be carried out.
+

docs/lessons/bop-it/activity.md

@@ -0,0 +1,86 @@
+# bop it challenges
+
+a game similar to "Simon Says" with the @boardname@.
+
+## Before we get started
+
+Complete the following guided tutorial. Your code should look like this:
+
+```typescript
+let action  = 0;
+function newAction() {}
+input.onButtonPressed(Button.A, () => {
+    if (action == 0) {
+        game.addScore(1);
+        newAction();
+    }
+})
+input.onLogoDown(() => {
+    if (action == 1) {
+        game.addScore(1);
+        newAction();
+    }
+}) 
+input.onGesture(Gesture.Shake, () => {
+    if (action == 2) {
+        game.addScore(1);
+        newAction();
+    }
+}) 
+input.onButtonPressed(Button.B, () => {
+    basic.showNumber(game.score(), 150);
+    basic.pause(2000);
+    newAction();
+}) 
+```
+
+### Challenge 1
+
+Now let's add some more types of instructions for the player to follow. Let's add `PRESS PIN 0`. 
+Change the global variable `action` to `math->random(4)` so that we can add a new **IF** statement that checks if `action=3`. If it does, display instructions to press pin 0.
+
+```typescript
+let action  = 0;
+export function newAction() {
+    action = Math.random(4)
+    if (action == 0) {
+        basic.showString("PUSH A", 150) // ***
+    }
+    if (action == 1) {
+        basic.showString("LOGO DOWN", 150) // ***
+    }
+    if (action == 2) {
+        basic.showString("SHAKE", 150) // ***
+    }
+    if (action == 3) {
+        basic.showString("PRESS PIN 0", 150) // ***
+    }
+}
+```
+
+### Challenge 2
+
+Now let's implement `PRESS PIN 0` in the main. Create a condition of `input->on pin pressed("P0")` that will add one to the score and calls the method `new action`.
+
+```typescript
+let action  = 0;
+export function newAction() {
+    // ...
+}
+input.onButtonPressed(Button.B, () => {
+    basic.showNumber(game.score(), 150)
+    basic.pause(2000)
+    newAction()
+})
+input.onPinPressed(TouchPin.P0, () => {
+    if (action == 3) {
+        game.addScore(1)
+        newAction()
+    }
+})
+```
+
+### Challenge 3
+
+Add `POINT ME NORTH` to the list of possible commands.
+

docs/lessons/bop-it/quiz-answers.md

@@ -0,0 +1,77 @@
+# bop it quiz answers
+
+a game where you have to keep up with the commands.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [bop it activity](/lessons/bop-it/activity).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Write the code that will store the global variable named 'action' and returns a random number between 0 and 2
+
+```blocks
+let action = Math.random(3)
+```
+
+## 2. Write the code that will display the string, "PUSH A" if the global variable called 'action' is equal to 0
+
+```blocks
+let action = Math.random(3)
+if (action == 0) {
+    basic.showString("PUSH A", 150)
+}
+```
+
+## 3. Write the code that increments the score if button A is pressed when the global variable called 'action' is equal to 1
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    let action = Math.random(3)
+    if (action == 0) {
+        game.addScore(1)
+    }
+})
+```
+
+## 4. Write the code that will display the string "LOGO DOWN" if the global variable called 'action' is equal to 1
+
+```blocks
+let action = Math.random(3)
+if (action == 1) {
+    basic.showString("LOGO DOWN", 150)
+}
+```
+
+## 5. Write the code that increments the score if the @boardname@ logo is tilted down when the global variable called 'action' is equal to 1
+
+```blocks
+input.onLogoDown(() => {
+    let action = Math.random(3)
+    if (action == 1) {
+        game.addScore(1)
+    }
+})
+```
+
+## 6. Write the code that will display the string "SHAKE" if the global variable called 'action' is equal to 2
+
+```blocks
+let action = Math.random(3)
+if (action == 2) {
+    basic.showString("SHAKE", 150)
+}
+```
+
+## 7. Write the code that increments the score if the @boardname@ is shaken when the global variable called 'action' is equal to 2
+
+```blocks
+input.onLogoDown(() => {
+    let action = Math.random(3)
+    if (action == 1) {
+        game.addScore(1)
+    }
+})
+```

docs/lessons/bop-it/quiz.md

@@ -0,0 +1,38 @@
+# bop it quiz 
+
+a game where you have to keep up with the commands.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [bop it activity](/lessons/bop-it/activity).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+### 1. Write the code that will store the global variable named 'action' and returns a random number between 0 and 2
+
+<br/>
+
+### 2. Write the code that will display the string, "PUSH A" if the global variable called 'action' is equal to 0
+
+<br />
+
+### 3. Write the code that increments the score if button A is pressed when the global variable called 'action' is equal to 1
+
+<br />
+
+### 4. Write the code that will display the string "LOGO DOWN" if the global variable called 'action' is equal to 1
+
+<br />
+
+### 5. Write the code that increments the score if the @boardname@ logo is tilted down when the global variable called 'action' is equal to 1
+
+<br />
+
+### 6. Write the code that will display the string "SHAKE" if the global variable called 'action' is equal to 2
+
+<br />
+
+### 7. Write the code that increments the score if the @boardname@ is shaken when the global variable called 'action' is equal to 2
+

docs/lessons/catch-the-egg-game.md

@@ -0,0 +1,51 @@
+# catch the egg game lesson
+
+A game to catch eggs in a basket.
+
+## Topic
+
+Variables
+
+## Quick Links
+
+* [activity](/lessons/catch-the-egg-game/activity)
+* [tutorial](/lessons/catch-the-egg-game/tutorial)
+* [quiz](/lessons/catch-the-egg-game/quiz)
+* [quiz answers](/lessons/catch-the-egg-game/quiz-answers)
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to create a catch the egg game game with **plot**, `led->plot` , **unplot**, `led->unplot`, and **acceleration**  `input -> acceleration` to turn on and off LED lights on the LED screen. We will be learning how to create a catch the egg game app using global variables, forever loop, local variable, input acceleration, math min, math max, math random, math mod, if (conditionals), game library as well as simple commands, such as led plot, led unplot, and pause.
+
+## Documentation
+
+```cards
+let x = 2;
+led.unplot(0, 0);
+basic.forever(() => {});
+x += 1;
+led.plot(0, 0);
+basic.pause(300);
+input.acceleration(Dimension.X);
+Math.min(0,0);
+Math.max(0,1);
+Math.random(5);
+game.addScore(1);
+game.score();
+game.removeLife(1);
+```
+
+## Objectives
+
+* learn how to create a variable as a place where you can store data so that you can use it later in your code, accessible across functions and in nested code blocks
+* learn how to repeat code in the background forever
+* learn how to turn off a LED light on the LED screen
+* learn how to turn on a LED light on the LED screen
+* learn how to learn how to conditionally run code depending on whether a condition is true or not
+* learn how to learn how to get the acceleration value (g-force), in one of three specified dimensions
+* learn how to return the smaller of two numbers
+* learn how to return the larger of two numbers
+* learn how to return a random number
+* learn how to return the modulus
+* learn how to show a number of the @boardname@ screen
+* learn how to pause your code for the specified number of milliseconds

docs/lessons/catch-the-egg-game/activity.md

@@ -0,0 +1,148 @@
+# catch the egg game challenges
+
+## Before we get started
+
+Your starting code should look like this:
+
+```blocks
+let basketX = 2
+let eggX = 2
+let eggY = 0
+basic.forever(() => {
+    led.unplot(basketX, 4)
+    led.unplot(eggX, eggY)
+    eggY = eggY + 1
+    led.plot(eggX, eggY)
+    basic.pause(300)
+    let accX = input.acceleration(Dimension.X)
+    basketX = 2 + Math.min(2, Math.max(-2, accX / 200))
+    led.plot(basketX, 4)
+    if (eggY > 4) {
+        eggY = -1
+        eggX = Math.random(5)
+    }
+    basic.pause(300)
+})
+```
+
+### ~avatar avatar impressed
+
+### Challenge 1
+
+Let's use an **IF** statement to detect if the egg and the basket are lined up.
+
+Now that we know when an egg is caught, we can keep track of the score! We need to use the `add score` function built into the game library to add `1` point for every egg that is caught. However, let's not forget to `remove life` if an egg falls off the display before it's caught!
+
+### ~
+
+```blocks
+let basketX1 = 2
+let eggX1 = 2
+let eggY1 = 0
+basic.forever(() => {
+    led.unplot(basketX1, 4)
+    led.unplot(eggX1, eggY1)
+    eggY1 = eggY1 + 1
+    led.plot(eggX1, eggY1)
+    basic.pause(300)
+    let accX = input.acceleration(Dimension.X)
+    basketX1 = 2 + Math.min(2, Math.max(-2, accX / 200))
+    led.plot(basketX1, 4)
+    if (eggY1 > 4) {
+        eggY1 = -1
+        eggX1 = Math.random(5)
+    }
+    if (eggY1 == 4) {
+        if (basketX1 == eggX1) {
+            game.addScore(1) 
+        } else {
+            game.removeLife(1)
+        }
+    }
+    basic.pause(300)
+})
+```
+
+* Press the `run` button to test out your game.
+
+### ~avatar avatar encourage
+
+### Challenge 2
+
+Catching eggs gets easier with practice so let's make the eggs fall faster every 5 catches. We can do this by tracking how long the egg pauses in each position while falling with a global variable called **falling pause**. Let's create this variable and set it to `300` initially. Don't forget to also create a condition that will be true every 5 catches.
+
+### ~
+
+```blocks
+let basketX2 = 2
+let eggX2 = 2
+let eggY2 = 0
+let fallingPause = 300 // ***
+basic.forever(() => {
+    led.unplot(basketX2, 4)
+    led.unplot(eggX2, eggY2)
+    eggY2 = eggY2 + 1
+    led.plot(eggX2, eggY2)
+    basic.pause(300)
+    let accX2 = input.acceleration(Dimension.X)
+    basketX2 = 2 + Math.min(2, Math.max(-2, accX2 / 200))
+    led.plot(basketX2, 4)
+    if (eggY2 > 4) {
+        eggY2 = -1
+        eggX2 = Math.random(5)
+    }
+    if (eggY2 == 4) {
+        if (basketX2 == eggX2) {
+            game.addScore(1)
+            if (game.score() %5 == 0) {
+            }
+        } else {
+            game.removeLife(1)
+        }
+    }
+    basic.pause(300)
+})
+```
+
+### ~avatar avatar surprised
+
+### Challenge 3
+
+Let's make the egg fall faster by decreasing the amount of time it pauses in each position by decreasing **falling pause** by `25` every 5 catches. Now, instead of pausing for 300 milliseconds we can pause for the value of **falling pause**.
+
+```blocks
+let basketX3 = 2
+let eggX3 = 2
+let eggY3 = 0
+let fallingPause1 = 300
+basic.forever(() => {
+    led.unplot(basketX3, 4)
+    led.unplot(eggX3, eggY3)
+    eggY3 = eggY3 + 1
+    led.plot(eggX3, eggY3)
+    basic.pause(300)
+    let accX3 = input.acceleration(Dimension.X)
+    basketX3 = 2 + Math.min(2, Math.max(-2, accX3 / 200))
+    led.plot(basketX3, 4)
+    if (eggY3 > 4) {
+        eggY3 = -1
+        eggX3 = Math.random(5)
+    }
+    if (eggY3 == 4) {
+        if (basketX3 == eggX3) {
+            game.addScore(1)
+            if (game.score()% 5 == 0) {
+                fallingPause1 = fallingPause1 - 25 // ***
+            }
+        } else {
+            game.removeLife(1)
+        }
+    }
+    basic.pause(fallingPause1) 
+})
+
+```
+
+Fantastic! Your game is now ready to show off.
+
+* Press the `run` button to see your finished game!

docs/lessons/catch-the-egg-game/quiz-answers.md

@@ -0,0 +1,58 @@
+# catch the egg game quiz answers
+
+Programming a game of catch the egg using the accelerometer 
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [catch the egg activity](/lessons/catch-the-egg-game/activity)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Write the data type for the global variables 'basket' and 'egg'.
+
+<br/>
+
+'Basket' and 'egg' are stored as **Number**.
+
+## 2. Write the code to plot the initial position of the egg and the basket using the variables 'egg x', 'egg y', and 'basket x'. The code should arrange the egg and basket as shown below.
+
+![](/static/mb/lessons/catch-the-egg-game-0.png)
+
+<br/>
+
+```blocks
+let basketX = 2
+let eggX = 2
+let eggY = 0
+led.plot(eggX, eggY)
+led.plot(basketX, 4)
+```
+
+## 3. Write the three lines of code that moves the egg down. (You need to unplot the egg's current position, update its position variables, and plot its new position.
+
+<br/>
+
+```blocks
+let basketX = 2
+let eggX = 2
+let eggY = 0
+led.unplot(eggX, eggY)
+eggY = eggY + 1
+led.plot(eggX, eggY)
+```
+
+## 4. . Write the code that resets the egg after it has fallen past the bottom of the @boardname@.
+
+<br/>
+
+```blocks
+let eggX = 2
+let eggY = 0
+if (eggY > 4) {
+    eggY = -1
+    eggX = Math.random(5)
+}
+```
+

docs/lessons/catch-the-egg-game/quiz.md

@@ -0,0 +1,30 @@
+# catch the egg game quiz
+
+Programming a game of catch the egg using the accelerometer.
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [catch the egg challenges](/lessons/catch-the-egg-game/activity)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Write the data type for the variables 'basket' and 'egg'.
+
+<br/>
+
+## 2. Write the code to plot the initial position of the egg and the basket using the variables 'egg x', 'egg y', and 'basket x'. The code should arrange the egg and basket as shown below.
+
+![](/static/mb/lessons/catch-the-egg-game-0.png)
+
+<br/>
+
+## 3. Write the three lines of code that moves the egg down. (You need to unplot the egg's current position, update its position variables, and plot its new position.
+
+<br/>
+
+## 4. Write the code that resets the egg after it has fallen past the bottom of the @boardname@.
+
+<br/>
+

docs/lessons/catch-the-egg-game/tutorial.md

@@ -0,0 +1,29 @@
+# catch the egg game tutorial
+
+### Rebuild the game!
+
+The blocks have been shuffled! Put them back together so that...
+* an egg LED  falls from the top of the screen, row by row.
+* a basket LED is on the bottom row and can be moved by using the accelerometer `X` data.
+* if the egg LED reaches the last row, reset the egg position to the first row.
+
+```shuffle
+let basketX = 2
+let eggX = 2
+let eggY = 0
+basic.forever(() => {
+    led.unplot(basketX, 4)
+    led.unplot(eggX, eggY)
+    eggY = eggY + 1
+    led.plot(eggX, eggY)
+    basic.pause(300)
+    let accX = input.acceleration(Dimension.X)
+    basketX = 2 + Math.min(2, Math.max(-2, accX / 200))
+    led.plot(basketX, 4)
+    if (eggY > 4) {
+        eggY = -1
+        eggX = Math.random(5)
+    }
+    basic.pause(300)
+})
+```

docs/lessons/charting.md

@@ -0,0 +1,36 @@
+# charting lesson
+
+Create a charting app for simulating and measuring the acceleration applied to the @boardname@
+
+## Topic
+
+Acceleration
+
+## Quick Links
+* [activity](/lessons/charting/activity)
+* [challenge](/lessons/charting/challenge)
+* [quiz](/lessons/charting/quiz)
+* [answers](/lessons/charting/quiz-answers)
+
+## Prior learning/place of lesson in scheme of work
+
+Learn the functions of **on data received**, **send number** and **receive number** and chart `plot bar graph` for `acceleration` in the "x" dimension.
+
+## Documentation
+
+```cards
+input.acceleration(Dimension.X)
+led.plotBarGraph(0, 1023)
+basic.showNumber(0)
+radio.onDataPacketReceived(() => {})
+radio.sendNumber(0)
+```
+
+## Objectives
+
+* learn how to repeat code in the background forever
+* learn how to get the acceleration value (g-force), in one of three specified dimensions
+* learn how to display a vertical bar graph based on the value and high value.
+* learn how to register code to run when a packet is received over radio
+* learn how to broadcast a number data packet to other @boardname@s connected via radio
+* learn how to read the next radio packet as a number data packet

docs/lessons/charting/activity.md

@@ -0,0 +1,68 @@
+# Activity 
+
+Measure the acceleration on the @boardname@ in the "x" direction. 
+
+### ~avatar avatar
+
+Welcome! This activity will teach how to use the @boardname@ to chart the acceleration in the "x" direction. Let's get started!
+
+
+### ~
+Let's measure `acceleration (mg)` in the "x" direction. Get the acceleration value (milli g-force), in one of three specified dimensions.
+
+
+```blocks
+input.acceleration(Dimension.X)
+```
+
+### ~
+Use the plot bar chart to visualize the acceleration on the LED screen of the @boardname@ in the specified range. You implement plot Bar Graph to display a vertical bar graph based on the "value" and "high" value. Then you must insert acceleration in the X dimension to measure the acceleration. 
+
+```blocks
+basic.forever(() => {
+    led.plotBarGraph(input.acceleration(Dimension.X), 0)
+})
+
+```
+
+### ~
+Notice that moving the @boardname@ in the simulator from left to right (x direction) changes the values beneath the @boardname@ in a range from 1023 to -1023 as measured in milli-gravities. By hovering over the @boardname@ from left to right, you can observe changing values beneath the @boardname@ simulator. Also, the LEDs shown on the Bar Graph fluctates based on the movement of the @boardname@ simulator in the x direction. The line underneath the @boardname@ simulator reflect the acceleration in the x direction. 
+
+NOTE: The colors of the charts reflect the color of the @boardname@ simulator. In this instance, the @boardname@ is yellow. So the color of the data line reflects the color of the @boardname@
+
+![](/static/mb/data4.png)
+
+### ~
+ 
+Vigorously move the @boardname@ in the @boardname@ simulatator by moving the @boardname@ image from side to side. Every time the @boardname@ moves in the x direction in the simulator,  you are generating data points that can be reviewed in Excel. The more attempts to move the @boardname@ from side to side, the more data being saved in Excel. After you have vigarously moved the @boardname@ simulator from side to side for a sufficient amount of time, you are ready to graph or chart the accceleration of the @boardname@. We want a printout of our acceleration on Excel that can be graphed in Excel. 
+
+### ~
+
+We want to chart the data collected by using a tool in Excel. 
+
+The final part of this experiment is opening and reviewing the data in the Excel CSV file. Simply click on the line beneath the simulator. A CSV file will be generated to display the data points collected by moving the @boardname@ in the X direction. Then click or tap on the data Excel file that was downloaded to your local ``Downloads`` Folder. 
+
+
+### ~
+
+
+First, click or tap on the first two columns (A, B) to  include the time of the data being collected; b) the results of acceleration data on the @boardname@  
+
+![](/static/mb/data7.png)
+
+Use the Recommended Charts command on the Insert tab to quickly create a chart that’s just right for your data.
+
+* Select the data that you want to include in your chart.
+
+* Click Insert > Recommended Charts.
+
+![](/static/mb/lessons/chart1.png)
+
+* On the Recommended Charts tab, scroll through the list of chart types that Excel recommends for your data. Pick the **scatter plot**.
+
+### ~avatar avatar
+
+Excellent, you're ready to continue with the [challenges](/lessons/charting/challenge)
+
+### ~
+

docs/lessons/charting/challenge.md

@@ -0,0 +1,92 @@
+# Challenge
+
+### ~avatar avatar
+
+Welcome! The activity will teach you how to use the acceleration of the 1st @boardname@ and to visualize the acceleration on the 2nd @boardname@.
+Let's get started!
+
+### ~
+Let's measure `acceleration (mg)` and then `send number`. `Acceleration` is measured in **milli-gravities**, so a value of -1000 is equivalent to -1g or -9.81m/s^2. We will be able to get the acceleration value (g-force), in the specified "x" dimension. `Send number` will broadcast a number data packet to other @boardname@s connected via radio.
+
+```blocks
+radio.sendNumber(input.acceleration(Dimension.X));
+```
+### ~
+We want to display the acceleration forever. In order to do so, we need a `forever` loop. A forever loop will repeat code in the background forever.
+
+```blocks
+basic.forever(() => {
+    radio.sendNumber(input.acceleration(Dimension.X));
+});
+
+
+```
+### ~
+We want to register code to run when a packet is received over radio. We can implement this code by adding `on data received`.
+
+```blocks
+basic.forever(() => {
+    radio.sendNumber(input.acceleration(Dimension.X))
+})
+radio.onDataPacketReceived(() => {
+
+})
+```
+### ~
+Finally, we want to chart the acceleration. So we must first implement `plot bar graph`. `Plot Bar Graph` will display a vertical bar graph based on the value and high value. In order to transfer the receive the number from the 1st @boardname@, we must implement `receive number` to constantly display a vertical bar graph based on the value. Remember, the value will equal to the @boardname@'s acceleration in the "x" direction.
+
+```blocks
+basic.forever(() => {
+    radio.sendNumber(input.acceleration(Dimension.X))
+})
+radio.onDataPacketReceived(({ receivedNumber }) => {
+    led.plotBarGraph(receivedNumber, 1023)
+})
+
+```
+### ~
+Notice that moving the @boardname@ the farthest direction in the x direction will be -1023 on the charting beneath the simulator. The second observation will be that the LEDs will be full brightness on the 2nd @boardname@. There is a single LED turned on with the 1st @boardname@. Additionally, the graphs will reflect 0 acceleation for the 1st @boardname@. In this scenario, if you are adjusting the acceleration in the simualator, you are also changing your chart that will be produced.
+
+![](/static/mb/acc.png)
+
+### ~
+NOTE: The colors of the charts reflect the color of the @boardname@ simulator. In this instance, the @boardname@s are blue and green. So the colors of the line graphs reflect the colors of the @boardname@
+
+ ### ~
+After running this simulation several seconds by moving the @boardname@ side to side in the x direction, you are ready to graph or chart the accceleration of the @boardname@.  We want a printout of our acceleration on Excel. We will graph the fluctuating acceleration of the simulation experiment.
+
+![](/static/mb/acc2.png)
+
+### ~
+Finally, you must open the Excel CSV file by clicking on the data.xls file that was downloaded to Downloads Folder.
+
+![](/static/mb/data3.png)
+
+Use the Recommended Charts command on the Insert tab to quickly create a chart that’s just right for your data.
+
+* Select the data that you want to include in your chart.
+
+* Click Insert > Recommended Charts.
+
+![](/static/mb/lessons/chart1.png)
+
+* On the Recommended Charts tab, scroll through the list of chart types that Excel recommends for your data. Pick the **scatter plot**.
+
+![](/static/mb/chart_title.png)
+
+* Use the Chart Elements, Chart Styles, and Chart Filters buttons next to the upper-right corner of the chart to add chart elements like axis titles or data labels, to customize the look of your chart
+
+![](/static/mb/elements_styles_filters.png)
+
+### ~
+Have fun reviewing your simulation and analyze the acceleration by chart the Excel data using Excel.
+
+* Connect the first @boardname@ to your computer using your USB cable and run the charting script on it.
+* Connect the second @boardname@ to your computer using your USB cable and run the charting script on it.
+* The first person and second person take turns tilting the @boardname@ in the "x" direction while the other player charts the data on the @boardname@!
+* Review and analyze the actual @boardname@ device acceleration data on Excel
+* Display acceleration with y or z using plot bar graph by changing acceleration from "x" to "y" or "z"
+
+```package
+radio
+```

docs/lessons/charting/quiz-answers.md

@@ -0,0 +1,33 @@
+# charting quiz answers
+
+Measure the acceleration on the @boardname@ in the "x" direction. 
+
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [charting activity](/lessons/charting)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Why are you creating a 'forever' loop?
+
+<br/>
+
+We are creating a forever loop to constantly display the appropriate brightness on the LED display.
+
+## 2. Write the line of code to measure the acceleration with respect to the "x" axis and display this value in a bar graph.
+
+<br/>
+
+```blocks
+led.plotBarGraph(input.acceleration(Dimension.X), 0)
+```
+
+## 3. After vigarously moving the @boardname@ from side to side along the "x" axis for a sufficient amount of time,insert the Excel graph for displaying a line chart used to display trends over time. 
+
+<br/>
+
+![](/static/mb/line_chart.png)
+

docs/lessons/charting/quiz.md

@@ -0,0 +1,23 @@
+# charting quiz
+
+Measure the acceleration on the @boardname@ in the "x" direction. 
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [glowing pendulum tutorial](/lessons/glowing-pendulum/activity)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Why are you creating a 'forever' loop?
+
+<br/>
+
+## 2. Write the line of code to measure the acceleration with respect to the "y" axis and store this value in a local variable called 'acceleration'.
+
+<br/>
+
+## 3. After vigarously moving the @boardname@ from side to side along the "x" axis for a sufficient amount of time,insert the Excel graph for displaying a line chart used to display trends over time. 
+
+

docs/lessons/classic-beatbox.md

@@ -0,0 +1,23 @@
+# classic beatbox 
+
+display beautiful images on the @boardname@.
+
+## Topic
+
+Music
+
+## Quick Links
+
+* [activity](/lessons/classic-beatbox/activity)
+* [challenges](/lessons/classic-beatbox/challenges)
+
+
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to make a beatbox music player using pins P1 and P2. We will be learning how to code musical notes using a local variable, for loop, on pin pressed as well as simple commands such as play and notes.
+
+## Objectives
+
+* learn how to code music on the @boardname@
+

docs/lessons/classic-beatbox/activity.md

@@ -0,0 +1,54 @@
+# beatbox activity
+
+Control images with variables. 
+
+Have you ever tried to making beat box sounds? Let's try making a beatbox with code!
+
+Let's start by adding a variable where you can store data. Then rename the variable to "sound". Then set the value of the variable to the note block `A` from the Music drawer. Modify your code so that your code looks like this.
+
+```blocks
+let sound = music.noteFrequency(Note.A);
+```
+
+We want to play music on pin pressed in order to register an event handler that will execute whenever when you run a script and click pin 1 on the simulator. We must start by opening the Input drawer and adding `on pin pressed` P1. Modify your code so that your code looks like this.
+
+```blocks
+let sound = music.noteFrequency(Note.A);
+input.onPinPressed(TouchPin.P1, () => {
+
+})
+```
+
+We want to code the notes that will be played `on pin pressed`. We click on the Input drawer then insert a `for loop` that will increment by *i*. Click on the Variables drawer. Add `set item` block. Rename the variable block to "sound." Then add a Maths block to increase the variable sound from the note frequency of block `A` to `A` plus 25.Modify your code so that your code looks like this
+
+```blocks
+let sound = music.noteFrequency(Note.A);
+input.onPinPressed(TouchPin.P1, () => {
+    for (let i = 0; i < 4; i++) {
+        sound = sound + 25
+    }
+})
+```
+
+Include a play block with the variable called "sound" and insert a music note block `1/16`. Modify your code so that your code looks like this
+
+```blocks
+let sound = music.noteFrequency(Note.A);
+input.onPinPressed(TouchPin.P1, () => {
+    for (let i = 0; i < 5; i++) {
+        sound = sound + 25
+        music.playTone(music.noteFrequency(sound), music.beat(BeatFraction.Sixteenth));
+    }
+
+})
+
+```
+
+
+* click *run* to see if the code works as expected.
+
+### ~avatar boothing
+
+Excellent, you're ready to continue with the [challenges](/lessons/classic-beatbox/challenges)!
+
+### ~

docs/lessons/classic-beatbox/challenges.md

@@ -0,0 +1,48 @@
+# beatbox challenges
+
+Create sounds with variables.
+
+## Before we get started
+
+Complete the [beatbox](/lessons/classic-beatbox/activity) activity and your code will look like this:
+
+
+```blocks
+let sound = music.noteFrequency(Note.A);
+input.onPinPressed(TouchPin.P1, () => {
+    for (let i = 0; i < 4; i++) {
+        sound = sound + 25
+         music.playTone(music.noteFrequency(sound), music.beat(BeatFraction.Sixteenth));
+    }
+})
+```
+
+### Challenge 1
+
+Let's include a second sound `on pin pressed` *P2*. To do this, you need to add the same blocks as the banana keyboard activity. However, you must change alter `on pin pressed` from P1 to P2. Additionally, you must *decrease* the frequency of the variable "sound" by 25. Modify your code so that your code looks like this
+
+
+```blocks
+let sound = music.noteFrequency(Note.A);
+input.onPinPressed(TouchPin.P1, () => {
+    for (let i = 0; i < 5; i++) {
+        sound = sound + 25
+        music.playTone(music.noteFrequency(sound), music.beat(BeatFraction.Sixteenth));
+    }
+
+})
+input.onPinPressed(TouchPin.P2, () => {
+    for (let i = 0; i < 5; i++) {
+        sound = sound - 25
+        music.playTone(music.noteFrequency(sound), music.beat(BeatFraction.Sixteenth));
+    }
+
+})
+```
+
+* click *run* to see if the code works as expected.
+
+### Challenge 2
+
+Finally, we want images to be displayed with sounds `on pin pressed`. Add `show LEDs` blocks under `on pin pressed` P1 and P2.
+

docs/lessons/compass.md

@@ -0,0 +1,45 @@
+# compass lesson
+
+create a die on the @boardname@.
+
+## Topic
+
+If (Conditionals)
+
+## Quick Links
+
+* [activity](/lessons/compass/activity)
+* [challenges](/lessons/compass/challenges)
+* [quiz](/lessons/compass/quiz)
+* [quiz answers](/lessons/compass/quiz-answers)
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to use an if statements to run code run code depending on whether a condition is true or not. We will be learning how to create a compass with If statements, Forever, Variables, Assignment Operator, Comparison Operator, Show String, and Show LEDs
+
+## Documentation
+
+```cards
+input.compassHeading()
+basic.forever(() => {})
+let x = 0
+if (true) {}
+basic.showString("Hello!")
+basic.showLeds(`
+    . . . . .
+    . . . . .
+    . . # . .
+    . . . . .
+    . . . . .
+    `)
+```
+
+## Objectives
+
+* learn how to run code when the @boardname@ is shaken, when running code in the web browser, moving the mouse quickly simulates shaking
+* learn how to create a local variable as a place where you can store and retrieve data
+* learn how the assignment operator is used to declare a new local variable
+* learn how to declare a new local variable or update the value of a variable
+* learn how to return a random number
+* learn how to conditionally run code depending on whether a condition is true or not
+* learn how to show an image on the LED screen

docs/lessons/compass/activity.md

@@ -0,0 +1,98 @@
+# compass activity
+
+Display the direction that the @boardname@ is facing using the compass 
+
+### ~avatar avatar
+
+Welcome! This guided tutorial will show you how to program a script that displays the direction the @boardname@ is pointing. Let's get started!
+
+### ~
+
+Create a loop that will continuously update the reading of the compass.
+
+
+```blocks
+basic.forever(() => {
+    
+})
+```
+
+Store the reading of the @boardname@ in a variable called `degrees`.
+
+```blocks
+basic.forever(() => {
+    let degrees = input.compassHeading()
+})
+```
+
+If `degrees` is less than `45`, then the compass heading is mostly pointing toward North. Display `N` on the @boardname@.
+
+```blocks
+basic.forever(() => {
+    let degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showString("N");
+    }
+});
+```
+
+If `degrees` is less than 135, the @boardname@ is mostly pointing East. Display `E` on the @boardname@.
+
+
+```blocks
+basic.forever(() => {
+    let degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showString("N");
+    }
+    else if (degrees < 135) {
+        basic.showString("E");
+    }
+});
+```
+
+If `degrees` is less than 225, the @boardname@ is mostly pointing South. Display `S` on the @boardname@.
+
+
+```blocks
+basic.forever(() => {
+    let degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showString("N");
+    }
+    else if (degrees < 135) {
+        basic.showString("E");
+    }
+    else if (degrees < 225) {
+        basic.showString("S");
+    }
+});
+```
+
+
+If none of these conditions returned true, then the @boardname@ must be pointing West. Display `W` on the @boardname@.
+
+```blocks
+basic.forever(() => {
+    let degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showString("N");
+    }
+    else if (degrees < 135) {
+        basic.showString("E");
+    }
+    else if (degrees < 225) {
+        basic.showString("S");
+    }
+    else {
+        basic.showString("W");
+    }
+});
+```
+
+### ~avatar avatar
+
+Excellent, you're ready to continue with the [challenges](/lessons/compass/challenges)!
+
+### ~
+

docs/lessons/compass/challenges.md

@@ -0,0 +1,88 @@
+# compass challenges
+
+Display the direction that the @boardname@ is facing using the compass 
+
+## Before we get started
+
+Complete the following [guided tutorial](/lessons/compass/activity), your code should look like this:
+
+```blocks
+ let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showString("N");
+    }
+    else if (degrees < 135) {
+        basic.showString("E");
+    }
+    else if (degrees < 225) {
+        basic.showString("S");
+    }
+    else {
+        basic.showString("W");
+    }
+});
+```
+
+### Challenge 1
+
+Instead of displaying `N` when the @boardname@ is pointing North, display a star to indicate the north star.
+
+```blocks
+ let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showLeds(`
+# . # . #
+. # # # .
+# # # # #
+. # # # .
+# . # . #`);
+    }
+    else if (degrees < 135) {
+        basic.showString("E");
+    }
+    else if (degrees < 225) {
+        basic.showString("S");
+    }
+    else {
+        basic.showString("W");
+    }
+});
+```
+
+
+* Run your code to see if it works as expected
+
+### Challenge 2
+
+Instead of displaying just `N`, `W`, `S`, or `E`, display the full word.
+
+```blocks
+ let degrees = 0;
+basic.forever(() => {
+    degrees = input.compassHeading();
+    if (degrees < 45) {
+        basic.showString("NORTH");
+    }
+    else if (degrees < 135) {
+        basic.showString("EAST");
+    }
+    else if (degrees < 225) {
+        basic.showString("SOUTH");
+    }
+    else {
+        basic.showString("WEST");
+    }
+});
+```
+
+
+* Run your code to see if it works as expected
+
+### Challenge 3
+
+Display your own unique message for each direction.
+

docs/lessons/compass/quiz-answers.md

@@ -0,0 +1,54 @@
+# compass quiz answers
+
+Create an actual compass to show your direction: North, South, East, or West 
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [compass tutorial](/lessons/compass/activity).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. What is the purpose of the 'compass heading' block?
+
+Gets the compass heading of the @boardname@ in degrees
+
+
+## 2. Write the code that stores the compass heading into a local variable called 'degrees'. 
+
+
+```blocks
+let degrees = input.compassHeading()
+```
+
+## 3. Write the 'If statement' that will check if the device is mostly pointing North. Display 'N' on the @boardname@ 
+
+
+```blocks
+let degrees = input.compassHeading()
+if (degrees < 45) {
+    basic.showString("N", 150)
+}
+```
+
+## 4. Write the 'If statement' that will check if the device is mostly pointing East. Display 'E' on the @boardname@ 
+
+
+```blocks
+let degrees = input.compassHeading()
+if (degrees < 135) {
+    basic.showString("E", 150)
+}
+```
+
+## 5. Write the 'If statement' that will check if the device is mostly pointing South. Display 'S' on the @boardname@ 
+
+
+```blocks
+let degrees = input.compassHeading()
+if (degrees < 225) {
+    basic.showString("S", 150)
+}
+```
+

docs/lessons/compass/quiz.md

@@ -0,0 +1,26 @@
+# compass quiz
+
+Create an actual compass to show your direction: North, South, East, or West 
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [compass activity](/lessons/compass/activity).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. What is the purpose of the 'compass heading' block?
+
+## 2. Write the code that stores the compass heading into a local variable called 'degrees'. 
+
+
+## 3. Write the 'If statement' that will check if the device is mostly pointing North. Display 'N' on the @boardname@ 
+
+
+## 4. Write the 'If statement' that will check if the device is mostly pointing East. Display 'E' on the @boardname@ 
+
+
+## 5. Write the 'If statement' that will check if the device is mostly pointing South. Display 'S' on the @boardname@ 
+
+

docs/lessons/counter.md

@@ -0,0 +1,48 @@
+# counter lesson
+
+Learn how to create a counter with with on button pressed.
+
+## Topic
+
+Variables
+
+## Quick Links
+
+* [activity](/lessons/counter/activity)
+* [challenges](/lessons/counter/challenges)
+* [quiz](/lessons/counter/quiz)
+* [quiz answers](/lessons/counter/quiz-answers)
+
+## Prior learning/place of lesson in scheme of work
+
+Learn how to creating a **variable** to keep track of the current count. We will be learning how to create a counter app using a variable as well as simple commands, such as on button pressed, and show number.
+
+## Documentation
+
+```cards
+input.compassHeading()
+basic.forever(() => {})
+let x = 0
+if (true) {}
+basic.showString("Hello!")
+basic.showLeds(`
+    . . . . .
+    . . . . .
+    . . # . .
+    . . . . .
+    . . . . .
+    `)
+```
+
+* **variable**: [read more...](/blocks/variables)
+* **arithmetic operators**: [read more...](/reference/types/number)
+* **on button pressed** : [read more...](/reference/input/on-button-pressed)
+* **show number** : [read more...](/reference/basic/show-number)
+
+## Objectives
+
+* learn how to create a variable as a place where you can store data so that you can use it later in your code, accessible across all functions, and in nested code blocks
+* learn how arithmetic operators operate on numbers and return a number
+* learn how to run code when an input button is pressed
+* learn how to show a number on the LED screen, one digit at a time (scrolling from left to right)
+

docs/lessons/counter/activity.md

@@ -0,0 +1,43 @@
+# counter activity
+
+Display a number with a variable. 
+
+### ~avatar avatar
+
+Welcome! This tutorial will teach you how to make a counter that increments when button A is pressed. Let's get started!
+
+### ~
+
+Let's start by creating a **local variable** `count` to keep track of the current count.
+
+```blocks
+let count = 0
+```
+
+The code under ``on button pressed("A")`` will run each time the user presses A. Let's add a line of code that increments `count` by `1`.
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count = count + 1
+})
+```
+
+Since the count has changed, it's time to refresh the screen display. Let's add a line of code to display the count on screen.
+
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count = count + 1
+    basic.showNumber(count)
+})
+```
+
+
+### ~avatar avatar
+
+Excellent, you're ready to continue with the [challenges](/lessons/counter/challenges)
+
+### ~
+

docs/lessons/counter/challenges.md

@@ -0,0 +1,37 @@
+# counter challenges
+
+Coding challenges for the counter.
+
+## Before we get started
+
+Complete the following [guided tutorial](/lessons/counter/activity) At the end of the tutorial, click **keep editing**. Your code should look like this:
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count = count + 1
+    basic.showNumber(count)
+})
+```
+
+### Challenge 1
+
+Let's add the code to `count` when `B` is pressed. Add an event handler with `on button pressed(B)` then add the code to `count`.
+
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count = count + 1
+    basic.showNumber(count)
+})
+input.onButtonPressed(Button.B, () => {
+    count = count - 1
+    basic.showNumber(count)
+})
+```
+
+### Challenge 3
+
+Now let's try to reset the counter when the @boardname@ is shaken. You will need to register an event handler with `on shake`.
+

docs/lessons/counter/quiz-answers.md

@@ -0,0 +1,54 @@
+# counter quiz answers 
+
+Learn how to create a counter with the @boardname@ button. 
+
+This is the answer key for the [counter quiz](/lessons/counter/quiz).
+
+## 1. What is a variable?
+
+Answers may vary but a variable is a place where you can store and retrieve data
+
+## 2. Draw the stored value for the variable called count
+
+```blocks
+let count = 0
+```
+
+![](/static/mb/lessons/counter-0.png)
+
+We create a **variable**, `count` to keep track of the current count. The number 0 is stored into memory of the variable.
+
+<br/>
+
+## 3. Draw which LEDs are ON after running this code and pressing button "A" once. Explain you chose to draw that number
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count = count + 1
+    basic.showNumber(count)
+})
+```
+
+![](/static/mb/lessons/counter-1.png)
+
+We are only pressing on button pressed once. So the number to display on the @boardname@ is also one.
+
+<br/>
+
+## 4. Draw which LEDs are ON after running this code and pressing button "A" three times. Explain you chose to draw that number
+
+```blocks
+let count = 0
+input.onButtonPressed(Button.A, () => {
+    count =  + 1
+    basic.showNumber(count)
+})
+```
+
+![](/static/mb/lessons/counter-2.png)
+
+We included the code ``on button pressed("A")`` that runs each time the user presses A. The code increments `count` by `1`. We increase `count` by 1 whenever the user presses the button. So the third time the A button is pressed on the @boardname@, the number 3 is displayed
+
+<br/>
+