0.3.29

-ignore snippet notation

.gitignore

@@ -1,16 +1,21 @@
 node_modules
 yotta_modules
 yotta_targets
+pxt_modules
 built
 typings
 tmp
 temp
 projects/**
+clients/win10/app/AppPackages
+clients/win10/app/BundlePackages
+clients/win10/app/BundleArtifacts
 clients/win10/app/bin
 clients/win10/app/bld
 clients/win10/*.opendb
 clients/**/bin/**
 clients/**/obj/**
+clients/electron/projects
 
 *.user
 *.sw?
@@ -18,4 +23,4 @@ clients/**/obj/**
 *.tgz
 *.db
 *.suo
-*.log
+*.log

.travis.yml

@@ -4,8 +4,12 @@ node_js:
 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"
   - "node node_modules/pxt-core/built/pxt.js uploaddoc"
-  - "(cd libs/hello; node ../../node_modules/pxt-core/built/pxt.js testconv ../../testconv.json)"
+  - "(cd libs/hello; node ../../node_modules/pxt-core/built/pxt.js testconv https://az851932.vo.msecnd.net/files/td-converter-tests-v0.json)"
 sudo: false
 notifications:
   email:

README.md

@@ -9,12 +9,19 @@ PXT ([Microsoft Programming Experience Toolkit](https://github.com/Microsoft/pxt
 
 ## Local server
 
+The local server allows to run the editor and the documentation from your computer.
+
 ### Setup
 
 The following commands are a 1-time setup after synching the repo on your machine.
 
-* clone this repo to your computer
-* install the PXT command line
+* if not yet installed, install [Node.js 4.4.5 or higher](https://nodejs.org/en/download/)
+* [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-microbit
+cd pxt-microbit
+```
+* install the PXT command line (add ``sudo`` for Mac/Linux shells).
 ```
 npm install -g pxt
 ```
@@ -37,7 +44,9 @@ If you need modify the `.cpp` files, turn on yotta compilation with the ``-yt``
 pxt serve -yt
 ```
 
-To make sure you're running the latest tools, run (add ``sudo`` for Mac/Linux shells)
+## Updates
+
+To update your PXT version and make sure you're running the latest tools, run (add ``sudo`` for Mac/Linux shells)
 ```
 pxt update
 ```
@@ -54,6 +63,23 @@ that wraps ``codethemicrobit.com`` and provides additional features.
 * Install Visual Studio 2015 Update 2 or higher. Make sure the Windows 10 templates are installed.
 * open the ``win10/app.sln`` solution and launch the ``codethemicrobit`` project.
 
+## Testing
+
+The build automatically runs the following:
+
+* make sure the built-in packages compile
+* `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:
+
+* do a `pxt deploy` in `libs/lang-test*` - they should show `1` or `2` on the screen (and not unhappy face)
+* run `pxt testdir` in `tests` and deploy some of the hex files from `tests/built`
+
+The `lang-test0` source comes from the `pxt-core` package. It's also tested with `pxt run` there. 
+
 ## Code of Conduct
 
 This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.

clients/electron/main.js

@@ -0,0 +1,67 @@
+const electron = require('electron')
+// Module to control application life.
+const app = electron.app
+// Module to create native browser window.
+const BrowserWindow = electron.BrowserWindow
+// pxt toolchain
+const pxt = require('pxt-core')
+
+// Keep a global reference of the window object, if you don't, the window will
+// be closed automatically when the JavaScript object is garbage collected.
+let mainWindow
+
+function createWindow() {
+  console.log('starting app...')
+  // Create the browser window.
+  mainWindow = new BrowserWindow({
+    width: 800, height: 600,
+    webPreferences: {
+      nodeIntegration: false,
+    }
+  })
+
+  ts.pxt.Util.debug = true;
+  pxt.mainCli("C:/gh/pxt-microbit/clients/electron/node_modules/pxt-microbit", ["serve", "-just"]);
+  
+  // no menu
+  mainWindow.setMenu(null);
+
+  // and load the index.html of the app.
+  mainWindow.loadURL(`http://localhost:3232/#local_token=08ba9b8f-6ccb-4202-296d-28fac7a553d9`)
+
+  // Open the DevTools.
+  mainWindow.webContents.openDevTools()
+
+  // Emitted when the window is closed.
+  mainWindow.on('closed', function () {
+    // Dereference the window object, usually you would store windows
+    // in an array if your app supports multi windows, this is the time
+    // when you should delete the corresponding element.
+    mainWindow = null
+  })
+}
+
+// This method will be called when Electron has finished
+// initialization and is ready to create browser windows.
+// Some APIs can only be used after this event occurs.
+app.on('ready', createWindow)
+
+// Quit when all windows are closed.
+app.on('window-all-closed', function () {
+  // On OS X it is common for applications and their menu bar
+  // to stay active until the user quits explicitly with Cmd + Q
+  if (process.platform !== 'darwin') {
+    app.quit()
+  }
+})
+
+app.on('activate', function () {
+  // On OS X it's common to re-create a window in the app when the
+  // dock icon is clicked and there are no other windows open.
+  if (mainWindow === null) {
+    createWindow()
+  }
+})
+
+// In this file you can include the rest of your app's specific main process
+// code. You can also put them in separate files and require them here.

clients/electron/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "codethemicrobit",
+  "version": "0.1.0",
+  "description": "A Blocks / JavaScript editor for the micro:bit",
+  "main": "main.js",
+  "scripts": {
+    "start": "electron ."
+  },
+  "author": "Microsoft",
+  "license": "MIT",
+  "devDependencies": {
+    "electron-prebuilt": "^1.2.0"
+  },
+  "dependencies": {
+    "typescript": "1.8.7",
+    "pxt-core": "*",
+    "pxt-microbit": "*"
+  }
+}

clients/win10/app/codethemicrobitapp.jsproj

@@ -20,22 +20,18 @@
     <ProjectConfiguration Include="Release|AnyCPU">
       <Configuration>Release</Configuration>
       <Platform>AnyCPU</Platform>
-      <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
     </ProjectConfiguration>
     <ProjectConfiguration Include="Release|ARM">
       <Configuration>Release</Configuration>
       <Platform>ARM</Platform>
-      <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
     </ProjectConfiguration>
     <ProjectConfiguration Include="Release|x64">
       <Configuration>Release</Configuration>
       <Platform>x64</Platform>
-      <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
     </ProjectConfiguration>
     <ProjectConfiguration Include="Release|x86">
       <Configuration>Release</Configuration>
       <Platform>x86</Platform>
-      <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">

cmds/cmds.ts

@@ -28,11 +28,12 @@ export function deployCoreAsync(res: ts.pxt.CompileResult) {
 
 function getBitDrivesAsync(): Promise<string[]> {
     if (process.platform == "win32") {
+        let rx = new RegExp("^([A-Z]:).* " + pxt.appTarget.compile.deployDrives)
         return execAsync("wmic PATH Win32_LogicalDisk get DeviceID, VolumeName, FileSystem")
             .then(buf => {
                 let res: string[] = []
                 buf.toString("utf8").split(/\n/).forEach(ln => {
-                    let m = /^([A-Z]:).* MICROBIT/.exec(ln)
+                    let m = rx.exec(ln)
                     if (m) {
                         res.push(m[1] + "/")
                     }
@@ -41,8 +42,9 @@ function getBitDrivesAsync(): Promise<string[]> {
             })
     }
     else if (process.platform == "darwin") {
+        let rx = new RegExp(pxt.appTarget.compile.deployDrives)
         return readDirAsync("/Volumes")
-            .then(lst => lst.filter(s => /MICROBIT/.test(s)).map(s => "/Volumes/" + s + "/"))
+            .then(lst => lst.filter(s => rx.test(s)).map(s => "/Volumes/" + s + "/"))
     } else {
         return Promise.resolve([])
     }

docs/about.md

@@ -38,7 +38,9 @@ Learn about the [hardware components](/device) of the micro:bit to make the most
 You can program the micro:bit using [Blocks](/blocks) or [JavaScript](/javascript), via the [micro:bit APIs](/reference):
 
 ```blocks
-basic.showString("Hi!");
+input.onButtonPressed(Button.A, () => {
+    basic.showString("Hi!");
+})
 ```
 
 ## Compile and Flash: Your Program!

docs/blocks.md

@@ -5,4 +5,8 @@ for (let i = 0;i<5;++i) {}
 if (true){}
 let x = 0;
 Math.random(5);
-```
+```
+
+## See Also
+
+[logic](/blocks/logic), [loops](/blocks/loops), [math](/blocks/math), [variables](/blocks/variables)

docs/blocks/logic/boolean.md

@@ -86,7 +86,7 @@ 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)
+let x = Math.random(5)
 if(x < 5) {
    basic.showString("low");
 } else { 

docs/blocks/variables/var.md

@@ -46,7 +46,7 @@ basic.showNumber(counter);
 
 To change the contents of a variable use the assignment operator. The following code sets `counter` to 1 and then increments `counter` by 10:
 
-```blocks 
+```blocks
 let counter = 1;
 counter = counter + 10;
 basic.showNumber(counter);

docs/code.md

@@ -0,0 +1,54 @@
+# Visual Studio Code
+
+Visual Studio Code 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.
+
+![](https://code.visualstudio.com/home/home-screenshot-win-lg.png)
+
+## Setup
+
+Follow these instructions to setup your machine and edit your programs in Visual Studio Code.
+
+* install [Visual Studio Code](https://code.visualstudio.com/)
+* install [Node.JS](https://nodejs.org/en/)
+* install the PXT Tools (on Mac or Linux, you might have to add ``sudo`` to the command).
+```
+pxt install -g pxt
+```
+* create a folder for your projects
+```
+mkdir microbit
+```
+* install the microbit target
+```
+pxt target microbit
+```
+
+That's it! You are ready to create new projects in code or open existing projects.
+
+## Creating a new project
+
+Open a shell to your ``microbit`` folder.
+
+```
+# create a new subfolder for your project
+mkdir myproject
+cd myproject
+# start the project set
+pxt init
+# open code
+code . 
+```
+
+## Opening an existing project 
+
+You can extract a project from the embedded URL or .hex file. Open a shell to your projects folder
+
+```
+# extract the project from the URL
+pxt extract EMBEDURL
+```
+where ``EMBEDURL`` is the published project URL.

docs/device/reactive.md

@@ -48,41 +48,45 @@ The micro:bit’s *scheduler* provides the capability to concurrently execute di
 
 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.
 
-```
-export function countButtonPresses() {
-    input.onButtonPressed(Button.A, () => {
-        count = count + 1
-    })
-    basic.forever(() => {
-        basic.showNumber(count, 150)
-    })
-    count = 0
-}
-```
-
-The program above contains three statements that execute in order from top to bottom. The first statement
-
-```
+```blocks
+let count = 0
 input.onButtonPressed(Button.A, () => {
-    count = count + 1
+    count++;
 })
-```
-
-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.  The second statement
-
-```
 basic.forever(() => {
     basic.showNumber(count, 150)
 })
 ```
 
-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
+The program above contains three statements that execute in order from top to bottom. 
+The first statement initializes the global variable `count` to zero.
 
-```
-count = 0
+```blocks
+let count = 0
 ```
 
-initializes the global variable `count` to zero.  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 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.
 
@@ -96,9 +100,18 @@ If you hadn’t guessed already, a footballer represents subprogram and dribblin
 
 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 `forever` statement to see an example of cooperative scheduling:
+Let’s take a look at the implementation of the `basic.forever` function to see an example of cooperative scheduling:
 
-![](/static/mb/device/reactive-2.png)
+```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).
 
@@ -128,15 +141,15 @@ Through this example, we have seen that the micro:bit scheduler enables you to c
 
 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)
     })
-    count = 0
     input.onButtonPressed(Button.B, () => {
         count = 0
     })

docs/javascript.md

@@ -1,15 +1,41 @@
-# JavaScript
+# JavaScript and TypeScript
 
-If you already know some JavaScript, you might be interested in [the JavaScript and TypeScript languages](/js/lang).
-Otherwise, visit the cards below to starting programming JavaScript with the micro:bit:
+Visit the cards below to starting programming JavaScript and TypeScript with the micro:bit:
 
 ```codecard
 [{
-  "name": "Calling Functions",
-  "url":"/js/call"
+  "name": "Calling",
+  "url":  "/js/call"
 },{
-  "name": "Sequencing Commands",
-  "url":"/js/sequence"
+  "name": "Sequencing",
+  "url":  "/js/sequence"
+},{
+  "name": "Variables",
+  "url":  "/js/variables"
+},{
+  "name": "Operators",
+  "url": "/js/operators"
+},{
+  "name": "Statements",
+  "url": "/js/statements"
+},{
+  "name": "Functions",
+  "url": "/js/functions"
+},{
+  "name": "Types",
+  "url": "/js/types"
+},{
+  "name": "Classes",
+  "url": "/js/classes"
+},{
+  "name": "FAQ",
+  "url": "/js/faq"
 }
 ]
-```
+
+```
+
+### See Also
+
+[calling](/js/call), [sequencing](/js/sequence), [variables](/js/variables), [operators](/js/operators), [statements](/js/statements), [functions](/js/functions), 
+[types](/js/types), [classes](/js/classes), [FAQ](/js/faq)

docs/js/call.md

@@ -3,8 +3,8 @@
 The simplest way to get started in JavaScript with your micro:bit is to
 call one of the micro:bit's built-in JavaScript functions. Just like Blocks
 are organized into categories/drawers, the micro:bit functions are organized by
-namespaces, with names corresponding to the drawer names.  
-The `basic` namespace contains a number of very helpful functions:
+namespaces, with names corresponding to the drawer names.  The `basic` namespace 
+contains a number of helpful functions, such as:
 
 ```typescript
 basic.showString("Hello!")
@@ -49,7 +49,7 @@ basic.clearScreen()
 
 It's a syntax error to have a left parenthesis without the "closing" right parenthesis:
 
-```typescript
+```
 basic.clearScreen(
 ```
 

docs/js/classes.md

@@ -0,0 +1,268 @@
+# Classes
+
+Traditional JavaScript focuses on functions and prototype-based inheritance as the basic means of building up reusable components, 
+but this may feel a bit awkward to programmers more comfortable with an object-oriented approach, where classes inherit functionality 
+and objects are built from these classes.
+
+Starting with ECMAScript 2015, also known as ECMAScript 6, JavaScript programmers will be able to build their applications using 
+this object-oriented class-based approach. TypeScript, allows you to use these techniques now, compiling them 
+down to JavaScript that works across all major browsers and platforms, without having to wait for the next version of JavaScript.
+
+Let's take a look at a simple class-based example:
+
+```ts
+class Greeter {
+    greeting: string;
+    constructor(message: string) {
+        this.greeting = message;
+    }
+    greet() {
+        return "Hello, " + this.greeting;
+    }
+}
+
+let greeter = new Greeter("world");
+```
+
+We declare a new class `Greeter`. This class has three members: a property called `greeting`, a constructor, and a method `greet`.
+
+You'll notice that in the class when we refer to one of the members of the class we prepend `this.`.
+This denotes that it's a member access.
+
+In the last line we construct an instance of the `Greeter` class using `new`.
+This calls into the constructor we defined earlier, creating a new object with the `Greeter` shape, and running the constructor to initialize it.
+
+# Inheritance
+
+### ~hint
+### Inheritance is not supported yet for the micro:bit. Coming soon...
+### ~
+
+In TypeScript, we can use common object-oriented patterns.
+Of course, one of the most fundamental patterns in class-based programming is being able to extend existing classes to create new ones using inheritance.
+
+Let's take a look at an example:
+
+```ts-ignore
+class Animal {
+    name: string;
+    constructor(theName: string) { this.name = theName; }
+    move(distanceInMeters: number = 0) {
+        console.log(`${this.name} moved ${distanceInMeters}m.`);
+    }
+}
+
+class Snake extends Animal {
+    constructor(name: string) { super(name); }
+    move(distanceInMeters = 5) {
+        console.log("Slithering...");
+        super.move(distanceInMeters);
+    }
+}
+
+class Horse extends Animal {
+    constructor(name: string) { super(name); }
+    move(distanceInMeters = 45) {
+        console.log("Galloping...");
+        super.move(distanceInMeters);
+    }
+}
+
+let sam = new Snake("Sammy the Python");
+let tom: Animal = new Horse("Tommy the Palomino");
+
+sam.move();
+tom.move(34);
+```
+
+This example covers quite a few of the inheritance features in TypeScript that are common to other languages.
+Here we see the `extends` keywords used to create a subclass. 
+You can see this where `Horse` and `Snake` subclass the base class `Animal` and gain access to its features.
+
+Derived classes that contain constructor functions must call `super()` which will execute the constructor function on the base class.
+
+The example also shows how to override methods in the base class with methods that are specialized for the subclass.
+Here both `Snake` and `Horse` create a `move` method that overrides the `move` from `Animal`, giving it functionality specific to each class.
+Note that even though `tom` is declared as an `Animal`, since its value is a `Horse`, when `tom.move(34)` calls the overriding method in `Horse`:
+
+```Text
+Slithering...
+Sammy the Python moved 5m.
+Galloping...
+Tommy the Palomino moved 34m.
+```
+
+# Public, private, and protected modifiers
+
+## Public by default
+
+In our examples, we've been able to freely access the members that we declared throughout our programs.
+If you're familiar with classes in other languages, you may have noticed in the above examples 
+we haven't had to use the word `public` to accomplish this; for instance, 
+C# requires that each member be explicitly labeled `public` to be visible.
+In TypeScript, each member is `public` by default.
+
+You may still mark a member `public` explicitly.
+We could have written the `Animal` class from the previous section in the following way:
+
+```ts-ignore
+class Animal {
+    public name: string;
+    public constructor(theName: string) { this.name = theName; }
+    public move(distanceInMeters: number) {
+        console.log(`${this.name} moved ${distanceInMeters}m.`);
+    }
+}
+```
+
+## Understanding `private`
+
+When a member is marked `private`, it cannot be accessed from outside of its containing class. For example:
+
+```ts-ignore
+class Animal {
+    private name: string;
+    constructor(theName: string) { this.name = theName; }
+}
+
+new Animal("Cat").name; // Error: 'name' is private;
+```
+
+TypeScript is a structural type system.
+When we compare two different types, regardless of where they came from, if the types of all members are compatible, then we say the types themselves are compatible.
+
+However, when comparing types that have `private` and `protected` members, we treat these types differently.
+For two types to be considered compatible, if one of them has a `private` member, 
+then the other must have a `private` member that originated in the same declaration.
+The same applies to `protected` members.
+
+Let's look at an example to better see how this plays out in practice:
+
+```ts-ignore
+class Animal {
+    private name: string;
+    constructor(theName: string) { this.name = theName; }
+}
+
+class Rhino extends Animal {
+    constructor() { super("Rhino"); }
+}
+
+class Employee {
+    private name: string;
+    constructor(theName: string) { this.name = theName; }
+}
+
+let animal = new Animal("Goat");
+let rhino = new Rhino();
+let employee = new Employee("Bob");
+
+animal = rhino;
+animal = employee; // Error: 'Animal' and 'Employee' are not compatible
+```
+
+In this example, we have an `Animal` and a `Rhino`, with `Rhino` being a subclass of `Animal`.
+We also have a new class `Employee` that looks identical to `Animal` in terms of shape.
+We create some instances of these classes and then try to assign them to each other to see what will happen.
+Because `Animal` and `Rhino` share the `private` side of their shape from the same declaration of 
+`private name: string` in `Animal`, they are compatible. However, this is not the case for `Employee`.
+When we try to assign from an `Employee` to `Animal` we get an error that these types are not compatible.
+Even though `Employee` also has a `private` member called `name`, it's not the one we declared in `Animal`.
+
+## Understanding `protected`
+
+The `protected` modifier acts much like the `private` modifier with the exception that members 
+declared `protected` can also be accessed by instances of deriving classes. For example,
+
+```ts-ignore
+class Person {
+    protected name: string;
+    constructor(name: string) { this.name = name; }
+}
+
+class Employee extends Person {
+    private department: string;
+
+    constructor(name: string, department: string) {
+        super(name);
+        this.department = department;
+    }
+
+    public getElevatorPitch() {
+        return `Hello, my name is ${this.name} and I work in ${this.department}.`;
+    }
+}
+
+let howard = new Employee("Howard", "Sales");
+console.log(howard.getElevatorPitch());
+console.log(howard.name); // error
+```
+
+Notice that while we can't use `name` from outside of `Person`, 
+we can still use it from within an instance method of `Employee` because `Employee` derives from `Person`.
+
+A constructor may also be marked `protected`.
+This means that the class cannot be instantiated outside of its containing class, but can be extended. For example,
+
+```ts-ignore
+class Person {
+    protected name: string;
+    protected constructor(theName: string) { this.name = theName; }
+}
+
+// Employee can extend Person
+class Employee extends Person {
+    private department: string;
+
+    constructor(name: string, department: string) {
+        super(name);
+        this.department = department;
+    }
+
+    public getElevatorPitch() {
+        return `Hello, my name is ${this.name} and I work in ${this.department}.`;
+    }
+}
+
+let howard = new Employee("Howard", "Sales");
+let john = new Person("John"); // Error: The 'Person' constructor is protected
+```
+
+# Readonly modifier
+
+You can make properties readonly by using the `readonly` keyword.
+Readonly properties must be initialized at their declaration or in the constructor.
+
+```ts-ignore
+class Octopus {
+    readonly name: string;
+    readonly numberOfLegs: number = 8;
+    constructor (theName: string) {
+        this.name = theName;
+    }
+}
+let dad = new Octopus("Man with the 8 strong legs");
+dad.name = "Man with the 3-piece suit"; // error! name is readonly.
+```
+
+## Parameter properties
+
+In our last example, we had to declare a readonly member `name` and a constructor parameter `theName` in the `Octopus` class, and we then immediately set `name` to `theName`.
+This turns out to be a very common practice.
+*Parameter properties* let you create and initialize a member in one place.
+Here's a further revision of the previous `Octopus` class using a parameter property:
+
+```ts-ignore
+class Octopus {
+    readonly numberOfLegs: number = 8;
+    constructor(readonly name: string) {
+    }
+}
+```
+
+Notice how we dropped `theName` altogether and just use the shortened `readonly name: string` parameter on the constructor to create and initialize the `name` member.
+We've consolidated the declarations and assignment into one location.
+
+Parameter properties are declared by prefixing a constructor parameter with an accessibility modifier or `readonly`, or both.
+Using `private` for a parameter property declares and initializes a private member; likewise, the same is done for `public`, `protected`, and `readonly`.
+

docs/js/faq.md

@@ -0,0 +1,58 @@
+# Frequently asked questions
+
+# What is the language supported for the micro:bit?
+
+For the micro:bit, we support a "static" subset of TypeScript (itself a superset of JavaScript):
+
+## Supported language features
+
+* variables with `let`, `const`, and `var`
+* functions with lexical scoping and recursion
+* top-level code in the file; hello world really is `console.log("Hello world")`
+* `if ... else if ... else` statements
+* `while` and `do ... while` loops
+* `for(;;)` loops (see below about `for ... in/of`)
+* `break/continue`; also with labeled loops
+* `switch` statement (on numbers only)
+* `debugger` statement for breakpoints
+* conditional operator `? :`; lazy boolean operators
+* namespaces (a form of modules) 
+* all arithmetic operators (including bitwise operators); note that in microcontroller targets
+  all arithmetic is performed on integers, also when simulating in the browser
+* strings (with a few common methods)
+* [string templates](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals) (`` `x is ${x}` ``)
+* arrow functions `() => ...`
+* classes with fields, methods and constructors; `new` keyword
+* array literals `[1, 2, 3]`
+* enums
+
+## Unsupported language features
+
+We generally stay away from the more dynamic parts of JavaScript. 
+Things you may miss and we may implement:
+
+* exceptions (`throw`, `try ... catch`, `try ... finally`)
+* `for ... of` statements
+* object literals `{ foo: 1, bar: "two" }`
+* method-like properties (get/set accessors)
+* class inheritance
+
+For JS-only targets we may implement the following:
+
+* regular expressions
+* classes implementing interfaces
+
+Things that we are not very likely to implement:
+
+* file-based modules (`import * from ...`, `module.exports` etc); we do support namespaces
+* spread operator
+* `yield` expression and ``function*``
+* `await` expression and `async function`
+* `typeof` expression
+* tagged templates ``tag `text ${expression} more text` ``; regular templates are supported
+* binding with arrays or objects: `let [a, b] = ...; let { x, y } = ...`
+* `with` statement
+* `eval`
+* `delete` statement
+* `for ... in` statements
+* JSX (HTML as part of JavaScript)

docs/js/functions.md

@@ -0,0 +1,161 @@
+# Functions
+
+Functions are the fundamental building block of programs. Here is the simplest
+way to make a function that adds two numbers:
+
+```ts
+// Named function
+function add(x : number, y : number) {
+    return x + y;
+}
+
+basic.showNumber(add(1, 2))
+```
+
+### ~ hint
+For the micro:bit, you must specify a [type](/js/types) for each function parameter. 
+### ~ 
+
+Functions can refer to variables outside of the function body.
+When they do so, they're said to `capture` these variables.
+
+```ts
+let z = 100;
+
+function addToZ(x: number, y: number) {
+    return x + y + z;
+}
+
+basic.showNumber(addToZ(1, 2))
+```
+
+## Typing the function
+
+Let's add a return type to our add function:
+
+```ts
+function add(x: number, y: number): number {
+    return x + y;
+}
+```
+
+TypeScript can figure the return type out by looking at the return statements, so you can optionally leave this off in many cases.
+
+# Optional and Default Parameters
+
+In TypeScript, the number of arguments given to a function has to match the number of parameters the function expects.
+
+```ts-ignore
+function buildName(firstName: string, lastName: string) {
+    return firstName + " " + lastName;
+}
+
+let result1 = buildName("Bob");                  // error, too few parameters
+let result2 = buildName("Bob", "Adams", "Sr.");  // error, too many parameters
+let result3 = buildName("Bob", "Adams");         // ah, just right
+```
+
+In JavaScript, every parameter is optional, and users may leave them off as they see fit.
+When they do, their value is `undefined`.
+We can get this functionality in TypeScript by adding a `?` to the end of parameters we want to be optional.
+For example, let's say we want the last name parameter from above to be optional:
+
+```ts-ignore
+function buildName(firstName: string, lastName?: string) {
+    if (lastName)
+        return firstName + " " + lastName;
+    else
+        return firstName;
+}
+
+let result1 = buildName("Bob");                  // works correctly now
+let result2 = buildName("Bob", "Adams", "Sr.");  // error, too many parameters
+let result3 = buildName("Bob", "Adams");         // ah, just right
+```
+
+Any optional parameters must follow required parameters.
+Had we wanted to make the first name optional rather than the last name, we would need to change the order of parameters in the function, putting the first name last in the list.
+
+In TypeScript, we can also set a value that a parameter will be assigned if the user does not provide one, or if the user passes `undefined` in its place.
+These are called default-initialized parameters.
+Let's take the previous example and default the last name to `"Smith"`.
+
+```ts-ignore
+function buildName(firstName: string, lastName = "Smith") {
+    return firstName + " " + lastName;
+}
+
+let result1 = buildName("Bob");                  // works correctly now, returns "Bob Smith"
+let result2 = buildName("Bob", undefined);       // still works, also returns "Bob Smith"
+let result3 = buildName("Bob", "Adams", "Sr.");  // error, too many parameters
+let result4 = buildName("Bob", "Adams");         // ah, just right
+```
+
+Default-initialized parameters that come after all required parameters are treated as optional, and just like optional parameters, can be omitted when calling their respective function.
+This means optional parameters and trailing default parameters will share commonality in their types, so both
+
+```ts
+function buildName(firstName: string, lastName?: string) {
+    // ...
+}
+```
+
+and
+
+```ts
+function buildName(firstName: string, lastName = "Smith") {
+    // ...
+}
+```
+
+share the same type `(firstName: string, lastName?: string) => string`.
+The default value of `lastName` disappears in the type, only leaving behind the fact that the parameter is optional.
+
+Unlike plain optional parameters, default-initialized parameters don't *need* to occur after required parameters.
+If a default-initialized parameter comes before a required parameter, users need to explicitly pass `undefined` to get the default initialized value.
+For example, we could write our last example with only a default initializer on `firstName`:
+
+```ts-ignore
+function buildName(firstName = "Will", lastName: string) {
+    return firstName + " " + lastName;
+}
+
+let result1 = buildName("Bob");                  // error, too few parameters
+let result2 = buildName("Bob", "Adams", "Sr.");  // error, too many parameters
+let result3 = buildName("Bob", "Adams");         // okay and returns "Bob Adams"
+let result4 = buildName(undefined, "Adams");     // okay and returns "Will Adams"
+```
+
+# Rest Parameters
+
+Required, optional, and default parameters all have one thing in common: they talk about one parameter at a time.
+Sometimes, you want to work with multiple parameters as a group, or you may not know how many parameters a function will ultimately take.
+In JavaScript, you can work with the arguments directly using the `arguments` variable that is visible inside every function body.
+
+In TypeScript, you can gather these arguments together into a variable:
+
+```ts-ignore
+function buildName(firstName: string, ...restOfName: string[]) {
+    return firstName + " " + restOfName.join(" ");
+}
+
+let employeeName = buildName("Joseph", "Samuel", "Lucas", "MacKinzie");
+```
+
+*Rest parameters* are treated as a boundless number of optional parameters.
+When passing arguments for a rest parameter, you can use as many as you want; you can even pass none.
+The compiler will build an array of the arguments passed in with the name given after the ellipsis (`...`), allowing you to use it in your function.
+
+The ellipsis is also used in the type of the function with rest parameters:
+
+```ts-ignore
+function buildName(firstName: string, ...restOfName: string[]) {
+    return firstName + " " + restOfName.join(" ");
+}
+
+let buildNameFun: (fname: string, ...rest: string[]) => string = buildName;
+```
+
+### ~button /js/types
+NEXT: Types
+### ~

docs/js/lang.md

@@ -1,75 +0,0 @@
-# JavaScript and TypeScript
-
-You can write micro:bit programs in a subset of [TypeScript](https://www.typescriptlang.org), a superset of JavaScript.
-Many micro:bit programs, especially at the beginner's level, are just plain JavaScript. TypeScript introduces class-based 
-object-oriented programming, such as:
-
-```typescript
-class Greeter {
-    greeting: string;
-    constructor(message: string) {
-        this.greeting = message;
-    }
-    greet() {
-        return "Hello, " + this.greeting;
-    }
-}
-
-let greeter = new Greeter("world");
-basic.showString(greeter.greet())
-```
-
-This site is meant for teaching programming first, and JavaScript second. For this
-reason, we have stayed away from concepts that are specific to JavaScript (for
-example, prototype inheritance), and instead focused on ones common to most
-modern programming languages (for example, loops, lexically scoped variables,
-functions, classes, lambdas).
-
-We leverage TypeScript's [type inference](http://www.typescriptlang.org/docs/handbook/type-inference.html) so that
-students need not specify types when clear from context.
-
-## Supported language features
-
-* top-level code in the file: "Hello world!" really is just `basic.showString("Hello world!")`
-* [basic types](http://www.typescriptlang.org/docs/handbook/basic-types.html)
-* [variable declarations](http://www.typescriptlang.org/docs/handbook/variable-declarations.html): `let`, `const`, and `var`
-* [functions](http://www.typescriptlang.org/docs/handbook/functions.html) with lexical scoping and recursion
-
-### User-defined types and modules
-
-* [classes](http://www.typescriptlang.org/docs/handbook/classes.html) with fields, methods and constructors; `new` keyword
-* [enums](http://www.typescriptlang.org/docs/handbook/enums.html)
-* [namespaces](http://www.typescriptlang.org/docs/handbook/namespaces.html)  (a form of modules) 
-
-### Control-flow constructs
-
-* `if ... else if ... else` statements
-* `while` and `do ... while` loops
-* `for(;;)` loops (see below about `for ... in/of`)
-* `break/continue`; also with labeled loops
-* `switch` statement (on numbers only)
-* `debugger` statement for breakpoints
-
-### Expressions
-
-* conditional operator `? :`; lazy boolean operators
-* all arithmetic operators (including bitwise operators); note that in microcontroller targets
-  all arithmetic is performed on integers, also when simulating in the browser
-* strings (with a few common methods)
-* [string templates](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals) (`` `x is ${x}` ``)
-* arrow functions `() => ...`
-* array literals `[1, 2, 3]`
-
-
-## Unsupported language features
-
-We generally stay away from the more dynamic parts of JavaScript. 
-Things you may miss and we may implement:
-
-* exceptions (`throw`, `try ... catch`, `try ... finally`)
-* `for ... of` statements
-* object literals `{ foo: 1, bar: "two" }`
-* method-like properties (get/set accessors)
-* class inheritance
-
-If there is something you'd like to see, please file an issue at [GitHub](http://github.com/microsoft/pxt/issues).

docs/js/operators.md

@@ -0,0 +1,30 @@
+## Operators
+
+The following JavaScript operators are supported for the micro:bit.
+
+### ~hint
+Note that for the micro:bit all arithmetic is performed on integers, rather than floating point.
+This also is true when simulating in the browser.
+### ~
+
+# Assignment, arithmetic and bitwise
+
+* assignment operators - [read more](http://devdocs.io/javascript/operators/assignment_operators)
+* arithmetic operators - [read more](http://devdocs.io/javascript/operators/arithmetic_operators) 
+* bitwise operators - [read more](http://devdocs.io/javascript/operators/bitwise_operators)
+
+# Comparision and conditional
+
+* comparison operators - [read more](http://devdocs.io/javascript/operators/comparison_operators)
+* conditional operator - [read more](http://devdocs.io/javascript/operators/conditional_operator)
+
+## More
+
+* lambda functions `() => { ... }`
+* array literals `[1, 2, 3]`
+* strings, with a few common methods
+* [string templates](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals) (`` `x is ${x}` ``)
+
+### ~button /js/statements
+NEXT: Statements
+### ~

docs/js/sequence.md

@@ -1,6 +1,6 @@
-# Sequencing commands
+# Sequencing
 
-By calling one function after another, you can create an animation:
+By calling one function after another, in sequence, you can create an animation:
 
 ```typescript
 basic.showLeds(`
@@ -9,17 +9,55 @@ basic.showLeds(`
     . . # . .
     # . . . #
     . # # # .
-    `)
+    `);
 basic.showLeds(`
     . # . # .
     . . . . .
     . . . . .
     . # # # .
     # . . . #
-    `)
+    `);
 ```
 
-## The Semicolon
+### The semicolon 
 
-Coming soon...
+In JavaScript, the semicolon (;) is used to terminate (or end) a statement. However, in most
+cases, the semicolon is optional and can be omitted. So both code sequences below are 
+legal:
 
+```typescript
+basic.showNumber(1)
+basic.showNumber(2)
+```
+
+```typescript
+basic.showNumber(1); 
+basic.showNumber(2);
+```
+
+### The empty statement
+
+In JavaScript, there is the concept of an *empty statement*, which is whitespace followed by
+a semicolon in the context where a statement is expected.
+So, the following code is an infinite loop
+followed by a call to `showNumber` that will never execute:
+```typescript
+while(true) ;  
+basic.showNumber(1);
+```
+
+
+### ~hint
+For the micro:bit, we don't allow a program to contain an empty statement, such as shown above. 
+If you really want an empty statement, you need to use curly braces to delimit an empty statement block:
+```typescript
+while(true) { } 
+basic.showNumber(1);
+```
+### ~
+
+[Read more](http://inimino.org/~inimino/blog/javascript_semicolons) about semicolons in JavaScript.
+
+### ~button /js/variables
+NEXT: Variable Declarations
+### ~

docs/js/statements.md

@@ -0,0 +1,33 @@
+# Statements
+
+The following JavaScript statements are supported for the micro:bit:
+
+## Variable declarations
+* `const` statement - [read more](http://devdocs.io/javascript/statements/const)
+* `let` statement - [read more](http://devdocs.io/javascript/statements/let)
+* `var` statement - [read more](http://devdocs.io/javascript/statements/var)
+
+## Block-structured statements
+
+* `{ }` block statement - [read more](http://devdocs.io/javascript/statements/block)
+* `if-else` conditional statement - [read more](http://devdocs.io/javascript/statements/if...else)
+* `while` loop - [read more](http://devdocs.io/javascript/statements/do...while)
+* `do-while` loop - [read more](http://devdocs.io/javascript/statements/do...while)
+* `for(;;)` loop - [read more](http://devdocs.io/javascript/statements/for)
+* `switch` statement (on numbers only) - [read more](http://devdocs.io/javascript/statements/switch)
+
+## Control-flow commands
+
+* `break` statement - [read more](http://devdocs.io/javascript/statements/break)
+* `continue` statement - [read more](http://devdocs.io/javascript/statements/continue)
+* `return` statement - [read more](http://devdocs.io/javascript/statements/return)
+* `debugger` statement for breakpoints - [read more](http://devdocs.io/javascript/statements/debugger)
+
+## Labelling statements
+
+* labelled statement - [read more](http://devdocs.io/javascript/statements/label)
+* `default` statement - [read more](http://devdocs.io/javascript/statements/default)
+
+### ~button /js/functions
+NEXT: Functions
+### ~

docs/js/types.md

@@ -0,0 +1,140 @@
+# Types
+
+For programs to be useful, we need to be able to work with some of the simplest units of data: 
+numbers, strings, structures, boolean values, and the like.
+
+# Boolean
+
+The most basic datatype is the simple true/false value, which is called a `boolean` value.
+
+```ts
+let isDone: boolean = false;
+```
+
+# Number
+
+### ~ hint 
+In JavaScript, `numbers` are floating point values.
+However, for the micro:bit, `numbers` are integer values.
+### ~
+
+Integer values can be specified via decimal, hexadecimal and octal notation:
+
+```ts
+let decimal: number = 42;
+let hex: number = 0xf00d;
+let binary: number = 0b1010;
+let octal: number = 0o744;
+```
+
+# String
+
+As in other languages, we use the type `string` to refer to textual data.
+Use double quotes (`"`) or single quotes (`'`) to surround string data.
+
+```ts
+let color: string = "blue";
+color = 'red';
+```
+
+You can also use *template strings*, which can span multiple lines and have embedded expressions.
+These strings are surrounded by the backtick/backquote (`` ` ``) character, and embedded expressions are of the form `${ expr }`.
+
+```ts
+let fullName: string = `Bob Bobbington`;
+let age: number = 37;
+let sentence: string = `Hello, my name is ${ fullName }.
+
+I'll be ${ age + 1 } years old next month.`
+```
+
+This is equivalent to declaring `sentence` like so:
+
+```ts
+let sentence: string = "Hello, my name is " + fullName + ".\n\n" +
+    "I'll be " + (age + 1) + " years old next month."
+```
+
+# Array
+
+Arrays allow you to work with an expandable sequence of values, addressed by an integer-valued index.
+Array types can be written in one of two ways.
+In the first, you use the type of the elements followed by `[]` to denote an array of that element type:
+
+```ts
+let list: number[] = [1, 2, 3];
+```
+
+The second way uses a generic array type, `Array<elemType>`:
+
+```ts
+let list: Array<number> = [1, 2, 3];
+```
+
+### ~hint
+For the micro:bit, all elements of an array must have the same type.
+### ~
+
+
+# Enum
+
+A helpful addition to the standard set of datatypes from JavaScript is the `enum`.
+As in languages like C#, an enum is a way of giving more friendly names to sets of numeric values.
+
+```ts
+enum Color {Red, Green, Blue};
+let c: Color = Color.Green;
+```
+
+By default, enums begin numbering their members starting at `0`.
+You can change this by manually setting the value of one of its members.
+For example, we can start the previous example at `1` instead of `0`:
+
+```ts
+enum Color {Red = 1, Green, Blue};
+let c: Color = Color.Green;
+```
+
+Or, even manually set all the values in the enum:
+
+```ts
+enum Color {Red = 1, Green = 2, Blue = 4};
+let c: Color = Color.Green;
+```
+
+# Any
+
+The TypeScript type `any` is not supported in the micro:bit.
+
+
+# Void
+
+`void` is the absence of having any type at all.
+You may commonly see this as the return type of functions that do not return a value:
+
+```ts
+function warnUser(): void {
+    basic.showString("This is my warning message");
+}
+```
+
+Declaring variables of type `void` is not useful.
+
+# Type Inference
+
+In TypeScript, there are several places where type inference is used to provide type information when there is
+no explicit type annotation. For example, in this code
+
+```ts
+let x = 3;
+let y = x + 3
+```
+
+The type of the `x` variable is inferred to be `number`. Similarly, the type of `y` variable also is inferred to be `number`.
+This kind of inference takes place when initializing variables and members, 
+setting parameter default values, and determining function return types.
+
+
+### ~button /js/classes
+NEXT: Classes
+### ~

docs/js/variables.md

@@ -0,0 +1,121 @@
+# Variable Declarations
+
+Declaring a variable in JavaScript has always traditionally been done with the `var` keyword.
+
+```typescript
+var a = 10;
+```
+
+The `var` construct has some [problems](http://www.typescriptlang.org/docs/handbook/variable-declarations.html), 
+which is why `let` statements were introduced. Apart from the keyword used, `let` statements are written 
+the same way `var` statements are.
+
+```typescript
+let a = 10;
+```
+
+The key difference is not in the syntax, but in the semantics, which we'll now dive into.
+
+## Block-scoping
+
+When a variable is declared using `let`, it uses what some call *lexical-scoping* or *block-scoping*.
+Unlike variables declared with `var` whose scopes leak out to their containing function, 
+block-scoped variables are not visible outside of their nearest containing block or `for`-loop.
+
+```typescript
+function f(input: boolean) {
+    let a = 100;
+
+    if (input) {
+        // Still okay to reference 'a'
+        let b = a + 1;
+        return b;
+    }
+
+    // Error: 'b' doesn't exist here
+    return b;
+}
+```
+
+Here, we have two local variables `a` and `b`.
+`a`'s scope is limited to the body of `f` while `b`'s scope is limited to the containing `if` statement's block.
+
+Another property of block-scoped variables is that they can't be read or written to before they're actually declared.
+While these variables are "present" throughout their scope, all points up until their declaration are part of their *temporal dead zone*.
+This is just a sophisticated way of saying you can't access them before the `let` statement, and luckily TypeScript will let you know that.
+
+```typescript-ignore
+a++; // illegal to use 'a' before it's declared;
+let a;
+```
+
+## Re-declarations
+
+With `var` declarations, it doesn't matter how many times you declare your variables, you just get one:
+
+```typescript
+var x = 10;
+var x = 20; 
+```
+
+In the above example, all declarations of `x` actually refer to the *same* `x`, and this is perfectly valid.
+This often ends up being a source of bugs. Thankfully, `let` declarations are not as forgiving.
+
+```typescript
+let x = 10;
+let x = 20; // error: can't re-declare 'x' in the same scope
+```
+
+## Shadowing
+
+The act of introducing a new name in a more deeply nested scope is called *shadowing*.
+It is a bit of a double-edged sword in that it can introduce certain bugs on its own in the 
+event of accidental shadowing, while also preventing certain bugs.
+For instance, imagine a `sumMatrix` function using `let` variables.
+
+```typescript
+function sumMatrix(matrix: number[][]) {
+    let sum = 0;
+    for (let i = 0; i < matrix.length; i++) {
+        var currentRow = matrix[i];
+        for (let i = 0; i < currentRow.length; i++) {
+            sum += currentRow[i];
+        }
+    }
+
+    return sum;
+}
+```
+
+This version of the loop will actually perform the summation correctly because the inner loop's `i` shadows `i` from the outer loop.
+Shadowing should *usually* be avoided in the interest of write clearer code, such as
+
+```typescript
+function sumMatrix(matrix: number[][]) {
+    let sum = 0;
+    for (let i = 0; i < matrix.length; i++) {
+        var currentRow = matrix[i];
+        for (let j = 0; j < currentRow.length; j++) {
+            sum += currentRow[j];
+        }
+    }
+
+    return sum;
+}
+```
+While there are some scenarios where it may be fitting to take advantage of it, you should use your best judgement.
+
+# `const` declarations
+
+`const` declarations are another way of declaring variables.
+
+```typescript
+const numLivesForCat = 9;
+```
+
+They are like `let` declarations but, as their name implies, their value cannot be changed once they are bound.
+In other words, they have the same scoping rules as `let`, but you can't re-assign to them.
+
+### ~button /js/operators
+NEXT: Operators
+### ~

docs/lessons/bop-it/activity.md

@@ -62,7 +62,7 @@ export function newAction() {
 
 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`.
 
-```
+```blocks
 // **. . .**
 input.onButtonPressed(Button.B, () => {
     basic.showNumber(game.score(), 150) // ***

docs/lessons/charting/challenge.md

@@ -86,3 +86,7 @@ Have fun reviewing your simulation and analyze the acceleration by chart the Exc
 * The first person and second person take turns tilting the micro:bit in the "x" direction while the other player charts the data on the micro:bit!
 * Review and analyze the actual micro:bit 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
+microbit-radio
+```

docs/lessons/happy-birthday/challenges.md

@@ -34,8 +34,7 @@ Let's code the third part of Happy Birthday!
 
 To do this, you need to add blocks after the last line of the `play` blocks. We want to continue to adding musical chords with the `play` block. Then insert the appropriate chord blocks `G`, `E`, `C`, `B`, `A` to complete the third part of the song. Modify your code so that your code looks like this.
 
-``` blocks
-
+```blocks
 music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
 music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
 music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
@@ -57,8 +56,7 @@ music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
 music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quater));
 music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
 basic.pause(100);
-
-``` 
+```
 
 * click *run * to see if the code works as expected.
 

docs/lessons/headbands/activity.md

@@ -5,7 +5,7 @@
 Your beginning code should look like this:
 
 ```blocks 
-let coll = (<string[]>[])
+let coll: string[] = []
 coll.push("puppy")
 coll.push("clock")
 coll.push("night")
@@ -27,7 +27,7 @@ game.startCountdown(30000)
 Let's add more words for the player to act out! But first, we need to increase the time in one round to give the player more time get through all the words. Let's change the `game->start countdown` statement.
 
 ```blocks
-let coll = (<string[]>[])
+let coll: string[] = []
 coll.push("puppy")
 coll.push("clock")
 coll.push("night")
@@ -52,7 +52,8 @@ game.startCountdown(60000)
 Now let's add 5 more words to our list of charade words. Right above the the line `word:=coll->at(index)` add 5 lines that say `coll->add("")`. In this example, we will add the words **bicycle, telephone, sun, car, and ant** but you can add whatever words you like.
 
 ```blocks
-let coll.push("puppy")
+let coll: string[] = []
+coll.push("puppy")
 coll.push("clock")
 coll.push("night")
 coll.push("cat")

docs/lessons/headbands/quiz-answers.md

@@ -19,7 +19,7 @@ A 'collection' is a group of variables of the same type stored together. A 'coll
 ## 2. Consider the following lines of code.
 
 ```blocks
-let coll = (<string[]>[])
+let coll: string[] = []
 coll.push("puppy")
 coll.push("clock")
 ```
@@ -35,7 +35,7 @@ basic.showString(coll[0], 150)
 ## 3. Consider the following lines of code.
 
 ```blocks
-let coll = (<string[]>[])
+let coll: string[] = []
 coll.push("puppy")
 coll.push("clock")
 coll.push("cat")
@@ -52,7 +52,7 @@ basic.showString(coll[2], 150)
 ## 4. Consider the following line of code.
 
 ```blocks
-let coll = (<string[]>[])
+let coll: string[] = []
 ```
 
 Write the five (5) lines of code that will add the following five words to `data->coll`: puppy, clock, night, cat, cow.
@@ -60,7 +60,8 @@ Write the five (5) lines of code that will add the following five words to `data
 <br/>
 
 ```blocks
-let coll.push("puppy")
+let coll: string[] = []
+coll.push("puppy")
 coll.push("clock")
 coll.push("night")
 coll.push("cat")
@@ -72,6 +73,7 @@ coll.push("cow")
 <br/>
 
 ```blocks
+let coll: string[] = []
 let index = Math.random(coll.length)
 let word = coll[index]
 ```

docs/lessons/headbands/quiz.md

@@ -39,7 +39,7 @@ coll.push("cat")
 
 ## 4. Write the five (5) lines of code that will add the following five words to `data->coll`: puppy, clock, night, cat, cow.
 
-```
+```ts
 let coll = (<string[]>[])
 ```
 

docs/lessons/hero/activity.md

@@ -211,7 +211,7 @@ Let's setup the logic for the food and the ghost to be in different quadrants. F
 let hero = game.createSprite(2, 2);
 let food = game.createSprite(4, 4);
 let ghost = game.createSprite(0, 0);
-let ghost.change(LedSpriteProperty.Blink, 100);
+ghost.change(LedSpriteProperty.Blink, 100);
 food = led.brightness() == 8;
 while (true) {
     basic.pause(400);
@@ -265,7 +265,7 @@ while (true) {
     }
 
 }
-0.set(LedSpriteProperty.X, 4);
+ghost.set(LedSpriteProperty.X, 4);
 
 
 ```

docs/lessons/pogo.md

@@ -42,3 +42,7 @@ radio.onDataReceived(() => { })
 * learn how to conditionally run code depending on whether a condition is true or not
 * learn how to run code when an input button is pressed
 * learn how to pause your code for the specified number of milliseconds
+
+```package
+microbit-radio
+```

docs/lessons/pogo/activity.md

@@ -162,3 +162,7 @@ radio.onDataReceived(() => {
 Connect the first micro:bit to your computer using your USB cable and run the pogo script on it.
 Connect the second micro:bit to your computer using your USB cable and run the pogo script on it.
 The first person and second person take turns jumping in the “y” direction while the other player uses the micro:bit to track the results on the micro:bit!
+
+```package
+microbit-radio
+```

docs/lessons/seismograph.md

@@ -33,3 +33,7 @@ radio.receiveNumber();
 * learn how to return the sum of the two numbers
 * learn how to get acceleration value in milli-gravitys 
 * learn how to read the connector value as analog as a value comprised between 0 and 1023
+
+```package
+microbit-radio
+```

docs/lessons/seismograph/challenge.md

@@ -195,4 +195,6 @@ Let's select Style 10 as an example.
 * The first person and second person take shaking or moving the micor:bit in any direction while the other player charts the data on the micro:bit!
 * Review and analyze the actual micro:bit device acceleration data on Excel
 
-
+```package
+microbit-radio
+```

docs/open-source.md

@@ -2,8 +2,13 @@
 
 The editor is open source on GitHub under the MIT license. Contributions are welcome, please check our GitHub repos.
 
-### Repos
+### Source Code
 
 * [microsoft/pxt-microbit](https://github.com/Microsoft/pxt-microbit), PXT target for BBC micro:bit, also includes the documentation.
 * [microbit/pxt](https://github.com/Microsoft/pxt), programming experience toolkit (PXT)
 * [microsoft/pxt-microbit-core](https://github.com/Microsoft/pxt-microbit-core), Yotta module used to build the BBC micro:bit runtime
+
+## 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). 

docs/projects.md

@@ -14,7 +14,7 @@ Here are some cool projects that you can build with your micro:bit!
   "imageUrl": "/static/mb/projects/a2-buttons.png"
 },{
   "name": "Love Meter",
-  "url":"/projects/lover-meter",
+  "url":"/projects/love-meter",
   "imageUrl":"/static/mb/projects/a3-pins.png"
 },{
   "name": "Rock Paper Scissors",
@@ -47,5 +47,6 @@ Here are some cool projects that you can build with your micro:bit!
 }]
 ```
 
+### See Also
 
-
+[Flashing Heart](/projects/flashing-heart), [Smiley Buttons](/projects/smiley-buttons), [Love Meter](/projects/love-meter), [Rock Paper Scissors](/projects/rock-paper-scissors), [Compass](/projects/compass), [Hack your headphones](/projects/hack-your-headphones), [Banana keyboard](/projects/banana-keyboard), [Telegraph](/projects/telegraph), [Radio](/projects/radio), [Watch](/projects/the-watch)

docs/projects/messenger.md

@@ -0,0 +1,65 @@
+# messenger
+
+![](/static/mb/projects/a9-radio.png)
+
+Use the radio to create an app that sends "YO" messages.
+
+## Step 1
+
+Use [on button pressed](/reference/input/on-button-pressed) to send the number "0" over radio.
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    radio.sendNumber(0);
+});
+```
+
+## Step 2
+
+Use [radio on data received](/reference/radio/on-data-received) display "YO" when the number ``0`` is received
+by radio.
+
+```blocks
+let message = 0;
+radio.onDataReceived(() => {
+    message = radio.receiveNumber();
+    if (message == 0) {
+        basic.showString("YO")
+    }
+})
+```
+
+Compile the program and **upload the same .hex file to 2 devices!**
+
+## Step 3
+
+Use [on button pressed](/reference/input/on-button-pressed) to send the number "1" over radio.
+
+```blocks
+input.onButtonPressed(Button.B, () => {
+    radio.sendNumber(1);
+});
+```
+
+## Step 4
+
+Add blocks in [radio on data received](/reference/radio/on-data-received) to display "BYE" when the number ``1`` is received
+by radio.
+
+```blocks
+let message = 0;
+radio.onDataReceived(() => {
+    message = radio.receiveNumber();
+    if (message == 0) {
+        basic.showString("YO")
+    }
+    if (message == 1) {
+        basic.showString("BYE")
+    }
+})
+```
+
+
+```package
+microbit-radio
+```

docs/projects/radio-challenges.md

@@ -89,4 +89,8 @@ Have fun reviewing your simulation and analyze the acceleration by chart the Exc
 
 ### ~button /projects/the-watch
 NEXT: The Watch
-### ~
+### ~
+
+```package
+microbit-radio
+```

docs/projects/telegraph-challenges.md

@@ -1,12 +1,12 @@
 # telegraph activity 
 
-Build a telgraph.
+Build a telegraph.
 
 # micro:bit telegraph
 
 Have you ever tried to communicate through a telegraph? Let's try coding a "Telegraph" on two BBC micro:bits !
 
-Complete the following [guided tutorial](/projects/telegraph), your hack should look like this:
+Complete the following [tutorial](/projects/telegraph), your hack should look like this:
 
 ![](/static/mb/lessons/telegraph-0.png)
 

docs/projects/the-watch.md

@@ -148,12 +148,6 @@ Trim any leftover fabric, threads or tape.
 
 Your watch is ready!
 
-### ~avatar avatar
-
-Excellent, you're ready to continue with the [challenges](/projects/rock-paper-scissors)!
-
-### ~
-
 ### Acknowledgements
 
 Artistic design by Melinda Hoeneisen.

docs/reference.md

@@ -22,15 +22,19 @@ control.inBackground(() => {
     
 });
 ```
-
 ## Advanced
-
+  
 ```namespaces
 devices.tellCameraTo(MesCameraEvent.TakePhoto);
 bluetooth.onBluetoothConnected(() => {});
 ```
-
+  
 ```package
+microbit-radio
 microbit-devices
 microbit-bluetooth
-```
+```
+
+### See Also
+
+[basic](/reference/basic), [input](/reference/input), [music](/reference/music), [led](/reference/led), [Math (blocks)](/blocks/math), [String](/reference/types/string), [game](/reference/game), [images](/reference/images), [pins](/reference/pins), [serial](/reference/serial), [control](/reference/control), [radio](/reference/radio), [devices](/reference/devices), [bluetooth](/reference/bluetooth)

docs/reference/String.md

@@ -3,3 +3,7 @@
 ```cards
 String.fromCharCode(0);
 ```
+
+### See Also
+
+[fromCharCode](/reference//math/string-from-char-code)

docs/reference/basic.md

@@ -32,3 +32,7 @@ basic.showAnimation(`
 . . . . .
 `);
 ```
+
+### See Also
+
+[showNumber](/reference/basic/show-number), [showLeds](/reference/basic/show-leds), [showString](/reference/basic/show-string), [clearScreen](/reference/basic/clear-screen), [forever](/reference/basic/forever), [pause](/reference/basic/pause), [plotLeds](/reference/basic/plot-leds), [showAnimation](/reference/basic/show-animation)

docs/reference/basic/show-animation.md

@@ -23,7 +23,7 @@ In this animation, each row is 15 spaces wide because
 there are three frames in the animation, and each frame is
 five spaces wide, just like the screen on the BBC micro:bit.
 
-```
+```blocks
 basic.showAnimation(`
 . . # . . . # # # . . # # # .
 . # # . . . . . # . . . . # .
@@ -47,7 +47,7 @@ In this animation, each row is 30 spaces wide because
 there are six frames in the animation, and each frame is
 five spaces wide, just like the screen.
 
-```
+```blocks
 basic.showAnimation(`
 . . . . . # . . . . . . . . . . . . . # . . . . . # . . . .
 . . # . . . . . . . . . # . . . . . . . . . # . . . . . . .

docs/reference/bluetooth.md

@@ -21,4 +21,8 @@ bluetooth.onBluetoothDisconnected(() => {
 
 ```package
 microbit-bluetooth
-```
+```
+
+### See Also
+
+[startAccelerometerService](/reference/bluetooth/start-accelerometer-service), [startButtonService](/reference/bluetooth/start-button-service), [startIOPinService](/reference/bluetooth/start-io-pin-service), [startLEDService](/reference/bluetooth/start-led-service), [startMagnetometerService](/reference/bluetooth/start-magnetometer-service), [startTemperatureService](/reference/bluetooth/start-temperature-service), [uartRead](/reference/bluetooth/uart-read), [uartWrite](/reference/bluetooth/uart-write), [onBluetoothConnected](/reference/bluetooth/on-bluetooth-connected), [onBluetoothDisconnected](/reference/bluetooth/on-bluetooth-disconnected)

docs/reference/control.md

@@ -8,3 +8,7 @@ control.inBackground(() => {
 });
 control.reset();
 ```
+
+### See Also
+
+[inBackground](/reference/control/in-background), [reset](/reference/control/reset)

docs/reference/devices.md

@@ -17,3 +17,11 @@ devices.onSignalStrengthChanged(() => {
     
 });
 ```
+
+```package
+microbit-devices
+```
+
+### See Also
+
+[tellCameraTo](/reference/devices/tell-camera-to), [tellRemoteControlTo](/reference/devices/tell-remote-control-to), [raiseAlertTo](/reference/devices/raise-alert-to), [onNotified](/reference/devices/on-notified), [onGamepadButton](/reference/devices/on-gamepad-button), [signalStrength](/reference/devices/signal-strength), [onSignalStrengthChanged](/reference/devices/on-signal-strength-changed)

docs/reference/devices/on-notified.md

@@ -0,0 +1,38 @@
+# On Signal Strength Changed
+
+Register code to run when the signal strength of the paired device changes.
+
+### ~hint
+
+The functions in the ``devices`` namespace allow the BBC micro:bit to communicate with a separate (remote) device, 
+such as a smartphone, over Bluetooth (Smart).
+The set of supported events will depend on the remote device and the BBC micro:bit apps available for the remote device.
+
+### ~
+
+
+```sig
+devices.onNotified(MesDeviceInfo.IncomingCall, () => {})
+```
+
+### Parameters
+
+* ``body``: code to run when the signal strength changes.
+
+### Examples
+
+Display the signal strength on screen:
+
+```blocks
+devices.onNotified(MesDeviceInfo.IncomingCall, () => {
+    basic.showString("RING RING")
+})
+```
+
+### See Also
+
+[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [signal strength](/reference/devices/signal-strength)
+
+```package
+microbit-devices
+```

docs/reference/devices/on-signal-strength-changed.md

@@ -23,7 +23,7 @@ devices.onSignalStrengthChanged(() => {})
 
 Display the signal strength on screen:
 
-```
+```blocks
 devices.onSignalStrengthChanged(() => {
     basic.showNumber(devices.signalStrength(), 150)
 })

docs/reference/devices/tell-microphone-to.md

@@ -1,47 +0,0 @@
-# tell microphone to
-
-The tell microphone to function.
-
-Access the audio recording capabilities of the device using the ``tell microphone to`` function.
-
-The functions in the antenna namespace allow the BBC micro:bit to communicate with a separate (remote) device, such as a smartphone, over Bluetooth (Smart). The set of supported events will depend on the remote device and the BBC micro:bit apps available for the remote device.
-
-### Block Editor
-
-![](/static/mb/tell-microphone-to-0.png)
-
-### JavaScript
-
-```
-export function tellMicrophoneTo(event: string)
-```
-
-### Parameters
-
-* event - an event identifier
-
-### Event values
-
-* play
-* stop
-* pause
-* forward
-* rewind
-* volume up
-* volume down
-* previous track
-* next track
-
-### Examples
-
-To tell the connected device to start recording audio
-
-```
-devices.tellMicrophoneTo("start capture")
-```
-
-To tell the connected device to stop recording audio
-
-```
-devices.tellMicrophoneTo("stop capture")
-```

docs/reference/game.md

@@ -9,3 +9,7 @@ game.startCountdown(10000);
 game.gameOver();
 game.setScore(0);
 ```
+
+### See Also
+
+[addScore](/reference/game/change-score-by), [score](/reference/game/score), [startCountdown](/reference/game/start-countdown), [gameOver](/reference/game/game-over), [setScore](/reference/game/set-score)

docs/reference/game/clear.md

@@ -6,7 +6,7 @@ Turn off all the pixels in an [Image](/reference/images/image).
 
 ### JavaScript
 
-```
+```sig
 export function clear(img: micro_bit.Image)
 ```
 
@@ -18,7 +18,7 @@ export function clear(img: micro_bit.Image)
 
 The following example turns off the pixels of `img` when the A input button is pressed:
 
-```
+```blocks
 let img = images.createImage(`
 . . . . .
 . # # # .

docs/reference/game/game-library.md

@@ -1,148 +0,0 @@
-# Game Library
-
-The game library supports simple single-player time-based games. The player has a **sprite**, number of **lives** and a **score**. The game has a sprite, number of **levels** and a **countdown clock**.  The general goal of a game will be to move the sprite and achieve a top score before time runs out or the number of lives goes to zero.
-
-The code below shows a simple game where the user gets to press the button ``A`` as much times as possible in 10 seconds.
-
-```blocks
-input.onButtonPressed(Button.A, () => {
-    game.addScore(1)
-})
-game.startCountdown(10000)
-```
-
-### [Create sprite](/reference/game/create-sprite)
-
-Create sprite with x, y coordinates and returns a LED Sprite. Create a new LED sprite.
-
-![](/static/mb/create-sprite-0.png)
-
-```
-export function createSprite(x: number, y: number) : micro_bitSprites.LedSprite
-```
-
-### [Move](/reference/game/move)
-
-Sprite move by a certain number
-
-![](/static/mb/game-library/move-0.png)
-
-```
-export function move(_this: micro_bitSprites.LedSprite, leds: number)
-```
-
-### [Turn](/reference/game/turn)
-
-Rotates a sprite to the right by a certain number of degrees
-
-![](/static/mb/game-library/turn-0.png)
-
-```
-export function turnRight(_this: micro_bitSprites.LedSprite, degrees: number)
-```
-
-Rotates a sprite to the left by a certain number of degrees
-
-```
-export function turnLeft(_this: micro_bitSprites.LedSprite, degrees: number)
-```
-
-### [Change](/reference/game/change)
-
-Sprite will change the x position by this number
-
-![](/static/mb/change-0.png)
-
-```
-export function changeXBy(_this: micro_bitSprites.LedSprite, x: number)
-```
-
-Sprite will change the y position by this number
-
-```
-export function changeYBy(_this: micro_bitSprites.LedSprite, y: number)
-```
-
-### [Set](/reference/game/set)
-
-Sprite will change the x position by this number
-
-```
-export function setX(_this: micro_bitSprites.LedSprite, x: number)
-```
-
-Sprite will change the y position by this number
-
-![](/static/mb/change-0.png)
-
-```
-export function changeYBy(_this: micro_bitSprites.LedSprite, y: number)
-```
-
-### [If on edge, bounce](/reference/game/if-on-edge-bounce)
-
-Sprite - If the sprite is on the edge, the sprite will bounce
-
-![](/static/mb/game-library/if-on-edge-bounce-0.png)
-
-```
-export function ifOnEdgeBounce(_this: micro_bitSprites.LedSprite)
-```
-
-### [Change score by](/reference/game/change-score-by)
-
-When a player achieves a goal, you can increase the game score
-
-* add score points to the current score
-
-![](/static/mb/game-library/pic1.png)
-
-```
-export function addScore(points: number)
-```
-
-### [Score](/reference/game/score)
-
-* set the current score to a particular value.
-
-```
-export function setScore(value: number)
-```
-
-* get the current score value
-
-![](/static/mb/game-library/pic2.png)
-
-```
-export function score() : number
-```
-
-### [Countdown](/reference/game/start-countdown)
-
-If your game has a time limit, you can start a countdown in which case `game->current time` returns the remaining time.
-
-* start a countdown with the maximum duration of the game in milliseconds.
-
-![](/static/mb/game-library/pic3.png)
-
-```
-export function startCountdown(ms: number)
-```
-
-### [Game over](/reference/game/game-over)
-
-If the `life` reaches zero or the time expires (see countdown), the game enters the **game over** mode. When the game is over, `game->is running` returns false
-
-* check if the game still running.
-
-```
-let running = game.isRunning()
-```
-
-You can also end the game by calling the `game -> game over` function:
-
-![](/static/mb/game-library/pic0.png)
-
-```
-game.gameOver()
-```

docs/reference/game/position.md

@@ -2,12 +2,12 @@
 
 Reports the x position of a sprite on the LED screen
 
-```
+```sig
 export function x(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the y position of a sprite on the LED screen
 
-```
+```sig
 export function y(_this: micro_bitSprites.LedSprite) : number
 ```

docs/reference/game/reports.md

@@ -4,24 +4,24 @@ Reports the x or y position,  the current direction of a sprite, or the brightne
 
 Reports the x position of a sprite on the LED screen
 
-```
+```sig
 export function x(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the y position of a sprite on the LED screen
 
-```
+```sig
 export function y(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the brightness of a sprite on the LED screen
 
-```
+```sig
 export function brightness(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the current direction of a sprite on the LED screen
 
-```
+```sig
 export function direction(_this: micro_bitSprites.LedSprite) : number
 ```

docs/reference/game/set-score.md

@@ -0,0 +1,30 @@
+# Set Score
+
+Sets the current score.
+
+```sig
+game.setScore(1)
+```
+### Parameters
+
+* a [number](/reference/types/number) that represents the new score.
+
+### Examples
+
+This program is a simple game.
+Press button ``A`` as much as possible to increase the score. 
+Press ``B`` to display the score and reset the score.
+
+```blocks
+input.onButtonPressed(Button.B, () => {
+    basic.showNumber(game.score())
+    game.setScore(0)
+})
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1)
+})
+```
+
+### See Also
+
+[score](/reference/game/score), [start countdown](/reference/game/start-countdown)

docs/reference/images.md

@@ -18,3 +18,7 @@ images.createBigImage(`
 . . . . .
 `);
 ```
+
+### See Also
+
+[createImage](/reference/images/create-image), [createBigImage](/reference/images/create-big-image)

docs/reference/images/pixel.md

@@ -6,7 +6,7 @@ Get the state of a pixel in an [Image](/reference/images/image).
 
 ### JavaScript
 
-```
+```sig
 export function pixel(_this: micro_bit.Image, x: number, y: number) : boolean
 ```
 
@@ -29,7 +29,7 @@ This example gets the state of pixel `0, 0` in the `img` variable:
 
 ### ~hide
 
-```
+```blocks
 let img = images.createImage(`
 . . # . . . . . . .
 . # . # . . . # . .
@@ -41,7 +41,7 @@ let img = images.createImage(`
 
 ### ~
 
-```
+```typescript-ignore
 let state = img.pixel(0, 0)
 ```
 

docs/reference/images/plot-frame.md

@@ -6,7 +6,7 @@ Display an [Image](/reference/images/image) on the BBC micro:bit's [LED screen](
 
 ### JavaScript
 
-```
+```sig
 export function plotFrame(_this: micro_bit.Image, index: number)
 ```
 
@@ -20,7 +20,7 @@ The `plot frame` function takes the index of the frame (if there are two frames,
 
 ### Example
 
-```
+```blocks
 let img = images.createImage(`
 # . . . # # . . . #
 . # . # . . # # # .

docs/reference/images/plot-image.md

@@ -6,7 +6,7 @@ Display an [Image](/reference/images/image) on the BBC micro:bit's [LED screen](
 
 ### JavaScript
 
-```
+```sig
 export function plotImage(_this: micro_bit.Image, xOffset: number)
 ```
 
@@ -20,7 +20,7 @@ The `show image` function has a built in delay of 400ms after display of the ima
 
 ### Example
 
-```
+```blocks
 let img = images.createImage(`
 # . . . # # . . . #
 . # . # . . # # # .

docs/reference/images/set-pixel.md

@@ -6,7 +6,7 @@ Set the on/off state of pixel in an [Image](/reference/images/image).
 
 ### JavaScript
 
-```
+```sig
 export function setPixel(_this: micro_bit.Image, x: number, y: number, value: boolean)
 ```
 
@@ -24,7 +24,7 @@ To figure out the ``x``, ``y`` coordinates, see [LED screen](/device/screen).
 
 The following example creates an image and stores it in the `img` variable. The `set pixel` function sets the centre pixel off, before `img` is shown using `show image`.
 
-```
+```blocks
 let img = images.createImage(`
 . . # . .
 . # . # .

docs/reference/images/show-frame.md

@@ -6,7 +6,7 @@ Display an [Image](/reference/images/image) on the BBC micro:bit's [LED screen](
 
 ### JavaScript
 
-```
+```sig
 export function showFrame(img: micro_bit.Image, frame: number)
 ```
 
@@ -16,11 +16,11 @@ export function showFrame(img: micro_bit.Image, frame: number)
 
 ### Difference from `plot frame`
 
-The `show frame` function is the same as [plot frame](/reference/image/plot-frame), but contains a built-in delay after the LED screen has been updated (whereas `plot frame` has no built-in delay)
+The `show frame` function is the same as [plot frame](/reference/images/plot-frame), but contains a built-in delay after the LED screen has been updated (whereas `plot frame` has no built-in delay)
 
 ### Example
 
-```
+```blocks
 let img = images.createImage(`
 # . . . # # . . . #
 . # . # . . # # # .

docs/reference/images/width.md

@@ -20,7 +20,7 @@ The following example gets the width of `img` and stores it in the `w` variable:
 
 ### ~hide
 
-```
+```blocks
 let img = images.createImage(`
 . . # . . . . . . .
 . # . # . . . # . .
@@ -32,7 +32,7 @@ let img = images.createImage(`
 
 ### ~
 
-```
+```typescript-ignore
 let w = img.width()
 ```
 
@@ -40,7 +40,7 @@ let w = img.width()
 
 The following example uses the `width` function with a [for](/blocks/loops/for) loop to show each image frame on the screen:
 
-```
+```typescript
 let img2 = images.createImage(`
 . . # . . . # # # # . # # # .
 . # # . . . . . . # . . . # .

docs/reference/input.md

@@ -14,6 +14,7 @@ input.onPinPressed(TouchPin.P0, () => {
 });
 input.buttonIsPressed(Button.A);
 input.compassHeading();
+input.pinIsPressed(TouchPin.P0);
 input.temperature();
 input.acceleration(Dimension.X);
 input.lightLevel();
@@ -21,7 +22,6 @@ input.rotation(Rotation.Pitch);
 input.magneticForce(Dimension.X);
 input.runningTime();
 input.setAccelerometerRange(AcceleratorRange.OneG);
-input.pinIsPressed(TouchPin.P0);
 input.calibrate();
 input.onLogoDown(() => {
     
@@ -39,3 +39,7 @@ input.onShake(() => {
     
 });
 ```
+
+### See Also
+
+[onButtonPressed](/reference/input/on-button-pressed), [onGesture](/reference/input/on-gesture), [onPinPressed](/reference/input/on-pin-pressed), [buttonIsPressed](/reference/input/button-is-pressed), [compassHeading](/reference/input/compass-heading), [pinIsPressed](/reference/input/pin-is-pressed), [temperature](/reference/input/temperature), [acceleration](/reference/input/acceleration), [lightLevel](/reference/input/light-level), [rotation](/reference/input/rotation), [magneticForce](/reference/input/magnetic-force), [runningTime](/reference/input/running-time), [setAccelerometerRange](/reference/input/set-accelerometer-range), [calibrate](/reference/input/calibrate), [onLogoDown](/reference/input/on-logo-down), [onLogoUp](/reference/input/on-logo-up), [onScreenDown](/reference/input/on-screen-down), [onScreenUp](/reference/input/on-screen-up), [onShake](/reference/input/on-shake)

docs/reference/input/on-pin-released.md

@@ -0,0 +1,48 @@
+# On Pin Released
+
+Start an [event handler](/reference/event-handler) (part of the
+program that will run when something happens, like when a button is
+pressed).  This handler works when you release pin `0`, `1`, or `2`
+together with `GND`.  When you are using this function in a web
+browser, click and release the pins on the screen instead of the ones on the BBC
+micro:bit.
+
+If you hold the `GND` pin with one hand and touch pin `0`, `1`, or `2`
+with the other, a very small (safe) amount of electricity will flow
+through your body and back into the micro:bit. This is called
+**completing a circuit**. It's like you're a big wire!
+
+```sig
+input.onPinReleased(TouchPin.P0, () => {
+})
+```
+
+## ~hint
+
+This function works best when the BBC micro:bit is using batteries for power,
+instead of the USB cable.
+
+## ~
+
+## Parameters
+
+* ``name`` means the pin that is being released, either `P0`, `P1`, or `P2`
+
+### Example: pin pressed counter
+
+This program counts how many times you release the `P0` pin. 
+Every time you release the pin, the program shows the number of times on the screen.
+
+```blocks
+let count = 0
+basic.showNumber(count, 100)
+input.onPinReleased(TouchPin.P0, () => {
+    count = count + 1
+    basic.showNumber(count, 100)
+})
+```
+
+### See also
+
+[BBC micro:bit pins](/device/pins), [pin is pressed](/reference/input/pin-is-pressed), [analog read pin](/reference/pins/analog-read-pin), [analog write pin](/reference/pins/analog-write-pin), [digital read pin](/reference/pins/digital-read-pin), [digital write pin](/reference/pins/digital-write-pin)
+

docs/reference/led.md

@@ -18,3 +18,7 @@ led.toggle(0, 0);
 led.toggleAll();
 led.setDisplayMode(DisplayMode.BackAndWhite);
 ```
+
+### See Also
+
+[plot](/reference/led/plot), [unplot](/reference/led/unplot), [point](/reference/led/point), [brightness](/reference/led/brightness), [setBrightness](/reference/led/set-brightness), [stopAnimation](/reference/led/stop-animation), [plotBarGraph](/reference/led/plot-bar-graph), [fadeIn](/reference/led/fade-in), [fadeOut](/reference/led/fade-out), [plotAll](/reference/led/plot-all), [screenshot](/reference/led/screenshot), [toggle](/reference/led/toggle), [toggleAll](/reference/led/toggle-all), [setDisplayMode](/reference/led/set-display-mode)

docs/reference/led/plot-leds.md

@@ -3,11 +3,11 @@
 Display an [Image](/reference/images/image) on the BBC micro:bit's [LED screen](/device/screen). NOTE: `basic -> plot image` has been replaced by `basic -> show leds`.
 
 ```sig
-basic.plotLeds(`
+basic.showLeds(`
 . . . . .
 . # . # .
 . . # . .
-# ; . . #
+# . . . #
 . # # # .
 `)
 ```
@@ -16,14 +16,14 @@ basic.plotLeds(`
 
 * leds - a series of LED on/off states that form an image (see steps below)
 
-### Example: simley
+### Example: smiley
 
 ```blocks
-basic.plotLeds(`
+basic.showLeds(`
 . . . . .
 . # . # .
 . . # . .
-# ; . . #
+# . . . #
 . # # # .
 `)
 ```

docs/reference/led/stop-animation.md

@@ -9,14 +9,24 @@ led.stopAnimation()
 
 ### Example
 
-This program...
+This program sets up the ``stop animation`` part of the program,
+and then shows a string that you can stop with button ``B``.
 
 ```blocks
-basic.showString("STOP ME! STOP ME! PLEASE, WON'T SOMEBODY STOP ME?");
 input.onButtonPressed(Button.B, () => {
     led.stopAnimation();
 });
-'```
+basic.showString("STOP ME! STOP ME! PLEASE, WON'T SOMEBODY STOP ME?");
+```
+
+### ~hint
+
+It's important to set up ``stop animation`` before showing the
+animation, so the ``stop animation`` part of the program will be ready
+to go.
+
+### ~
+
 ### See Also
 
-
+[show animation](/reference/basic/show-animation)

docs/reference/music.md

@@ -12,3 +12,7 @@ music.tempo();
 music.changeTempoBy(20);
 music.setTempo(120);
 ```
+
+### See Also
+
+[playTone](/reference/music/play-tone), [ringTone](/reference/music/ring-tone), [rest](/reference/music/rest), [noteFrequency](/reference/music/note-frequency), [beat](/reference/music/beat), [tempo](/reference/music/tempo), [changeTempoBy](/reference/music/change-tempo), [setTempo](/reference/music/set-tempo)

docs/reference/pins.md

@@ -17,7 +17,12 @@ pins.servoWritePin(AnalogPin.P0, 180);
 pins.servoSetPulse(AnalogPin.P0, 1500);
 pins.i2cReadNumber(0, NumberFormat.Int8LE);
 pins.i2cWriteNumber(0, 0, NumberFormat.Int8LE);
+pins.spiWrite(0);
 pins.setPull(DigitalPin.P0, PinPullMode.PullDown);
 pins.analogPitch(0, 0);
 pins.analogSetPitchPin(AnalogPin.P0);
 ```
+
+### See Also
+
+[digitalReadPin](/reference/pins/digital-read-pin), [digitalWritePin](/reference/pins/digital-write-pin), [analogReadPin](/reference/pins/analog-read-pin), [analogWritePin](/reference/pins/analog-write-pin), [analogSetPeriod](/reference/pins/analog-set-period), [map](/reference/pins/map), [onPulsed](/reference/pins/on-pulsed), [pulseDuration](/reference/pins/pulse-duration), [servoWritePin](/reference/pins/servo-write-pin), [servoSetPulse](/reference/pins/servo-set-pulse), [i2cReadNumber](/reference/pins/i2c-read-number), [i2cWriteNumber](/reference/pins/i2c-write-number), [setPull](/reference/pins/set-pull), [analogPitch](/reference/pins/analog-pitch), [analogSetPitchPin](/reference/pins/analog-set-pitch), [spiWrite](/reference/pins/spi-write)

docs/reference/pins/analog-pitch.md

@@ -13,7 +13,7 @@ pins.analogPitch(440, 300)
 
 ### Example
 
-```
+```blocks
 pins.analogSetPitchPin("P0")
 let frequency1 = 440
 let duration = 1000

docs/reference/pins/analog-set-pitch-pin.md

@@ -12,7 +12,7 @@ pins.analogSetPitchPin(AnalogPin.P0)
 
 ### Example
 
-```
+```blocks
 pins.analogSetPitchPin(AnalogPin.P0)
 let frequency = 440
 let duration = 1000

docs/reference/pins/servo-write-pin.md

@@ -29,7 +29,7 @@ pins.servoWritePin(AnalogPin.P0, 90)
 
 ```blocks
 basic.forever(() => {
-    let millig = input.acceleration(Dimensions.X)
+    let millig = input.acceleration(Dimension.X)
     // map accelerometer readings to angle
     let angle = pins.map(millig, -1023, 1023, 0, 180)
     pins.servoWritePin(AnalogPin.P0, angle)

docs/reference/pins/spi-write.md

@@ -0,0 +1,19 @@
+# SPI Write
+
+Write to the SPI Slave and return the response.
+
+```sig
+pins.spiWrite(0);
+```
+
+### Parameters
+
+* ``value``: value	Data to be sent to the SPI slave
+
+### Returns
+
+* a [number](/reference/types/number) Response from the SPI slave
+
+### See also
+
+[SPI](https://developer.mbed.org/handbook/SPI)

docs/reference/radio.md

@@ -14,7 +14,15 @@ radio.receivedNumberAt(0);
 radio.receiveString();
 radio.receivedSignalStrength();
 radio.setGroup(0);
-radio.setTransmitPower(0);
+radio.setTransmitPower(7);
+radio.setTransmitSerialNumber(false);
 radio.writeValueToSerial();
-radio.setTransmitSerialNumber(true);
 ```
+
+```package
+microbit-radio
+```
+
+### See Also
+
+[sendNumber](/reference/radio/send-number), [sendValue](/reference/radio/send-value), [sendString](/reference/radio/send-string), [onDataReceived](/reference/radio/on-data-received), [receiveNumber](/reference/radio/receive-number), [receivedNumberAt](/reference/radio/received-number-at), [receiveString](/reference/radio/receive-string), [receivedSignalStrength](/reference/radio/received-signal-strength), [setGroup](/reference/radio/set-group), [setTransmitPower](/reference/radio/set-transmit-power), [setTransmitSerialNumber](/reference/radio/set-transmit-serial-number), [writeValueToSerial](/reference/radio/write-value-to-serial)

docs/reference/radio/on-data-received.md

@@ -33,3 +33,6 @@ radio.onDataReceived(() => {
 [receive number](/reference/radio/receive-number),
 [send number](/reference/radio/send-number), [set group](/reference/radio/set-group)
 
+```package
+microbit-radio
+```

docs/reference/radio/receive-number.md

@@ -64,3 +64,6 @@ basic.forever(() => {
 
 [send number](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
 
+```package
+microbit-radio
+```

docs/reference/radio/receive-string.md

@@ -89,3 +89,7 @@ radio.onDataReceived(() => {
 ### See also
 
 [send string](/reference/radio/send-string), [on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/radio/received-signal-strength.md

@@ -38,3 +38,7 @@ basic.forever(() => {
 ### See also
 
 [receive number](/reference/radio/receive-number), [send number](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/radio/send-number.md

@@ -43,3 +43,7 @@ basic.forever(() => {
 ### See also
 
 [receive number](/reference/radio/receive-number), [on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/radio/send-string.md

@@ -40,3 +40,7 @@ A radio that can both transmit and receive is called a _transceiver_.
 ### See also
 
 [receive string](/reference/radio/receive-string), [on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/radio/send-value.md

@@ -44,3 +44,6 @@ radio.onDataReceived(() => {
 
 [receive number](/reference/radio/receive-number), [on data received](/reference/radio/on-data-received)
 
+```package
+microbit-radio
+```

docs/reference/radio/set-group.md

@@ -34,3 +34,6 @@ radio.setGroup(128)
 
 [receive number](/reference/radio/receive-number), [send number](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
 
+```package
+microbit-radio
+```

docs/reference/radio/set-transmit-power.md

@@ -38,3 +38,7 @@ radio.setTransmitPower(7)
 ### See also
 
 [receive number](/reference/radio/receive-number), [send number](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/radio/set-transmit-serial-number.md

@@ -0,0 +1,31 @@
+# Set Transmit Serial Number
+
+Make the ``radio`` packet embed the board serial number with each packet of data.
+
+```sig
+radio.setTransmitSerialNumber(true);
+```
+
+### Parameters
+
+* ``transmit`` is a [boolean](/reference/types/boolean) that represents whether the serial number needs to be transmitted.
+
+### Simulator
+
+This function only works on the micro:bit, not in browsers.
+
+### Example
+
+This program makes the ``radio`` send the serial number in each packet.
+
+```blocks
+radio.setTransmitSerialNumber(true);
+```
+
+### See also
+
+[receive number](/reference/radio/receive-number), [send number](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/radio/write-value-to-serial.md

@@ -1,18 +1,26 @@
 # Write Value To Serial
 
-Writes the full data received data  via ``radio`` to serial in JSON format.   
-
-**Note** - This method only works for [send number](/reference/radio/send-number) and [send value](/reference/radio/send-value). It does not work for [send string](/reference/radio/send-string) (although a string can be sent with [send value](/reference/radio/send-value)).   
+Writes the data received by ``radio`` to serial in JSON format.
 
 ```sig
 radio.writeValueToSerial();
 ```
 
-## Data received format
-The format for received data printed to serial is as follows    
-- [send number](/reference/radio/send-number) - ```{v:ValueSent,t:MicrobitTimeAlive,s:Unused}```
-- [send value](/reference/radio/send-number) - ```{v:Value,t:MicrobitTimeAlive,s:Unused,n:"Name"}```
-- [send string](/reference/radio/send-string) - ```{}``` (currently unavailable)
+### ~hint
+
+This method only works for [send number](/reference/radio/send-number)
+and [send value](/reference/radio/send-value). It does not work for
+[send string](/reference/radio/send-string), although you can send a
+string as part of [send value](/reference/radio/send-value).
+
+### ~
+
+### Data received format
+
+The format for received data printed to serial is as follows:
+
+- [send number](/reference/radio/send-number): ```{v:ValueSent,t:MicrobitTimeAlive,s:Unused}```
+- [send value](/reference/radio/send-value): ```{v:ValueSent,t:MicrobitTimeAlive,s:Unused,n:"Name"}```
 
 ### Simulator
 
@@ -20,7 +28,9 @@ This function only works on the micro:bit, not in browsers.
 
 ### Examples
 
-When ```radio``` data is received (after pressing A button on 2nd micro:bit), output temperature data to serial.
+When ```radio``` data is received (after pressing the ``A`` button on
+the second micro:bit), this program sends temperature data to
+serial.
 
 ```blocks
 input.onButtonPressed(Button.A, () => {
@@ -30,9 +40,18 @@ radio.onDataReceived(() => {
     radio.writeValueToSerial();
 });
 ```
-Example output to serial when A button pressed:   
-```{v:27,t:323,s:0}```
+Sample output to serial when ``A`` button pressed:
+
+```Text
+{v:27,t:323,s:0}
+```
 
 ### See also
 
-[send number](/reference/radio/send-number), [send value](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
+[send number](/reference/radio/send-number),
+[send value](/reference/radio/send-value),
+[on data received](/reference/radio/on-data-received)
+
+```package
+microbit-radio
+```

docs/reference/serial.md

@@ -5,8 +5,12 @@ Reading and writing data over a serial connection.
 ```cards
 serial.writeLine("");
 serial.writeNumber(0);
-serial.writeValue(x, 0);
+serial.writeValue("x", 0);
 serial.writeString("");
 serial.readLine();
 serial.redirect(SerialPin.P0, SerialPin.P0, BaudRate.BaudRate115200);
 ```
+
+### See Also
+
+[writeLine](/reference/serial/write-line), [writeNumber](/reference/serial/write-number), [writeValue](/reference/serial/write-value), [writeString](/reference/serial/write-string), [readLine](/reference/serial/read-line), [redirect](/reference/serial/redirect-to)

docs/reference/toc.md

@@ -46,8 +46,6 @@ for
 
 forever
 
-game-library
-
 game-over
 
 if

docs/reference/types/boolean.md

@@ -0,0 +1,16 @@
+# Boolean
+
+true or false.
+
+A Boolean has one of two possible values: `true`; `false`.  Boolean (logical) operators (*and*, *or*, *not*) take Boolean inputs and yields a Boolean value. Comparison operators on other types ([numbers](/reference/types/number), [strings](/reference/types/string) yields a Boolean value.
+
+The following blocks represent the true and false Boolean values, which can be plugged in anywhere a Boolean value is expected:
+
+```blocks
+true;
+false;
+```
+
+### See Also
+
+[boolean (blocks)](/blocks/logic/boolean.md)

docs/reference/types/number.md

@@ -61,7 +61,7 @@ The [math library](/blocks/math) includes math related functions.
 For example, the `absolute` function returns the returns the absolute value of input parameter `x`:
 
 ```blocks
-let abs = math.absolute(-42);
+let abs = Math.abs(-42);
 basic.showNumber(abs);
 ```
 

docs/support.md

@@ -0,0 +1,3 @@
+# Support
+
+Please use the [GitHub issue tracker](https://github.com/microsoft/pxt-microbit) to report bugs.

docs/thank-you.md

@@ -1,9 +0,0 @@
-# You completed the survey!
-
-```sim
-basic.forever(() => { basic.showString("THANK YOU") })
-```
-
-Thank you for participating in this survey.
-
-Please [contact us](mailto:microbitpilots@microsoft.com) with any information you think we might find useful.

docs/windows10.md

@@ -1,12 +0,0 @@
-# Windows 10 App
-
-## Features
-
-The Windows 10 App provides all the existing features of [codethemicrobit](https://codethemicrobit.com) plus the following ones:
-
-* **auto-upload**: the compiled .hex file is automatically deployed to all connected BBC micro:bits
-* **serial piping**: all serial data sent by connected BBC micro:bit is automatically imported and analyzed in the editor.
-
-## Installing the app
-
-Coming to the store soon!

libs/i2c-fram/README.md

@@ -1,30 +0,0 @@
-# I2C FRAM driver
-
-This library provides a driver for this FRAM part: https://www.adafruit.com/products/1895
-
-The memory is accessed one byte at a time. The library provides a utility functions
-to write an entire buffer.
-
-## Reading/writing byte
-
-```
-let addr = 100
-i2c_fram.writeByte(addr, 42)
-let val = i2c_fram.readByte(addr)
-console.log(`${addr}: ${val}`)
-```
-
-## Reading/writing a buffer
-
-This code will log current time and acceleration in X axis every second.
-
-```
-let bufSz = 8
-for (let addr = 0; addr < 0x8000; addr += bufSz) {
-    let buf = pins.createBuffer(bufSz)
-    buf.setNumber(NumberFormat.Int32LE, 0, input.runningTime())
-    buf.setNumber(NumberFormat.Int32LE, 4, input.acceleration(Dimension.X))
-    i2c_fram.writeBuffer(addr, buf)
-    basic.pause(1000)
-}
-```

libs/i2c-fram/fram.ts

@@ -1,55 +0,0 @@
-namespace i2c_fram {
-    const devaddr = 0x50;
-    const memend = 0x7fff;
-
-    //% shim=pxtrt::panic
-    function panic(code: number) { }
-
-    function die() { panic(142) }
-
-    export function readByte(addr: number) {
-        if (addr < 0 || addr > memend)
-            die();
-
-        let buf = pins.createBuffer(2)
-        buf[0] = (addr >> 8) & 0xff;
-        buf[1] = addr & 0xff;
-
-        pins.i2cWriteBuffer(devaddr, buf);
-        buf = pins.i2cReadBuffer(devaddr, 1);
-
-        return buf[0];
-    }
-
-    export function writeByte(addr: number, val: number) {
-        if (addr < 0 || addr > memend)
-            die();
-
-        if (val < 0 || val > 0xff)
-            die();
-
-        let buf = pins.createBuffer(3)
-
-        buf[0] = (addr >> 8) & 0xff;
-        buf[1] = addr & 0xff;
-        buf[2] = val;
-
-        pins.i2cWriteBuffer(devaddr, buf)
-    }
-
-    export function readBuffer(addr: number, length: number) {
-        if (addr < 0 || length < 0 || (addr + length) > memend)
-            die();
-        let buf = pins.createBuffer(length)
-        for (let i = 0; i < length; ++i)
-            buf[i] = readByte(addr + i)
-        return buf
-    }
-
-    export function writeBuffer(addr: number, buf: Buffer) {
-        if (addr < 0 || (addr + buf.length) > memend)
-            die();
-        for (let i = 0; i < buf.length; ++i)
-            writeByte(addr + i, buf[i])
-    }
-}