Add file listing and delete apis

* removed logging

* removing more logging

* always use step for single/multiple motors

* refactored schedule

* account for accel ramp up and down

* added default acc/decel

* rounding speed/angle

* remove hack

* use acceleration time in run too

* handle missing case

* adding notes on motors

* adding sample

* fixed ramp simulation

* clear defaults

* some docs, more later

* adding basic examples

* remove debug msg

* clean json

* added move schedule

* docs

* basic docs

.travis.yml

@@ -0,0 +1,9 @@
+language: node_js
+node_js:
+  - "8.9.0"
+script:
+  - "node node_modules/pxt-core/built/pxt.js travis"
+sudo: false
+cache:
+  directories:
+    - node_modules

README.md

@@ -1,10 +1,8 @@
-# LEGO® MINDSTORMS® Education EV3 for Microsoft MakeCode
-
-[![Build Status](https://ci2.dot.net/buildStatus/icon?job=Private/pxt_project_rainbow/master/pxt-ev3_Push)](https://ci2.dot.net/job/Private/job/pxt_project_rainbow/job/master/job/pxt-ev3_Push/)
+# LEGO® MINDSTORMS® Education EV3 for Microsoft MakeCode [![Build Status](https://travis-ci.org/microsoft/pxt-ev3.svg?branch=master)](https://travis-ci.org/microsoft/pxt-ev3)
 
 This repo contains the editor target hosted at https://makecode.mindstorms.com
 
-## Local Dev setup
+## Local setup
 
 These instructions assume familiarity with dev tools and languages.
 
@@ -12,10 +10,6 @@ These instructions assume familiarity with dev tools and languages.
 * install Docker; make sure `docker` command is in your `PATH`
 * (optional) install [Visual Studio Code](https://code.visualstudio.com/)
 
-In a common folder,
-
-* clone https://github.com/Microsoft/pxt to ``pxt`` folder
-* clone https://github.com/Microsoft/pxt-common-packages to ``pxt-common-packages`` folder
 * clone https://github.com/Microsoft/pxt-ev3 to ``pxt-ev3`` folder
 * go to ``pxt`` and run
 
@@ -23,6 +17,18 @@ In a common folder,
 npm install
 ```
 
+* to run the local server,
+```
+pxt serve --cloud
+```
+
+## Local Dev setup
+
+In the common folder,
+
+* clone https://github.com/Microsoft/pxt to ``pxt`` folder
+* clone https://github.com/Microsoft/pxt-common-packages to ``pxt-common-packages`` folder
+
 * go to ``pxt-common-packages`` and run
 
 ```
@@ -54,9 +60,6 @@ cd libs/core
 pxt deploy
 ```
 
-### Jenkins build
-https://ci2.dot.net/job/Private/job/pxt_project_rainbow/job/master/
-
 ## License
 MIT
 

docs/SUMMARY.md

@@ -19,11 +19,14 @@
     * [What Animal Am I?](/tutorials/what-animal-am-i)
     * [Music Brick](/tutorials/music-brick)
     * [Run Motors](/tutorials/run-motors)
+    * [Tank ZigZag](/tutorials/tank-zigzag)
     * [Touch to Run](/tutorials/touch-to-run)
     * [Touch Sensor Values](/tutorials/touch-sensor-values)
     * [What Color?](/tutorials/what-color)
     * [Line Following](/tutorials/line-following)
     * [Red Light, Green Light](/tutorials/redlight-greenlight)
+    * [Reflected Light Measure](/tutorials/reflected-light-measure)
+    * [Reflected Light Calibration](/tutorials/reflected-light-calibration)
     * [Object Near?](/tutorials/object-near)
     * [Security Alert](/tutorials/security-alert)
 

docs/extensions.md

@@ -0,0 +1,18 @@
+# Extensions
+
+## #gallery
+
+## Using Extensions
+
+In the web editor, click on ``Settings`` then ``Extensions`` to search and add extensions to the project.
+The Blocks and JavaScript definitions will be automatically loaded in the editor.
+
+## Custom extensions
+
+The [Build Your Own Extension](https://makecode.com/extensions/getting-started) manual is for advanced users who want to publish their own extension. 
+
+## ~ hint
+
+**Extensions** were previously called **Packages** in MakeCode.
+
+## ~

docs/fll.md

@@ -2,10 +2,16 @@
 
 ![FIRST LEGO League logo](/static/fll/fll-logo.png)
 
-For teams participating in the Open Software Platform Pilot utilizing MakeCode, we’ve compiled a list of resources and information that we hope will be helpful for you.
+**For teams participating in the Open Software Platform Pilot utilizing MakeCode**, we’ve compiled a list of resources and information that we hope will be helpful for you.
+
+* **Got a question? Post it on the forums** at https://forum.makecode.com/
 
 ## FAQ
 
+### I found a bug what do I do?
+
+If you found a bug, please try if it hasn't been fixed yet! Go to https://makecode.mindstorms.com/beta and try if the bug is corrected. Otherwise, please tell us at https://forum.makecode.com/.
+
 ### How do I use MakeCode with my EV3?
 
 * You will need to install the latest EV3 firmware on your brick. Instructions on how to do that are located here: https://makecode.mindstorms.com/troubleshoot.
@@ -104,9 +110,3 @@ For other common questions, try the FAQ page https://makecode.mindstorms.com/faq
 
 >* Description: Unable to delete program files from the EV3 brick after downloading them
 >* Status: LEGO Education team is working on a fix, no estimated date yet
-
-## Community connection
-
-For questions, issues, feedback and community for the Open Software Platform Pilot:
-
-We are using a messaging service called **Slack**. Slack can be accessed via an app you download to your computer or mobile device, and via a web interface. For more information about Slack, click [here](https://slack.com/). Anyone in the pilot can participate by signing up with Slack first, and then clicking this [FIRST LEGO League Robot SW](https://fllrobotsw.slack.com/join/shared_invite/enQtNDgxOTQ5MDc2OTkyLTg2ZTRkYzQ4OGMyZTg1OTZmMDFhMWNlOTQ1OWRlNDdmNzNmMjlhMmZiM2M3OWUxYjU1ODEwY2FmODJkNjZkOTA) link to join the Slack workspace.

docs/getting-started.md

@@ -25,6 +25,12 @@
     "description": "Build a robot and drive into the world of robotics!",
     "url": "/getting-started/use",
     "cardType": "side"
+},
+{
+    "name": "First LEGO League",
+    "imageUrl": "/static/fll/fll-big.png",
+    "description": "Information about using MakeCode in FLL competitions",
+    "url": "/fll"
 }
 ]
 ```

docs/packages-ref.json

@@ -0,0 +1,3 @@
+{
+    "redirect": "/extensions"
+}

docs/packages/approval-ref.json

@@ -0,0 +1,3 @@
+{
+    "redirect": "https://makecode.com/extensions/approval"
+}

docs/packages/build-your-own-ref.json

@@ -0,0 +1,3 @@
+{
+    "redirect": "https://makecode.com/extensions/getting-started"
+}

docs/packages/versioning-ref.json

@@ -0,0 +1,3 @@
+{
+    "redirect": "https://makecode.com/extensions/versioning"
+}

docs/reference/motors/motor/run.md

@@ -6,9 +6,9 @@ Set the rotation speed of the motor as a percentage of maximum speed.
 motors.largeA.run(50)
 ```
 
-The speed setting is a pecentage of the motor's full speed. Full speed is the speed that the motor runs when the brick supplies maximum output voltage to the port.
+The speed setting is a percentage of the motor's full speed. Full speed is the speed that the motor runs when the brick supplies maximum output voltage to the port.
 
-If you use just the **speed** number, the motor runs continously and won't stop unless you tell it to. You can also give a value for a certain amount of distance you want the motor to rotate for. The **value** can be an amount of time, a turn angle in degrees, or a number of full rotations.
+If you use just the **speed** number, the motor runs continuously and won't stop unless you tell it to. You can also give a value for a certain amount of distance you want the motor to rotate for. The **value** can be an amount of time, a turn angle in degrees, or a number of full rotations.
 
 If you decide to use a **value** of rotation distance, you need to choose a type of movement **unit**.
 
@@ -30,8 +30,8 @@ Here is how you use each different movement unit to run the motor for a fixed ro
 // Run motor for 700 Milliseconds. 
 motors.largeA.run(25, 700, MoveUnit.MilliSeconds);
 
-// Run motor for 700 Milliseconds again but no units specified. 
-motors.largeA.run(25, 700);
+// Run motors B and C for 700 Milliseconds again but no units specified. 
+motors.largeBC.run(25, 700);
 
 // Run the motor for 45 seconds
 motors.largeA.run(50, 45, MoveUnit.Seconds);
@@ -61,6 +61,14 @@ motors.largeB.run(-25)
 
 ## ~
 
+## Multiple motors
+
+When using **run** with multiple motors, there is no guarantee that their speed will stay in sync. Use [tank](/reference/motors/tank) or [steer](/reference/motors/steer) for synchronized motor operations.
+
+```blocks
+motors.largeBC.run(50)
+```
+
 ## Examples
 
 ### Drive the motor for 20 seconds

docs/reference/motors/motor/schedule.md

@@ -0,0 +1,22 @@
+# Schedule
+
+Schedules an acceleration, constant and deceleration phase at a given speed.
+
+```sig
+motors.largeA.schedule(50, 100, 500, 100)
+```
+
+The speed setting is a percentage of the motor's full speed. Full speed is the speed that the motor runs when the brick supplies maximum output voltage to the port.
+
+
+## Parameters
+
+* **speed**: a [number](/types/number) that is the percentage of full speed. A negative value runs the motor in the reverse direction.
+* **acceleration**: the [number](/types/number) of movement units to rotate for while accelerating.
+* **value**: the [number](/types/number) of movement units to rotate for.
+* **deceleration**: the [number](/types/number) of movement units to rotate for while decelerating.
+* **unit**: the movement unit of rotation. This can be `milliseconds`, `seconds`, `degrees`, or `rotations`. If the number for **value** is `0`, this parameter isn't used.
+
+## See also
+
+[tank](/reference/motors/synced/tank), [steer](/reference/motors/synced/steer), [stop](/reference/motors/motor/stop)

docs/reference/motors/motor/set-run-acceleration-ramp.md

@@ -0,0 +1,20 @@
+# Set Run Acceleration Ramp
+
+```sig
+motors.largeD.setRunAccelerationRamp(1, MoveUnit.Seconds)
+```
+
+## Examples
+
+```blocks
+brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
+    motors.largeB.run(50, 6, MoveUnit.Rotations)
+})
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    motors.largeC.run(50, 6, MoveUnit.Seconds)
+})
+motors.largeB.setRunAccelerationRamp(360, MoveUnit.Degrees)
+motors.largeB.setRunDecelerationRamp(360, MoveUnit.Degrees)
+motors.largeC.setRunAccelerationRamp(2, MoveUnit.Seconds)
+motors.largeC.setRunDecelerationRamp(2, MoveUnit.Seconds)
+```

docs/reference/motors/motor/set-run-deceleration-ramp.md

@@ -0,0 +1,20 @@
+# Set Run Deceleration Ramp
+
+```sig
+motors.largeD.setRunDecelerationRamp(1, MoveUnit.Seconds)
+```
+
+## Examples
+
+```blocks
+brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
+    motors.largeB.run(50, 6, MoveUnit.Rotations)
+})
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    motors.largeC.run(50, 6, MoveUnit.Seconds)
+})
+motors.largeB.setRunAccelerationRamp(360, MoveUnit.Degrees)
+motors.largeB.setRunDecelerationRamp(360, MoveUnit.Degrees)
+motors.largeC.setRunAccelerationRamp(2, MoveUnit.Seconds)
+motors.largeC.setRunDecelerationRamp(2, MoveUnit.Seconds)
+```

docs/reference/motors/synced/steer.md

@@ -39,6 +39,13 @@ motors.largeBC.steer(-15, -75)
 
 ## ~
 
+## ~ hint
+
+Only one set of synchronized motors will run at the same time. Once you launch tank/steer, it will cancel any existing synchronized speed command.
+
+## ~
+
+
 ## Examples
 
 ### Make a slight right
@@ -79,6 +86,51 @@ for (let i = 0; i < 4; i++) {
 motors.stopAll()
 ```
 
+### Steer tester
+
+This program lets you change the values of speed and turn ratio with the buttons.
+
+```typescript
+let speed = 0;
+let turnRatio = 0;
+
+brick.showString(`steer tester`, 1)
+brick.showString(`connect motors BC`, 7)
+brick.showString(`up/down for speed`, 8)
+brick.showString(`left/right for turn ratio`, 9)
+
+forever(function () {
+    brick.showString(`motor B speed ${motors.largeB.speed()}%`, 4)
+    brick.showString(`motor C speed ${motors.largeC.speed()}%`, 5)
+    pause(100)
+})
+
+function updateSteer() {
+    motors.largeBC.steer(turnRatio, speed);
+    brick.showString(`speed ${speed}%`, 2)
+    brick.showString(`turnRatio ${turnRatio}`, 3)
+}
+
+brick.buttonUp.onEvent(ButtonEvent.Pressed, function () {
+    speed += 10
+    updateSteer()
+})
+brick.buttonDown.onEvent(ButtonEvent.Pressed, function () {
+    speed -= 10
+    updateSteer()
+})
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    turnRatio -= 10
+    updateSteer()
+})
+brick.buttonRight.onEvent(ButtonEvent.Pressed, function () {
+    turnRatio += 10
+    updateSteer()
+})
+
+updateSteer()
+```
+
 ## See also
 
 [tank](/reference/motors/synced/tank), [run](/reference/motors/motor/run)

docs/reference/motors/synced/tank.md

@@ -35,6 +35,12 @@ motors.largeBC.tank(-75, -75)
 
 ## ~
 
+## ~ hint
+
+Only one set of synchronized motors will run at the same time. Once you launch tank/steer, it will cancel any existing synchronized speed command.
+
+## ~
+
 ## Examples
 
 ### Tank forward and backward
@@ -76,6 +82,51 @@ pause(5000)
 motors.stopAll()
 ```
 
+### Tank tester
+
+This program lets you change the tank values using the brick buttons.
+
+```typescript
+let tankB = 0;
+let tankC = 0;
+
+brick.showString(`tank tester`, 1)
+brick.showString(`connect motors BC`, 7)
+brick.showString(`up/down for tank B`, 8)
+brick.showString(`left/right for tank C`, 9)
+
+forever(function () {
+    brick.showString(`motor B speed ${motors.largeB.speed()}%`, 4)
+    brick.showString(`motor C speed ${motors.largeC.speed()}%`, 5)
+    pause(100)
+})
+
+function updateTank() {
+    brick.showString(`tank A: ${tankB}%`, 2)
+    brick.showString(`tank B: ${tankC}%`, 3)
+    motors.largeBC.tank(tankB, tankC);
+}
+
+brick.buttonUp.onEvent(ButtonEvent.Pressed, function () {
+    tankB += 10
+    updateTank();
+})
+brick.buttonDown.onEvent(ButtonEvent.Pressed, function () {
+    tankB -= 10
+    updateTank();
+})
+brick.buttonRight.onEvent(ButtonEvent.Pressed, function () {
+    tankC += 10
+    updateTank();
+})
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    tankC -= 10
+    updateTank();
+})
+
+updateTank();
+```
+
 ## See also
 
 [steer](/reference/motors/synced/steer), [run](/reference/motors/motor/run)

docs/tutorials.md

@@ -2,113 +2,41 @@
 
 Step by step guides to coding your @boardname@.
 
-## Brick
+## Tutorials
 
 ```codecard
 [{
-  "name": "Wake Up!",
-  "description": "Show different moods on the screen. Is it tired, sleepy, or awake?",
-  "cardType": "tutorial",
-  "url":"/tutorials/wake-up",
+  "name": "Brick",
+  "description": "Learn how to use the screen and the buttons",
+  "url":"/tutorials/brick",
   "imageUrl":"/static/tutorials/wake-up.png"
 }, {
-  "name": "Make an Animation",
-  "description": "Create a custom animation on your EV3 Brick Display.",
-  "cardType": "tutorial",
-  "url":"/tutorials/make-an-animation",
-  "imageUrl":"/static/tutorials/make-an-animation.png"
-}, {
-  "name": "What Animal Am I?",
-  "description": "Create different animal effects and have someone guess what the animal is.",
-  "cardType": "tutorial",
-  "url":"/tutorials/what-animal-am-i",
-  "imageUrl":"/static/tutorials/what-animal-am-i.png"
-}, {
-  "name": "Music Brick",
-  "description": "Transform the brick into a musical instrument!",
-  "cardType": "tutorial",
-  "url":"/tutorials/music-brick",
-  "imageUrl":"/static/tutorials/music-brick.png"
-}]
-```
-
-## Motors
-
-```codecard
-[{
-  "name": "Run Motors",
-  "description": "Use the EV3 Brick buttons to start and stop the Large Motor and Medium Motor.",
-  "cardType": "tutorial",
-  "url":"/tutorials/run-motors",
+  "name": "Motors",
+  "description": "User motors to move the brick.",
+  "url":"/tutorials/motors",
   "imageUrl":"/static/tutorials/run-motors.png"
-}]
-```
-
-## Touch Sensor
-
-```codecard
-[{
-  "name": "Touch to Run",
-  "description": "Press the Touch Sensor and run a motor.",
-  "cardType": "tutorial",
-  "url":"/tutorials/touch-to-run",
+}, {
+  "name": "Touch Sensor",
+  "description": "Use touch sensors in your robot.",
+  "url":"/tutorials/touch-sensor",
   "imageUrl":"/static/tutorials/touch-to-run.png"
 }, {
-  "name": "Touch Sensor Values",
-  "description": "Check the value of a Touch Sensor and stop a motor if pressed.",
-  "cardType": "tutorial",
-  "url":"/tutorials/touch-sensor-values",
-  "imageUrl":"/static/tutorials/touch-sensor-values.png"
-}]
-```
-
-## Color Sensor
-
-```codecard
-[{
-  "name": "What Color?",
-  "description": "Use the Color Sensor to detect different colors.",
-  "cardType": "tutorial",
-  "url":"/tutorials/what-color",
+  "name": "Color Sensor",
+  "description": "Use the color sensor to follow line or detect colors",
+  "url":"/tutorials/color-sensor",
   "imageUrl":"/static/tutorials/what-color.png"
 }, {
-  "name": "Line Following",
-  "description": "Use the Color Sensor to make a robot follow a line.",
-  "cardType": "tutorial",
-  "url":"/tutorials/line-following",
-  "imageUrl":"/static/tutorials/line-following.png"
-}, {
-  "name": "Red Light, Green Light",
-  "description": "Play Red Light, Green Light using the Color Sensor and the robot.",
-  "cardType": "tutorial",
-  "url":"/tutorials/redlight-greenlight",
-  "imageUrl":"/static/tutorials/redlight-greenlight.png"
-}]
-```
-
-## Infrared Sensor
-
-```codecard
-[{
-  "name": "Security Alert",
-  "description": "Build an security alert using the Infrared Sensor.",
-  "cardType": "tutorial",
-  "url":"/tutorials/security-alert",
+  "name": "Infrared Sensor",
+  "description": "Use the infrared sensor to detect objects",
+  "url":"/tutorials/infrared-sensor",
   "imageUrl":"/static/tutorials/security-alert.png"
 }]
 ```
 
 ## See Also
 
-[Wake Up!](/tutorials/wake-up),
-[Make An Animation](/tutorials/make-an-animation),
-[What Animal Am I?](/tutorials/what-animal-am-i),
-[Music Brick](/tutorials/music-brick),
-[Run Motors](/tutorials/run-motors),
-[Touch to Run](/tutorials/touch-to-run),
-[Touch Sensor Values](/tutorials/touch-sensor-values),
-[What Color?](/tutorials/what-color),
-[Line Following](/tutorials/line-following),
-[Red Light, Green Light](/tutorials/redlight-greenlight),
-[Object Near?](/tutorials/object-near),
-[Security Alert](/tutorials/security-alert)
+[Brick tutorials](/tutorials/brick),
+[Motors tutorials](/tutorials/motors),
+[Touch sensor tutorials](/tutorials/touch-sensor),
+[Color sensor tutorials](/tutorials/color-sensor),
+[Infrared sensor tutorials](/tutorials/infrared-sensor)

docs/tutorials/brick.md

@@ -0,0 +1,38 @@
+# Brick Tutorials
+
+## Tutorials
+
+```codecard
+[{
+  "name": "Wake Up!",
+  "description": "Show different moods on the screen. Is it tired, sleepy, or awake?",
+  "cardType": "tutorial",
+  "url":"/tutorials/wake-up",
+  "imageUrl":"/static/tutorials/wake-up.png"
+}, {
+  "name": "Make an Animation",
+  "description": "Create a custom animation on your EV3 Brick Display.",
+  "cardType": "tutorial",
+  "url":"/tutorials/make-an-animation",
+  "imageUrl":"/static/tutorials/make-an-animation.png"
+}, {
+  "name": "What Animal Am I?",
+  "description": "Create different animal effects and have someone guess what the animal is.",
+  "cardType": "tutorial",
+  "url":"/tutorials/what-animal-am-i",
+  "imageUrl":"/static/tutorials/what-animal-am-i.png"
+}, {
+  "name": "Music Brick",
+  "description": "Transform the brick into a musical instrument!",
+  "cardType": "tutorial",
+  "url":"/tutorials/music-brick",
+  "imageUrl":"/static/tutorials/music-brick.png"
+}]
+```
+
+## See Also
+
+[Wake Up!](/tutorials/wake-up),
+[Make An Animation](/tutorials/make-an-animation),
+[What Animal Am I?](/tutorials/what-animal-am-i),
+[Music Brick](/tutorials/music-brick),

docs/tutorials/coast-or-brake.md

@@ -0,0 +1,16 @@
+# Coast or Brake
+
+This code example will set the brake when button **A** is pressed or let the motor coast (turn freely when not running) when button **B** is pressed. The motor is turned by one rotation to cause motion.
+
+```blocks
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    // tell motor to brake once the run command is done
+    motors.largeB.setBrake(true)
+    motors.largeB.run(100, 1, MoveUnit.Rotations)
+})
+brick.buttonRight.onEvent(ButtonEvent.Pressed, function () {
+    // tell motor to coast once the run command is done
+    motors.largeB.setBrake(false)
+    motors.largeB.run(100, 1, MoveUnit.Rotations)
+})
+```

docs/tutorials/color-sensor.md

@@ -0,0 +1,43 @@
+# Color Sensor
+
+## Tutorials
+
+```codecard
+[{
+  "name": "What Color?",
+  "description": "Use the Color Sensor to detect different colors.",
+  "cardType": "tutorial",
+  "url":"/tutorials/what-color",
+  "imageUrl":"/static/tutorials/what-color.png"
+}, {
+  "name": "Line Following",
+  "description": "Use the Color Sensor to make a robot follow a line.",
+  "cardType": "tutorial",
+  "url":"/tutorials/line-following",
+  "imageUrl":"/static/tutorials/line-following.png"
+}, {
+  "name": "Red Light, Green Light",
+  "description": "Play Red Light, Green Light using the Color Sensor and the robot.",
+  "cardType": "tutorial",
+  "url":"/tutorials/redlight-greenlight",
+  "imageUrl":"/static/tutorials/redlight-greenlight.png"
+}, {
+  "name": "Reflected Light Measure",
+  "description": "Teach the sensor what light or dark is.",
+  "cardType": "example",
+  "url":"/tutorials/reflected-light-measure",
+  "imageUrl":"/static/tutorials/reflected-light-measure.png"
+}, {
+  "name": "Reflected Light Calibration",
+  "description": "Use the auto-calibration feature to setup the dark and bright values.",
+  "cardType": "example",
+  "url":"/tutorials/reflected-light-calibration",
+  "imageUrl":"/static/tutorials/reflected-light-calibration.png"
+}]
+```
+
+## See Also
+
+[What Color?](/tutorials/what-color),
+[Line Following](/tutorials/line-following),
+[Red Light, Green Light](/tutorials/redlight-greenlight),

docs/tutorials/infrared-sensor.md

@@ -0,0 +1,24 @@
+# Infrared sensor
+
+## Tutorials
+
+```codecard
+[{
+  "name": "Object Near",
+  "description": "Detect if objects are near.",
+  "cardType": "tutorial",
+  "url":"/tutorials/object-near",
+  "imageUrl":"/static/tutorials/object-near.png"
+}, {
+  "name": "Security Alert",
+  "description": "Build an security alert using the Infrared Sensor.",
+  "cardType": "tutorial",
+  "url":"/tutorials/security-alert",
+  "imageUrl":"/static/tutorials/security-alert.png"
+}]
+```
+
+## See Also
+
+[Object Near?](/tutorials/object-near),
+[Security Alert](/tutorials/security-alert)

docs/tutorials/motors.md

@@ -0,0 +1,52 @@
+# Motors
+
+## Tutorials
+
+```codecard
+[{
+  "name": "Run Motors",
+  "description": "Use the EV3 Brick buttons to start and stop the Large Motor and Medium Motor.",
+  "cardType": "tutorial",
+  "url":"/tutorials/run-motors",
+  "imageUrl":"/static/tutorials/run-motors.png"
+}, {
+  "name": "Spin Turn",
+  "description": "Turn the driving base around its center.",
+  "cardType": "example",
+  "url":"/tutorials/spin-turn",
+  "imageUrl":"/static/tutorials/spin-turn.png"
+}, {
+  "name": "Pivot Turn",
+  "description": "Turn the driving base around a wheel.",
+  "cardType": "example",
+  "url":"/tutorials/pivot-turn",
+  "imageUrl":"/static/tutorials/pivot-turn.png"
+}, {
+  "name": "Smooth Turn",
+  "description": "Turn the driving base in a smooth, steering motion.",
+  "cardType": "example",
+  "url":"/tutorials/smooth-turn",
+  "imageUrl":"/static/tutorials/smooth-turn.png"
+}, {
+  "name": "Tank ZigZag",
+  "description": "Use the tank block to keep motors in sync.",
+  "cardType": "example",
+  "url":"/tutorials/tank-zigzag",
+  "imageUrl":"/static/tutorials/tank-zigzag.png"
+}, {
+  "name": "Coast Or Brake",
+  "description": "Tell motors to coast or brake once the run command is done.",
+  "cardType": "example",
+  "url":"/tutorials/coast-or-brake",
+  "imageUrl":"/static/tutorials/coast-or-brake.png"
+}]
+```
+
+## See Also
+
+[Run Motors](/tutorials/run-motors),
+[Spin Turn](/tutorials/spin-turn),
+[Pivot Turn](/tutorials/pivot-turn),
+[Smooth Turn](/tutorials/smooth-turn),
+[Tank ZigZag](/tutorials/tank-zigzag),
+[Coast Or Brake](/tutorials/coast-or-brake)

docs/tutorials/pause-until-pressed.md

@@ -0,0 +1,9 @@
+# Pause Until Pressed
+
+This is a code example to detect contact or collision with another object. It uses a touch sensor to detect hitting a wall or other obstacle. The motors are run and then stopped when the sensor is pressed.
+
+```blocks
+motors.largeBC.tank(50, 50)
+sensors.touch1.pauseUntil(ButtonEvent.Pressed)
+motors.largeBC.stop()
+```

docs/tutorials/pivot-turn.md

@@ -0,0 +1,12 @@
+# Pivot Turn
+
+A **pivot turn** happens when a [EV3 Driving Base](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/building-instructions/ev3-rem-driving-base-79bebfc16bd491186ea9c9069842155e.pdf) turns around the wheel on the inside of the turn by spinning just the single wheel at the outside of the turn.
+
+You can make a turn happen with either a ``||motors:tank||`` or a ``||motors:steer||`` block.
+
+```blocks
+forever(function() {
+    motors.largeBC.tank(50, 0, 2, MoveUnit.Rotations)
+    motors.largeBC.tank(0, 50, 2, MoveUnit.Rotations)
+})
+```

docs/tutorials/reflected-light-calibration.md

@@ -0,0 +1,24 @@
+# Reflected light calibration
+
+The ``||sensors:calibrateLight||`` blocks allows you to calibrate the reflected light of the color sensor in one block. At the time you run the block, move the sensor over a dark surface and a bright surface; then stop moving it.
+
+```blocks
+sensors.color3.onLightDetected(LightIntensityMode.Reflected, Light.Dark, function () {
+    brick.showString("dark", 2)
+})
+sensors.color3.onLightDetected(LightIntensityMode.Reflected, Light.Bright, function () {
+    brick.showString("bright", 2)
+})
+console.sendToScreen()
+console.log("move color sensor")
+console.log("over DARK and BRIGHT color")
+console.log("and stop moving when done")
+console.log("press ENTER when ready")
+brick.buttonEnter.pauseUntil(ButtonEvent.Pressed)
+sensors.color3.calibrateLight(LightIntensityMode.Reflected)
+brick.showValue("dark", sensors.color3.threshold(Light.Dark), 4)
+brick.showValue("bright", sensors.color3.threshold(Light.Bright), 5)
+forever(function () {
+    brick.showValue("reflected light", sensors.color3.light(LightIntensityMode.Reflected), 1)
+})
+```

docs/tutorials/reflected-light-measure.md

@@ -0,0 +1,29 @@
+# Reflected light measure
+
+This example uses a color sensor to measure the reflected light from a dark and light surface
+and sets the light/dark thresholds.
+
+```blocks
+sensors.color3.onLightDetected(LightIntensityMode.Reflected, Light.Dark, function () {
+    brick.showString("dark", 2)
+})
+sensors.color3.onLightDetected(LightIntensityMode.Reflected, Light.Bright, function () {
+    brick.showString("bright", 2)
+})
+console.sendToScreen()
+console.log("move color sensor")
+console.log("over DARK color")
+console.log("press ENTER when ready")
+brick.buttonEnter.pauseUntil(ButtonEvent.Pressed)
+sensors.color3.setThreshold(Light.Dark, sensors.color3.light(LightIntensityMode.Reflected) + 5)
+console.logValue("dark", sensors.color3.threshold(Light.Dark))
+console.log("move color sensor")
+console.log("over BRIGHT color")
+console.log("press ENTER when ready")
+brick.buttonEnter.pauseUntil(ButtonEvent.Pressed)
+sensors.color3.setThreshold(Light.Bright, sensors.color3.light(LightIntensityMode.Reflected) - 5)
+console.logValue("bright", sensors.color3.threshold(Light.Bright))
+forever(function () {
+    brick.showValue("reflected light", sensors.color3.light(LightIntensityMode.Reflected), 1)
+})
+```

docs/tutorials/smooth-turn.md

@@ -0,0 +1,12 @@
+# Smooth Turn
+
+A **smooth turn** happens when a [EV3 Driving Base](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/building-instructions/ev3-rem-driving-base-79bebfc16bd491186ea9c9069842155e.pdf) makes a turn by spinning both both wheels but with each running at a different speed.
+
+You can make a turn happen with either a ``||motors:tank||`` or a ``||motors:steer||`` block.
+
+```blocks
+forever(function() {
+    motors.largeBC.tank(50, 20, 2, MoveUnit.Rotations)
+    motors.largeBC.tank(20, 50, 2, MoveUnit.Rotations)
+})
+```

docs/tutorials/spin-turn.md

@@ -0,0 +1,12 @@
+# Spin Turn
+
+A **spin turn** happens when a [EV3 Driving Base](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/building-instructions/ev3-rem-driving-base-79bebfc16bd491186ea9c9069842155e.pdf) turns, or rotates, on a single spot by spinning both wheels, but with each turning in opposite directions.
+
+You can make a turn happen with either a ``||motors:tank||`` or a ``||motors:steer||`` block.
+
+```blocks
+forever(function() {
+    motors.largeBC.tank(50, -50, 2, MoveUnit.Rotations)
+    motors.largeBC.tank(-50, 50, 2, MoveUnit.Rotations)
+})
+```

docs/tutorials/tank-zigzag.md

@@ -0,0 +1,17 @@
+# Tank ZigZag
+
+This example shows how to use the [tank](/reference/motors/tank) block to keep the speed of 2 large motors synchronized. The [EV3 Driving Base](https://le-www-live-s.legocdn.com/sc/media/lessons/mindstorms-ev3/building-instructions/ev3-rem-driving-base-79bebfc16bd491186ea9c9069842155e.pdf)
+) will move in a zig zag pattern.
+
+```blocks
+/**
+ * Use the tank block to keep large motors synched. 
+ Use this code with a EV3 driving base.
+ */
+forever(function () {
+    brick.showImage(images.eyesMiddleRight)
+    motors.largeBC.tank(50, 10, 2, MoveUnit.Rotations)
+    brick.showImage(images.eyesMiddleLeft)
+    motors.largeBC.tank(10, 50, 2, MoveUnit.Rotations)
+})
+```

docs/tutorials/touch-sensor.md

@@ -0,0 +1,31 @@
+# Touch Sensor
+
+## Tutorials
+
+```codecard
+[{
+  "name": "Touch to Run",
+  "description": "Press the Touch Sensor and run a motor.",
+  "cardType": "tutorial",
+  "url":"/tutorials/touch-to-run",
+  "imageUrl":"/static/tutorials/touch-to-run.png"
+}, {
+  "name": "Sensor Values",
+  "description": "Check the value of a Touch Sensor and stop a motor if pressed.",
+  "cardType": "tutorial",
+  "url":"/tutorials/touch-sensor-values",
+  "imageUrl":"/static/tutorials/touch-sensor-values.png"
+}, {
+  "name": "Pause Until Pressed",
+  "description": "Waits for the sensor to be pressed before continuing the program",
+  "cardType": "tutorial",
+  "url":"/tutorials/pause-until-pressed",
+  "imageUrl":"/static/tutorials/pause-until-pressed.png"
+}]
+```
+
+## See Also
+
+[Touch to Run](/tutorials/touch-to-run),
+[Touch Sensor Values](/tutorials/touch-sensor-values),
+[Pause Until Pressed](/tutorials/pause-until-pressed)

editor/deploy.ts

@@ -63,7 +63,9 @@ const rbfTemplate = `
 export function deployCoreAsync(resp: pxtc.CompileResult) {
     let w: pxt.editor.Ev3Wrapper
 
-    let filename = resp.downloadFileBaseName || "pxt"
+    const origElfUF2 = UF2.parseFile(pxt.U.stringToUint8Array(ts.pxtc.decodeBase64(resp.outfiles[pxt.outputName()])))
+    
+    let filename = resp.downloadFileBaseName || (origElfUF2[0].filename || "").replace(/^Projects\//, "").replace(/\.elf$/, "") || "pxt"
     filename = filename.replace(/^lego-/, "")
 
     let fspath = "../prjs/BrkProg_SAVE/"
@@ -77,8 +79,6 @@ export function deployCoreAsync(resp: pxtc.CompileResult) {
     let rbfBIN = pxt.U.fromHex(rbfHex)
     pxt.HF2.write16(rbfBIN, 4, rbfBIN.length)
 
-    let origElfUF2 = UF2.parseFile(pxt.U.stringToUint8Array(ts.pxtc.decodeBase64(resp.outfiles[pxt.outputName()])))
-
     let mkFile = (ext: string, data: Uint8Array = null) => {
         let f = UF2.newBlockFile()
         f.filename = "Projects/" + filename + ext

ev3.code-workspace

@@ -0,0 +1,13 @@
+{
+	"folders": [
+		{
+			"path": "."
+		},
+		{
+			"path": "../pxt-common-packages"
+		},
+		{
+			"path": "../pxt"
+		}
+	]
+}

jenkins.groovy

@@ -1,41 +0,0 @@
-import jobs.generation.Utilities;
-import jobs.generation.InternalUtilities;
-
-def project = GithubProject
-def projectName = "pxt-ev3"
-
-[true, false].each { isPR ->
-    def newJobName = projectName
-
-    if (isPR) {
-        newJobName += "_PR"
-    } else {
-        newJobName += "_Push"
-    }
-
-    def newJob = job(newJobName) {
-        steps {
-            shell("chmod +x ./jenkins.sh")
-            shell("./jenkins.sh ${isPR}")
-        }
-
-        if (!isPR) {
-            wrappers {
-                credentialsBinding {
-                    string("PXT_ACCESS_TOKEN", "pxt_access_token")
-                    string("PXT_RELEASE_REPO", "pxt_release_repo_ev3")
-                    string("CROWDIN_KEY", "pxt_crowdin_key")
-                }
-            }
-        }
-    }
-
-    Utilities.setMachineAffinity(newJob, "Ubuntu", "20161020")
-    InternalUtilities.standardJobSetup(newJob, project, isPR, "*/*")
-
-    if (isPR) {
-        Utilities.addGithubPRTrigger(newJob, "Default Testing")
-    } else {
-        Utilities.addGithubPushTrigger(newJob)
-    }
-}

jenkins.sh

@@ -1,56 +0,0 @@
-#!/usr/bin/env bash
-
-# Set up NVM
-export NVM_DIR="/home/dotnet-bot/.nvm"
-[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" 
-
-nvm install 8
-
-# Set up build environment variables
-echo ---------- Setting build environment variables
-echo Git branch: $GIT_BRANCH
-echo isPR: $1
-
-originRegex="^origin/.*"
-branchRegex="^origin/\K.*(?=$)"
-releaseBranchRegex="^(master|v\d+)$"
-
-if [[ "$GIT_BRANCH" =~ $originRegex ]]; then
-    branchName=$(echo ${GIT_BRANCH} | grep -oP $branchRegex)
-    echo Setting TRAVIS_BRANCH to ${branchName}
-    export TRAVIS_BRANCH=${branchName}
-else
-    echo Setting TRAVIS_BRANCH to $GIT_BRANCH
-    export TRAVIS_BRANCH=$GIT_BRANCH
-fi
-
-if [ "$1" == "false" ]; then
-    echo Setting TRAVIS_PULL_REQUEST to false
-    export TRAVIS_PULL_REQUEST=false
-
-    if [[ "$TRAVIS_BRANCH" =~ $releaseBranchRegex ]]; then
-        if [[ -z $PXT_RELEASE_REPO ]]; then
-            echo Cannot find release repo\; skipping tag checks
-        else
-            gitTag=$(git describe --tags --exact-match 2> /dev/null)
-            builtTag=$(git ls-remote --tags $PXT_RELEASE_REPO | grep -o "refs/tags/$gitTag$")
-
-            echo Current tag: $gitTag
-            echo Built tag: $builtTag
-
-            if [[ ! -z $gitTag && -z $builtTag ]]; then
-                echo Built tag not found\; building tag
-                echo Setting TRAVIS_BRANCH to $gitTag
-                export TRAVIS_BRANCH=$gitTag
-                echo Setting TRAVIS_TAG to $gitTag
-                export TRAVIS_TAG=$gitTag
-            else
-                echo Not a tag build
-            fi
-        fi
-    fi
-fi
-
-# Perform build
-npm install
-npm test

libs/color-sensor/color.ts

@@ -1,5 +1,5 @@
 const enum ColorSensorMode {
-    None = -1,
+    None = 0,
     //% block="reflected light intensity"
     ReflectedLightIntensity = 0,
     //% block="ambient light intensity"
@@ -15,7 +15,9 @@ enum LightIntensityMode {
     //% block="reflected light"
     Reflected = ColorSensorMode.ReflectedLightIntensity,
     //% block="ambient light"
-    Ambient = ColorSensorMode.AmbientLightIntensity
+    Ambient = ColorSensorMode.AmbientLightIntensity,
+    //% block="reflected light (raw)"
+    ReflectedRaw = ColorSensorMode.RefRaw
 }
 
 const enum ColorSensorColor {
@@ -93,6 +95,8 @@ namespace sensors {
                 || this.mode == ColorSensorMode.AmbientLightIntensity
                 || this.mode == ColorSensorMode.ReflectedLightIntensity)
                 return this.getNumber(NumberFormat.UInt8LE, 0)
+            if (this.mode == ColorSensorMode.RefRaw || this.mode == ColorSensorMode.RgbRaw)
+                return this.getNumber(NumberFormat.UInt16LE, 0)
             return 0
         }
 
@@ -114,7 +118,7 @@ namespace sensors {
 
         _update(prev: number, curr: number) {
             if (this.calibrating) return; // simply ignore data updates while calibrating
-            if (this.mode == ColorSensorMode.Color)
+            if (this.mode == ColorSensorMode.Color || this.mode == ColorSensorMode.RgbRaw || this.mode == ColorSensorMode.RefRaw)
                 control.raiseEvent(this._id, this._colorEventValue(curr));
             else
                 this.thresholdDetector.setLevel(curr);
@@ -179,6 +183,23 @@ namespace sensors {
             return this.getNumber(NumberFormat.UInt8LE, 0)
         }
 
+        /**
+         * Get the current raw rgb values as an array from the color sensor.
+         * @param sensor the color sensor to query the request
+         */
+        //% help=sensors/color-sensor/rgbraw
+        //% blockId=colorRgbRaw block="**color sensor** %this| RGB raw"
+        //% parts="colorsensor"
+        //% blockNamespace=sensors
+        //% this.fieldEditor="ports"
+        //% weight=1
+        //% group="Color Sensor"
+        //% blockGap=8
+        rgbRaw(): number[] {
+            this.setMode(ColorSensorMode.RgbRaw);
+            return [this.getNumber(NumberFormat.UInt16LE, 0), this.getNumber(NumberFormat.UInt16LE, 2), this.getNumber(NumberFormat.UInt16LE, 4)];
+        }
+
         /**
          * Registers code to run when the ambient light changes.
          * @param condition the light condition
@@ -225,11 +246,16 @@ namespace sensors {
         //% parts="colorsensor"
         //% blockNamespace=sensors
         //% this.fieldEditor="ports"
-        //% weight=87
+        //% weight=87 blockGap=8
         //% group="Color Sensor"
         light(mode: LightIntensityMode) {
             this.setMode(<ColorSensorMode><number>mode)
-            return this.getNumber(NumberFormat.UInt8LE, 0)
+            switch(mode) {
+                case LightIntensityMode.ReflectedRaw:
+                    return this.reflectedLightRaw();
+                default:
+                    return this.getNumber(NumberFormat.UInt8LE, 0)
+            }
         }
 
         /**
@@ -248,6 +274,15 @@ namespace sensors {
             return this.light(LightIntensityMode.Reflected);
         }
 
+        /**
+         * Gets the raw reflection light value
+         */
+        //%
+        reflectedLightRaw(): number {
+            this.setMode(ColorSensorMode.RefRaw);
+            return this.getNumber(NumberFormat.UInt16LE, 0);
+        }
+
         /**
          * Set a threshold value
          * @param condition the dark or bright light condition

libs/core/buttons.ts

@@ -159,12 +159,6 @@ namespace brick {
             if (sl[i])
                 ret |= 1 << i
         }
-        // this needs to be done in query(), which is run without the main JS execution mutex
-        // otherwise, while(true){} will lock the device
-        if (ret & DAL.BUTTON_ID_ESCAPE) {
-            motors.stopAll(); // ensuring that all motors are off
-            control.reset()
-        }
         return ret
     }
 

libs/core/input.ts

@@ -25,8 +25,17 @@ namespace sensors.internal {
         })
     }
 
+    export function bufferToString(buf: Buffer): string {
+        let s = ''
+        for (let i = 0; i < buf.length; i++)
+            s += String.fromCharCode(buf[i])
+
+        return s
+    }
+
     let analogMM: MMap
     let uartMM: MMap
+    let IICMM: MMap
     let devcon: Buffer
     let sensorInfos: SensorInfo[]
 
@@ -36,11 +45,13 @@ namespace sensors.internal {
         sensors: Sensor[]
         connType: number
         devType: number
+        iicid: string
 
         constructor(p: number) {
             this.port = p
             this.connType = DAL.CONN_NONE
             this.devType = DAL.DEVICE_TYPE_NONE
+            this.iicid = ''
             this.sensors = []
         }
     }
@@ -57,20 +68,21 @@ namespace sensors.internal {
         uartMM = control.mmap("/dev/lms_uart", UartOff.Size, 0)
         if (!uartMM) control.fail("no uart sensor")
 
-        forever(() => {
-            detectDevices()
-            pause(500)
-        })
+        IICMM = control.mmap("/dev/lms_iic", IICOff.Size, 0)
+        if (!IICMM) control.fail("no iic sensor")
 
-        for (let info_ of sensorInfos) {
-            let info = info_
+        unsafePollForChanges(500, 
+            () => { return hashDevices(); }, 
+            (prev, curr) => { detectDevices(); 
+        });
+        sensorInfos.forEach(info => {
             unsafePollForChanges(50, () => {
                 if (info.sensor) return info.sensor._query()
                 return 0
             }, (prev, curr) => {
                 if (info.sensor) info.sensor._update(prev, curr)
             })
-        }
+        })
 
     }
 
@@ -89,6 +101,15 @@ namespace sensors.internal {
         //serial.writeLine("UART " + port + " / " + mode + " - " + info)
     }
 
+    export function readIICID(port: number) {
+        const buf = output.createBuffer(IICStr.Size)
+        buf[IICStr.Port] = port
+        IICMM.ioctl(IO.IIC_READ_TYPE_INFO, buf)
+        const manufacturer = bufferToString(buf.slice(IICStr.Manufacturer, 8))
+        const sensorType = bufferToString(buf.slice(IICStr.SensorType, 8))
+        return manufacturer + sensorType;
+    }
+
     export function getBatteryInfo(): { temp: number; current: number } {
         init();
         return {
@@ -97,52 +118,87 @@ namespace sensors.internal {
         }
     }
 
-    function detectDevices() {
-        let conns = analogMM.slice(AnalogOff.InConn, DAL.NUM_INPUTS)
-        let numChanged = 0
+    function hashDevices(): number {
+        const conns = analogMM.slice(AnalogOff.InConn, DAL.NUM_INPUTS)
+        let r = 0;
+        for(let i = 0; i < conns.length; ++i) {
+            r = (r << 8 | conns[i]);
+        }
+        return r;
+    }
 
-        for (let info of sensorInfos) {
-            let newConn = conns[info.port]
-            if (newConn == info.connType)
-                continue
+    let nonActivated = 0;
+    function detectDevices() {
+        //control.dmesg(`detect devices (${nonActivated} na)`)
+        const conns = analogMM.slice(AnalogOff.InConn, DAL.NUM_INPUTS)
+        let numChanged = 0;
+        const uartSensors: SensorInfo[] = [];
+
+        for (const sensorInfo of sensorInfos) {
+            const newConn = conns[sensorInfo.port]
+            if (newConn == sensorInfo.connType) {
+                // control.dmesg(`connection unchanged ${newConn} at ${sensorInfo.port}`)
+                continue;
+            }
             numChanged++
-            info.connType = newConn
-            info.devType = DAL.DEVICE_TYPE_NONE
+            sensorInfo.connType = newConn
+            sensorInfo.devType = DAL.DEVICE_TYPE_NONE
             if (newConn == DAL.CONN_INPUT_UART) {
-                control.dmesg(`new UART connection at ${info.port}`)
-                setUartMode(info.port, 0)
-                let uinfo = readUartInfo(info.port, 0)
-                info.devType = uinfo[TypesOff.Type]
-                control.dmesg(`UART type ${info.devType}`)
+                control.dmesg(`new UART connection at ${sensorInfo.port}`)
+                updateUartMode(sensorInfo.port, 0);
+                uartSensors.push(sensorInfo);
+            } else if (newConn == DAL.CONN_NXT_IIC) {
+                control.dmesg(`new IIC connection at ${sensorInfo.port}`)
+                sensorInfo.devType = DAL.DEVICE_TYPE_IIC_UNKNOWN
+                sensorInfo.iicid = readIICID(sensorInfo.port)
+                control.dmesg(`IIC ID ${sensorInfo.iicid.length}`)
             } else if (newConn == DAL.CONN_INPUT_DUMB) {
-                control.dmesg(`new DUMB connection at ${info.port}`)
+                control.dmesg(`new DUMB connection at ${sensorInfo.port}`)
                 // TODO? for now assume touch
-                info.devType = DAL.DEVICE_TYPE_TOUCH
+                sensorInfo.devType = DAL.DEVICE_TYPE_TOUCH
             } else if (newConn == DAL.CONN_NONE || newConn == 0) {
-                control.dmesg(`disconnect at ${info.port}`)
+                control.dmesg(`disconnect at port ${sensorInfo.port}`)
             } else {
-                control.dmesg(`unknown connection type: ${newConn} at ${info.port}`)
+                control.dmesg(`unknown connection type: ${newConn} at ${sensorInfo.port}`)
             }
         }
 
-        if (numChanged == 0)
+        if (uartSensors.length > 0) {
+            setUartModes();
+            for (const sensorInfo of uartSensors) {
+                let uinfo = readUartInfo(sensorInfo.port, 0)
+                sensorInfo.devType = uinfo[TypesOff.Type]
+                control.dmesg(`UART type ${sensorInfo.devType}`)
+            }
+        }
+
+        if (numChanged == 0 && nonActivated == 0)
             return
 
-        for (let si of sensorInfos) {
-            if (si.sensor && si.sensor._deviceType() != si.devType) {
-                si.sensor = null
-            }
-            if (si.devType != DAL.DEVICE_TYPE_NONE) {
-                // TODO figure out compiler problem when '|| null' is added here!
-                si.sensor = si.sensors.filter(s => s._deviceType() == si.devType)[0]
-                if (si.sensor == null) {
-                    control.dmesg(`sensor not found for type=${si.devType} at ${si.port}`)
+        control.dmesg(`updating sensor status`)
+        nonActivated = 0;
+        for (const sensorInfo of sensorInfos) {
+            if (sensorInfo.devType == DAL.DEVICE_TYPE_IIC_UNKNOWN) {
+                sensorInfo.sensor = sensorInfo.sensors.filter(s => s._IICId() == sensorInfo.iicid)[0]
+                if (!sensorInfo.sensor) {
+                    control.dmesg(`sensor not found for iicid=${sensorInfo.iicid} at ${sensorInfo.port}`)
+                    nonActivated++;
                 } else {
-                    control.dmesg(`sensor connected type=${si.devType} at ${si.port}`)
-                    si.sensor._activated()
+                    control.dmesg(`sensor connected iicid=${sensorInfo.iicid} at ${sensorInfo.port}`)
+                    sensorInfo.sensor._activated()
+                }
+            } else if (sensorInfo.devType != DAL.DEVICE_TYPE_NONE) {
+                sensorInfo.sensor = sensorInfo.sensors.filter(s => s._deviceType() == sensorInfo.devType)[0]
+                if (!sensorInfo.sensor) {
+                    control.dmesg(`sensor not found for type=${sensorInfo.devType} at ${sensorInfo.port}`)
+                    nonActivated++;
+                } else {
+                    control.dmesg(`sensor connected type=${sensorInfo.devType} at ${sensorInfo.port}`)
+                    sensorInfo.sensor._activated()
                 }
             }
         }
+        //control.dmesg(`detect devices done`)
     }
 
     export class Sensor extends control.Component {
@@ -187,6 +243,10 @@ namespace sensors.internal {
         _deviceType() {
             return 0
         }
+
+        _IICId() {
+            return ''
+        }
     }
 
     export class AnalogSensor extends Sensor {
@@ -212,7 +272,6 @@ namespace sensors.internal {
 
         _activated() {
             this.realmode = 0
-            // uartReset(this.port) // TODO is it ever needed?
             this._setMode(this.mode)
         }
 
@@ -243,6 +302,55 @@ namespace sensors.internal {
         }
     }
 
+    export class IICSensor extends Sensor {
+        protected mode: number // the mode user asked for
+        protected realmode: number // the mode the hardware is in
+        private readLength: number
+
+        constructor(port: number) {
+            super(port)
+            this.mode = 0
+            this.realmode = 0
+            this.readLength = 1;
+        }
+
+        _activated() {
+            this.realmode = 0
+            this._setMode(this.mode)
+        }
+
+        protected _setMode(m: number) {
+            let v = m | 0
+            this.mode = v
+            if (!this.isActive()) return
+            if (this.realmode != this.mode) {
+                this.realmode = v
+                setIICMode(this._port, this._deviceType(), v)
+            }
+        }
+
+        getBytes(): Buffer {
+            return getIICBytes(this.isActive() ? this._port : -1, this.readLength)
+        }
+
+        getNumber(fmt: NumberFormat, off: number) {
+            if (!this.isActive())
+                return 0
+            return getIICNumber(this.readLength, fmt, off, this._port)
+        }
+
+        transaction(deviceAddress: number, write: number[], read: number) {
+            this.readLength = read;
+            transactionIIC(this._port, deviceAddress, write, read)
+        }
+
+        _deviceType() {
+            return DAL.DEVICE_TYPE_IIC_UNKNOWN
+        }
+    }
+
+    export const iicsensor = new IICSensor(3)
+
     function uartReset(port: number) {
         if (port < 0) return
         control.dmesg(`UART reset at ${port}`)
@@ -267,6 +375,7 @@ namespace sensors.internal {
     }
 
     function uartClearChange(port: number) {
+        control.dmesg(`UART clear change`);
         const UART_DATA_READY = 8
         const UART_PORT_CHANGED = 1
         while (true) {
@@ -288,20 +397,43 @@ namespace sensors.internal {
         }
     }
 
+    function setUartModes() {
+        control.dmesg(`UART set modes`)
+        uartMM.ioctl(IO.UART_SET_CONN, devcon)
+        const ports: number[] = [];
+        for (let port = 0; port < DAL.NUM_INPUTS; ++port) {
+            if (devcon.getNumber(NumberFormat.Int8LE, DevConOff.Connection + port) == DAL.CONN_INPUT_UART) {
+                ports.push(port);
+            }
+        }
+
+        while (ports.length) {
+            const port = ports.pop();
+            const status = waitNonZeroUartStatus(port)
+            control.dmesg(`UART set mode ${status} at ${port}`);
+        }
+    }
+
+    function updateUartMode(port: number, mode: number) {
+        control.dmesg(`UART set mode to ${mode} at ${port}`)
+        devcon.setNumber(NumberFormat.Int8LE, DevConOff.Connection + port, DAL.CONN_INPUT_UART)
+        devcon.setNumber(NumberFormat.Int8LE, DevConOff.Type + port, 33)
+        devcon.setNumber(NumberFormat.Int8LE, DevConOff.Mode + port, mode)
+    }
+
     function setUartMode(port: number, mode: number) {
         const UART_PORT_CHANGED = 1
         while (true) {
             if (port < 0) return
-            control.dmesg(`UART set mode to ${mode} at ${port}`)
-            devcon.setNumber(NumberFormat.Int8LE, DevConOff.Connection + port, DAL.CONN_INPUT_UART)
-            devcon.setNumber(NumberFormat.Int8LE, DevConOff.Type + port, 33)
-            devcon.setNumber(NumberFormat.Int8LE, DevConOff.Mode + port, mode)
+            updateUartMode(port, mode);
             uartMM.ioctl(IO.UART_SET_CONN, devcon)
             let status = waitNonZeroUartStatus(port)
             if (status & UART_PORT_CHANGED) {
+                control.dmesg(`UART clear changed at ${port}`)
                 uartClearChange(port)
             } else {
-                break
+                control.dmesg(`UART status ${status}`);
+                break;
             }
             pause(10)
         }
@@ -322,6 +454,48 @@ namespace sensors.internal {
             UartOff.Raw + DAL.MAX_DEVICE_DATALENGTH * 300 * port + DAL.MAX_DEVICE_DATALENGTH * index + off)
     }
 
+    export function setIICMode(port: number, type: number, mode: number) {
+        if (port < 0) return;
+        devcon.setNumber(NumberFormat.Int8LE, DevConOff.Connection + port, DAL.CONN_NXT_IIC)
+        devcon.setNumber(NumberFormat.Int8LE, DevConOff.Type + port, type)
+        devcon.setNumber(NumberFormat.Int8LE, DevConOff.Mode + port, mode)
+        IICMM.ioctl(IO.IIC_SET_CONN, devcon)
+    }
+
+    export function transactionIIC(port: number, deviceAddress: number, writeBuf: number[], readLen: number) {
+        if (port < 0) return;
+        let iicdata = output.createBuffer(IICDat.Size)
+        iicdata.setNumber(NumberFormat.Int8LE, IICDat.Port, port)
+        iicdata.setNumber(NumberFormat.Int8LE, IICDat.Repeat, 0)
+        iicdata.setNumber(NumberFormat.Int16LE, IICDat.Time, 0)
+        iicdata.setNumber(NumberFormat.Int8LE, IICDat.WrLng, writeBuf.length + 1)
+        for (let i = 0; i < writeBuf.length; i++)
+            iicdata.setNumber(NumberFormat.Int8LE, IICDat.WrData + i + 1, writeBuf[i])
+        iicdata.setNumber(NumberFormat.Int8LE, IICDat.WrData, deviceAddress)
+        iicdata.setNumber(NumberFormat.Int8LE, IICDat.RdLng, readLen)
+        IICMM.ioctl(IO.IIC_SETUP, iicdata)
+    }
+
+    export function getIICBytes(port: number, length: number) {
+        if (port < 0) return output.createBuffer(length);
+        let index = IICMM.getNumber(NumberFormat.UInt16LE, IICOff.Actual + port * 2);
+        let buf = IICMM.slice(
+            IICOff.Raw + DAL.MAX_DEVICE_DATALENGTH * 300 * port + DAL.MAX_DEVICE_DATALENGTH * index,
+            length
+        );
+
+        // Reverse
+        for (let i = 0; i < length / 2; i++) {
+            let c = buf[i]
+            buf[i] = buf[length - i - 1]
+            buf[length - i - 1] = c
+        }
+        return buf;
+    }
+
+    export function getIICNumber(length: number, format: NumberFormat, off: number, port: number) {
+        return getIICBytes(port, length).getNumber(format, off)
+    }
 
     const enum NxtColOff {
         Calibration = 0, // uint32[4][3]
@@ -405,6 +579,52 @@ namespace sensors.internal {
         Size = 58
     }
 
+    const enum IICOff {
+        TypeData = 0, // Types[8][4]
+        Repeat = 1792, // uint16[300][4]
+        Raw = 4192, // int8[32][300][4]
+        Actual = 42592, // uint16[4]
+        LogIn = 42600, // uint16[4]
+        Status = 42608, // int8[4]
+        Output = 42612, // int8[32][4]
+        OutputLength = 42740, // int8[4]
+        Size = 42744
+    }
+
+    const enum IICCtlOff {
+        TypeData = 0, // Types
+        Port = 56, // int8
+        Mode = 57, // int8
+        Size = 58
+    }
+
+    const enum IICDat {
+        Result = 0,  // result
+        Port = 4, // int8
+        Repeat = 5, // int8
+        Time = 6, // int16
+        WrLng = 8, // int8
+        WrData = 9, // int8[32]
+        RdLng = 41, // int8
+        RdData = 42, //int8[32]
+        Size = 74,
+    }
+
+    const enum IICStr {
+        Port = 0, // int8
+        Time = 2, // int16
+        Type = 4, // int8
+        Mode = 5, // int8
+        Manufacturer = 6, // int8[9]
+        SensorType = 15, // int[9]
+        SetupLng = 24, // int8
+        SetupString = 28, // ulong
+        PollLng = 32, // int8
+        PollString = 36, // ulong
+        ReadLng = 40, // int8
+        Size = 44
+    }
+
     const enum IO {
         UART_SET_CONN = 0xc00c7500,
         UART_READ_MODE_INFO = 0xc03c7501,
@@ -472,7 +692,7 @@ namespace sensors {
         }
 
         public threshold(t: ThresholdState): number {
-            switch(t) {
+            switch (t) {
                 case ThresholdState.High: return this.highThreshold;
                 case ThresholdState.Low: return this.lowThreshold;
                 default: return (this.max - this.min) / 2;
@@ -512,5 +732,5 @@ namespace sensors {
                     break;
             }
         }
-    }    
+    }
 }

libs/core/linux.cpp

@@ -14,12 +14,19 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <malloc.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include "ev3const.h"
 
 #define THREAD_DBG(...)
 
 #define MALLOC_LIMIT (8 * 1024 * 1024)
 #define MALLOC_CHECK_PERIOD (1024 * 1024)
 
+namespace Array_ {
+RefCollection *mk(unsigned flags);
+}
+
 void *xmalloc(size_t sz) {
     static size_t allocBytes = 0;
     allocBytes += sz;
@@ -144,6 +151,29 @@ static void startUsb() {
     pthread_detach(pid);
 }
 
+static void *exitThread(void *) {
+    int fd = open("/dev/lms_ui", O_RDWR, 0666);
+    if (fd < 0)
+        return 0;
+    uint8_t *data =
+        (uint8_t *)mmap(NULL, NUM_BUTTONS, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+    if (data == MAP_FAILED) {
+        close(fd);
+        return 0;
+    }
+    for (;;) {
+        if (data[5])
+            target_reset();
+        sleep_core_us(50000);
+    }
+}
+
+static void startExitThread() {
+    pthread_t pid;
+    pthread_create(&pid, NULL, exitThread, NULL);
+    pthread_detach(pid);
+}
+
 void sendUsb(uint16_t code, const char *data, int len) {
     while (len > 0) {
         int sz = len;
@@ -450,7 +480,7 @@ void stopLMS() {
         if (!pid)
             continue;
         char namebuf[100];
-        snprintf(namebuf, 1000, "/proc/%d/cmdline", pid);
+        snprintf(namebuf, 100, "/proc/%d/cmdline", pid);
         FILE *f = fopen(namebuf, "r");
         if (f) {
             fread(namebuf, 1, 99, f);
@@ -489,14 +519,22 @@ void runLMS() {
 }
 
 void stopMotors() {
-    uint8_t cmd[2] = { 0xA3, 0x0F };
+    uint8_t cmd[3] = {opOutputStop, 0x0F, 0};
     int fd = open("/dev/lms_pwm", O_RDWR);
-    write(fd, cmd, 2);
+    write(fd, cmd, 3);
+    close(fd);
+}
+
+void stopProgram() {
+    uint8_t cmd[1] = {opOutputProgramStop};
+    int fd = open("/dev/lms_pwm", O_RDWR);
+    write(fd, cmd, 1);
     close(fd);
 }
 
 extern "C" void target_reset() {
     stopMotors();
+    stopProgram();
     if (lmsPid)
         runLMS();
     else
@@ -510,6 +548,7 @@ void initRuntime() {
     DMESG("runtime starting...");
     stopLMS();
     startUsb();
+    startExitThread();
     pthread_t disp;
     pthread_create(&disp, NULL, evtDispatcher, NULL);
     pthread_detach(disp);
@@ -555,4 +594,66 @@ void dmesg(const char *format, ...) {
     fflush(dmesgFile);
     fdatasync(fileno(dmesgFile));
 }
+
+const char *progPath = "/mnt/ramdisk/prjs/BrkProg_SAVE";
+
+//%
+void deleteAllPrograms() {
+    char buf[1024];
+
+    struct dirent *ent;
+    DIR *dir;
+
+    dir = opendir(progPath);
+    if (dir == NULL)
+        return;
+
+    while ((ent = readdir(dir)) != NULL) {
+        if (ent->d_name[0] == '.')
+            continue;
+        snprintf(buf, sizeof(buf), "%s/%s", progPath, ent->d_name);
+        DMESG("FN: %s", ent->d_name);
+        // unlink(buf);
+    }
+
+    closedir(dir);
+}
+
+
+//%
+void deletePrjFile(String filename) {
+    if (strlen(filename->data) > 500 || strchr(filename->data, '/'))
+        return;
+    char buf[1024];
+    snprintf(buf, sizeof(buf), "%s/%s", progPath, filename->data);
+    unlink(buf);
+}
+
+//%
+RefCollection *listPrjFiles() {
+    auto res = Array_::mk(0);
+    //registerGCObj(res);
+
+    auto dp = opendir(progPath);
+
+    for (;;) {
+        dirent *ep = dp ? readdir(dp) : NULL;
+        if (!ep)
+            break;
+        if (ep->d_name[0] == '.')
+            continue;
+        auto str = mkString(ep->d_name, -1);
+        //registerGCObj(str);
+        res->push((TValue)str);
+        //unregisterGCObj(str);
+    }
+    if (dp)
+        closedir(dp);
+    //unregisterGCObj(res);
+
+    return res;
+}
+
+
+
 } // namespace pxt

libs/core/output.ts

@@ -127,31 +127,43 @@ namespace motors {
         reset(Output.ALL)
     }
 
+    interface MoveSchedule {
+        speed: number;
+        useSteps: boolean;
+        steps: number[];
+    }
+
     //% fixedInstances
     export class MotorBase extends control.Component {
         protected _port: Output;
         protected _portName: string;
         protected _brake: boolean;
+        protected _regulated: boolean;
         private _pauseOnRun: boolean;
         private _initialized: boolean;
         private _brakeSettleTime: number;
         private _init: () => void;
-        private _run: (speed: number) => void;
-        private _move: (steps: boolean, stepsOrTime: number, speed: number) => void;
+        private _accelerationSteps: number;
+        private _accelerationTime: number;
+        private _decelerationSteps: number;
+        private _decelerationTime: number;
 
         protected static output_types: number[] = [0x7, 0x7, 0x7, 0x7];
 
-        constructor(port: Output, init: () => void, run: (speed: number) => void, move: (steps: boolean, stepsOrTime: number, speed: number) => void) {
+        constructor(port: Output, init: () => void) {
             super();
             this._port = port;
             this._portName = outputToName(this._port);
             this._brake = false;
+            this._regulated = true;
             this._pauseOnRun = true;
             this._initialized = false;
             this._brakeSettleTime = 10;
             this._init = init;
-            this._run = run;
-            this._move = move;
+            this._accelerationSteps = 0;
+            this._accelerationTime = 0;
+            this._decelerationSteps = 0;
+            this._decelerationTime = 0;
         }
 
         /**
@@ -263,6 +275,34 @@ namespace motors {
             reset(this._port);
         }
 
+        private normalizeSchedule(speed: number, step1: number, step2: number, step3: number, unit: MoveUnit): MoveSchedule {
+            const r: MoveSchedule = {
+                speed: Math.clamp(-100, 100, speed >> 0),
+                useSteps: true,
+                steps: [step1, step2, step3]
+            }
+            let scale = 1;
+            switch (unit) {
+                case MoveUnit.Rotations:
+                    scale = 360;
+                    r.useSteps = true;
+                    break;
+                case MoveUnit.Degrees:
+                    r.useSteps = true;
+                    break;
+                case MoveUnit.Seconds:
+                    scale = 1000;
+                    r.useSteps = false;
+                    break;
+                default:
+                    r.useSteps = false;
+                    break;
+            }
+            for (let i = 0; i < r.steps.length; ++i)
+                r.steps[i] = Math.max(0, (r.steps[i] * scale) | 0);
+            return r;
+        }
+
         /**
          * Runs the motor at a given speed for limited time or distance.
          * @param speed the speed from ``100`` full forward to ``-100`` full backward, eg: 50
@@ -277,41 +317,162 @@ namespace motors {
         //% help=motors/motor/run
         run(speed: number, value: number = 0, unit: MoveUnit = MoveUnit.MilliSeconds) {
             this.init();
-            speed = Math.clamp(-100, 100, speed >> 0);
+            const schedule = this.normalizeSchedule(speed, 0, value, 0, unit);
             // stop if speed is 0
-            if (!speed) {
+            if (!schedule.speed) {
                 this.stop();
                 return;
             }
             // special: 0 is infinity
-            if (value == 0) {
-                this._run(speed);
+            if (schedule.steps[0] + schedule.steps[1] + schedule.steps[2] == 0) {
+                this._run(schedule.speed);
+                return;
+            }
+
+            // timed motor moves
+            const steps = schedule.steps;
+            const useSteps = schedule.useSteps;
+
+            // compute ramp up and down
+            steps[0] = (useSteps ? this._accelerationSteps : this._accelerationTime) || 0;
+            steps[2] = (useSteps ? this._decelerationSteps : this._decelerationTime) || 0;
+            if (steps[0] + steps[2] > steps[1]) {
+                // rescale
+                const r = steps[1] / (steps[0] + steps[2]);
+                steps[0] = Math.floor(steps[0] * r);
+                steps[2] *= Math.floor(steps[2] * r);
+            }
+            steps[1] -= (steps[0] + steps[2]);
+
+            // send ramped command
+            this._schedule(schedule);
+            this.pauseOnRun(steps[0] + steps[1] + steps[2]);
+        }
+
+        /**
+         * Schedules a run of the motor with an acceleration, constant and deceleration phase.
+         * @param speed the speed from ``100`` full forward to ``-100`` full backward, eg: 50
+         * @param acceleration acceleration phase measured distance or rotation
+         * @param value measured distance or rotation
+         * @param deceleration deceleration phase measured distance or rotation
+         * @param unit (optional) unit of the value
+         */
+        //% blockId=motorSchedule block="schedule %motor at %speed=motorSpeedPicker|\\%|for %acceleration|%value|%deceleration||%unit"
+        //% weight=99 blockGap=8
+        //% group="Move"
+        //% motor.fieldEditor="motors"
+        //% help=motors/motor/schedule
+        //% inlineInputMode=inline
+        schedule(speed: number, acceleration: number, value: number, deceleration: number, unit: MoveUnit = MoveUnit.MilliSeconds) {
+            this.init();
+            const schedule = this.normalizeSchedule(speed, acceleration, value, deceleration, unit);
+            // stop if speed is 0
+            if (!schedule.speed) {
+                this.stop();
+                return;
+            }
+            // special case: do nothing
+            if (schedule.steps[0] + schedule.steps[1] + schedule.steps[2] == 0) {
                 return;
             }
             // timed motor moves
-            let useSteps: boolean;
-            let stepsOrTime: number;
+            const steps = schedule.steps;
+            // send ramped command
+            this._schedule(schedule);
+            this.pauseOnRun(steps[0] + steps[1] + steps[2]);
+        }
+
+        /**
+         * Specifies the amount of rotation or time for the acceleration
+         * of run commands.
+         */
+        //% blockId=outputMotorsetRunAcceleration block="set %motor|run acceleration to $value||$unit"
+        //% motor.fieldEditor="motors"
+        //% weight=21 blockGap=8
+        //% group="Properties"
+        //% help=motors/motor/set-run-acceleration-ramp
+        setRunAccelerationRamp(value: number, unit: MoveUnit = MoveUnit.MilliSeconds) {
             switch (unit) {
                 case MoveUnit.Rotations:
-                    stepsOrTime = (value * 360) >> 0;
-                    useSteps = true;
+                    this._accelerationSteps = Math.max(0, (value * 360) | 0);
                     break;
                 case MoveUnit.Degrees:
-                    stepsOrTime = value >> 0;
-                    useSteps = true;
+                    this._accelerationSteps = Math.max(0, value | 0);
                     break;
                 case MoveUnit.Seconds:
-                    stepsOrTime = (value * 1000) >> 0;
-                    useSteps = false;
+                    this._accelerationTime = Math.max(0, (value * 1000) | 0);
                     break;
-                default:
-                    stepsOrTime = value;
-                    useSteps = false;
+                case MoveUnit.MilliSeconds:
+                    this._accelerationTime = Math.max(0, value | 0);
                     break;
             }
+        }
 
-            this._move(useSteps, stepsOrTime, speed);
-            this.pauseOnRun(stepsOrTime);
+        /**
+         * Specifies the amount of rotation or time for the acceleration
+         * of run commands.
+         */
+        //% blockId=outputMotorsetRunDeceleration block="set %motor|run deceleration ramp to $value||$unit"
+        //% motor.fieldEditor="motors"
+        //% weight=20 blockGap=8
+        //% group="Properties"
+        //% help=motors/motor/set-run-deceleration-ramp
+        setRunDecelerationRamp(value: number, unit: MoveUnit = MoveUnit.MilliSeconds) {
+            switch (unit) {
+                case MoveUnit.Rotations:
+                    this._decelerationSteps = Math.max(0, (value * 360) | 0);
+                    break;
+                case MoveUnit.Degrees:
+                    this._decelerationSteps = Math.max(0, value | 0);
+                    break;
+                case MoveUnit.Seconds:
+                    this._decelerationTime = Math.max(0, (value * 1000) | 0);
+                    break;
+                case MoveUnit.MilliSeconds:
+                    this._decelerationTime = Math.max(0, value | 0);
+                    break;
+            }
+        }
+
+        private _run(speed: number) {
+            // ramp up acceleration
+            if (this._accelerationTime) {
+                this._schedule({ speed: speed, useSteps: false, steps: [this._accelerationTime, 100, 0] });
+                pause(this._accelerationTime);
+            }
+            // keep going
+            const b = mkCmd(this._port, this._regulated ? DAL.opOutputSpeed : DAL.opOutputPower, 1)
+            b.setNumber(NumberFormat.Int8LE, 2, speed)
+            writePWM(b)
+            if (speed) {
+                writePWM(mkCmd(this._port, DAL.opOutputStart, 0))
+            }
+        }
+
+        private _schedule(schedule: MoveSchedule) {
+            const p = {
+                useSteps: schedule.useSteps,
+                step1: schedule.steps[0],
+                step2: schedule.steps[1],
+                step3: schedule.steps[2],
+                speed: this._regulated ? schedule.speed : undefined,
+                power: this._regulated ? undefined : schedule.speed,
+                useBrake: this._brake
+            };
+            step(this._port, p)
+        }
+
+        /**
+         * Indicates if the motor(s) speed should be regulated. Default is true.
+         * @param value true for regulated motor
+         */
+        //% blockId=outputMotorSetRegulated block="set %motor|regulated %value=toggleOnOff"
+        //% motor.fieldEditor="motors"
+        //% weight=58 blockGap=8
+        //% group="Properties"
+        //% help=motors/motor/set-regulated
+        setRegulated(value: boolean) {
+            this._regulated = value;
         }
 
         /**
@@ -338,8 +499,12 @@ namespace motors {
             pauseUntil(() => this.isReady(), timeOut);
         }
 
+        setRunSmoothness(accelerationPercent: number, decelerationPercent: number) {
+
+        }
+
         protected setOutputType(large: boolean) {
-           for (let i = 0; i < DAL.NUM_OUTPUTS; ++i) {
+            for (let i = 0; i < DAL.NUM_OUTPUTS; ++i) {
                 if (this._port & (1 << i)) {
                     // (0x07: Large motor, Medium motor = 0x08)
                     MotorBase.output_types[i] = large ? 0x07 : 0x08;
@@ -364,12 +529,10 @@ namespace motors {
     //% fixedInstances
     export class Motor extends MotorBase {
         private _large: boolean;
-        private _regulated: boolean;
 
         constructor(port: Output, large: boolean) {
-            super(port, () => this.__init(), (speed) => this.__setSpeed(speed), (steps, stepsOrTime, speed) => this.__move(steps, stepsOrTime, speed));
+            super(port, () => this.__init());
             this._large = large;
-            this._regulated = true;
             this.markUsed();
         }
 
@@ -381,44 +544,6 @@ namespace motors {
             this.setOutputType(this._large);
         }
 
-        private __setSpeed(speed: number) {
-            const b = mkCmd(this._port, this._regulated ? DAL.opOutputSpeed : DAL.opOutputPower, 1)
-            b.setNumber(NumberFormat.Int8LE, 2, speed)
-            writePWM(b)
-            if (speed) {
-                writePWM(mkCmd(this._port, DAL.opOutputStart, 0))
-            }
-        }
-
-        private __move(steps: boolean, stepsOrTime: number, speed: number) {
-            control.dmesg("motor.__move")
-            const p = {
-                useSteps: steps,
-                step1: 0,
-                step2: stepsOrTime,
-                step3: 0,
-                speed: this._regulated ? speed : undefined,
-                power: this._regulated ? undefined : speed,
-                useBrake: this._brake
-            };
-            control.dmesg("motor.1")
-            step(this._port, p)
-            control.dmesg("motor.__move end")
-        }
-
-        /**
-         * Indicates if the motor speed should be regulated. Default is true.
-         * @param value true for regulated motor
-         */
-        //% blockId=outputMotorSetRegulated block="set %motor|regulated %value=toggleOnOff"
-        //% motor.fieldEditor="motors"
-        //% weight=58 blockGap=8
-        //% group="Properties"
-        //% help=motors/motor/set-regulated
-        setRegulated(value: boolean) {
-            this._regulated = value;
-        }
-
         /**
          * Gets motor actual speed.
          * @param motor the port which connects to the motor
@@ -506,7 +631,7 @@ namespace motors {
     export class SynchedMotorPair extends MotorBase {
 
         constructor(ports: Output) {
-            super(ports, () => this.__init(), (speed) => this.__setSpeed(speed), (steps, stepsOrTime, speed) => this.__move(steps, stepsOrTime, speed));
+            super(ports, () => this.__init());
             this.markUsed();
         }
 
@@ -518,24 +643,6 @@ namespace motors {
             this.setOutputType(true);
         }
 
-        private __setSpeed(speed: number) {
-            syncMotors(this._port, {
-                speed: speed,
-                turnRatio: 0, // same speed
-                useBrake: !!this._brake
-            })
-        }
-
-        private __move(steps: boolean, stepsOrTime: number, speed: number) {
-            syncMotors(this._port, {
-                useSteps: steps,
-                speed: speed,
-                turnRatio: 0, // same speed
-                stepsOrTime: stepsOrTime,
-                useBrake: this._brake
-            });
-        }
-
         /**
          * The Move Tank block can make a robot drive forward, backward, turn, or stop. 
          * Use the Move Tank block for robot vehicles that have two Large Motors, 
@@ -561,10 +668,12 @@ namespace motors {
             speedRight = Math.clamp(-100, 100, speedRight >> 0);
 
             const speed = Math.abs(speedLeft) > Math.abs(speedRight) ? speedLeft : speedRight;
-            const turnRatio = speedLeft == speed
-                ? (100 - speedRight / speedLeft * 100)
-                : (speedLeft / speedRight * 100 - 100);
+            let turnRatio = speedLeft == speed
+                ? speedLeft == 0 ? 0 : (100 - speedRight / speedLeft * 100)
+                : speedRight == 0 ? 0 : (speedLeft / speedRight * 100 - 100);
+            turnRatio = Math.floor(turnRatio);
 
+            //control.dmesg(`tank ${speedLeft} ${speedRight} => ${turnRatio} ${speed}`)
             this.steer(turnRatio, speed, value, unit);
         }
 
@@ -743,26 +852,15 @@ namespace motors {
                 return
         }
         speed = Math.clamp(-100, 100, speed)
-        control.dmesg('speed: ' + speed)
-
         let b = mkCmd(out, op, 15)
-        control.dmesg('STEP 5')
         b.setNumber(NumberFormat.Int8LE, 2, speed)
         // note that b[3] is padding
-        control.dmesg('STEP 1')
         b.setNumber(NumberFormat.Int32LE, 4 + 4 * 0, opts.step1)
-        control.dmesg('STEP 2')
         b.setNumber(NumberFormat.Int32LE, 4 + 4 * 1, opts.step2)
-        control.dmesg('STEP 3')
         b.setNumber(NumberFormat.Int32LE, 4 + 4 * 2, opts.step3)
-        control.dmesg('STEP 4')
-        control.dmesg('br ' + opts.useBrake);
         const br = !!opts.useBrake ? 1 : 0;
-        control.dmesg('Step 4.5 ' + br)
         b.setNumber(NumberFormat.Int8LE, 4 + 4 * 3, br)
-        control.dmesg('STEP 5')
         writePWM(b)
-        control.dmesg('end step')
     }
 }
 

libs/gyro-sensor/docs/reference/sensors/gyro.md

@@ -3,6 +3,7 @@
 ```cards
 sensors.gyro1.angle();
 sensors.gyro1.rate();
+sensors.gyro1.calibrate();
 sensors.gyro1.reset();
 ```
 
@@ -10,4 +11,6 @@ sensors.gyro1.reset();
 
 [angle](/reference/sensors/gyro/angle),
 [rate](/reference/sensors/gyro/rate),
+[reset](/reference/sensors/gyro/calibrate),
 [reset](/reference/sensors/gyro/reset)
+

libs/gyro-sensor/docs/reference/sensors/gyro/angle.md

@@ -12,7 +12,7 @@ When the brick changes its position, it's moved in the direction of one of the a
 
 ## Accuracy and calibration
 
-Gyro sensors aren't perfectly accurate. Sometimes, because of temperature and changes in the way elecricity behaves in the sensor, the gyro returns a small error in it's measurement. This causes the gyro sensor to return an incorrect value for the amount of angle it detected. This might make your robot drive off course and not go to where you want it to.
+Gyro sensors aren't perfectly accurate. Sometimes, because of temperature and changes in the way electricity behaves in the sensor, the gyro returns a small error in it's measurement. This causes the gyro sensor to return an incorrect value for the amount of angle it detected. This might make your robot drive off course and not go to where you want it to.
 
 ### Drift
 
@@ -20,7 +20,7 @@ If you want to turn the tank or robot you built to the left by 45 degrees, you m
 
 The problem is that when you need to read the angle measurement frequently, the amount of error in the angle measurement may continue to increase. If the sensor thought it moved by 45 degrees the first time instead of really 49 degrees, your second turn will put you at 98 degrees when the sensor said 90 degrees. If you want a robot to turn right 90 degrees and drive for 5 meters, it might actually turn 98 degrees and drive 0.7 meters off course before it stops. This error in the sensor's measurement is called _drift_.
 
-### Time to reset
+### Calibration
 
 If errors in the angle values returned by the gyro sensor are making your project not work right, then it's time to **[reset](/reference/sensors/gyro/reset)**. A reset will return the gyro sensor's current angle value back to `0` and _calibrate_ for drift. Calibration is the process of finding out how much error there is in a sensor's measurement and then removing the error from the value returned to your program.
 
@@ -42,7 +42,14 @@ Turn the brick and press ENTER to see the current rotation angle of `gyro 2`.
 
 ```blocks
 brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
-    brick.showNumber(sensors.gyro2.angle(), 1)
+    sensors.gyro2.reset()
+})
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    sensors.gyro2.calibrate()
+})
+forever(function () {
+    brick.showNumber(control.millis(), 1)
+    brick.showNumber(sensors.gyro2.angle(), 2)
 })
 ```
 

libs/gyro-sensor/docs/reference/sensors/gyro/calibrate.md

@@ -0,0 +1,51 @@
+# calibrate
+
+Reset the zero reference for the gyro to current position of the brick.
+
+```sig
+sensors.gyro2.calibrate()
+```
+
+To make the gyro measure rotation angle from the current position of the brick, it is recalibrated. That is, the brick's current position is set to `0` degrees and rotation angle measurements start from there.
+
+This function adds a few pauses to ensure that the robot is still. If you only want to reset the sensor, use  [reset](/reference/gyro-sensor/reset).
+
+
+## ~hint
+
+The current position is considered to be the [_horizon_](https://en.wikipedia.org/wiki/Attitude_indicator) or a place that is the _plane of reference_ (this is possibly someplace that's flat for a horizontal reference).
+
+## ~
+
+## ~hint
+
+**Important**
+
+To properly reset the gyro, the brick must remain still (undisturbed) while the reset operation takes place.
+
+## ~
+
+## Calibration states
+
+Calibration happens in the following phases and each phase is tracked by the brick status light.
+
+* **orange**: sensor initialization. This phase ensures that the sensor is in the desired mode and ready to collect data.
+* **orange pulse**: data collection. Light information is being collected, move the sensor over the various light sources to detect.
+* **green**: calibration success. The calibration data has been saved.
+* **red flash**: sensor failure. We were unable to connect to the sensor.
+
+## Example
+Set the brick on a flat surface. Reset `gyro 2` and tilt the brick slightly. Reset it again while it's still tilted. Lay the brick down flat again and display the angle measurement.
+
+```blocks
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    sensors.gyro2.calibrate()
+})
+forever(function() {
+    brick.showNumber(sensors.gyro2.angle(), 1)
+})
+```
+
+## See also
+
+[angle](/reference/sensors/gyro/angle), [rate](/reference/sensors/gyro/rate)

libs/gyro-sensor/docs/reference/sensors/gyro/rate.md

@@ -13,12 +13,39 @@ When the brick is in motion, it moves in the direction of one of axes used to me
 
 * a [number](/types/number) that is the current rate of rotation in degrees per second.
 
+## ~hint
+
+## Accuracy and calibration
+
+Gyro sensors aren't perfectly accurate. Sometimes, because of temperature and changes in the way electricity behaves in the sensor, the gyro returns a small error in it's measurement. This causes the gyro sensor to return an incorrect value for the amount of angle it detected. This might make your robot drive off course and not go to where you want it to.
+
+### Drift
+
+If you want to turn the tank or robot you built to the left by 45 degrees, you might run the motor on the right side until the gyro reported that you turned by 45 degrees. What if the gyro was getting an error of 4 degrees every time it measured an angle? You may have actually turned 49 degrees when you expected to turn 45 degrees. Well, that might not be too bad if you use the gyro's angle value only once. It's fine if you just wanted to turn and stop or drive a short distance in only that direction.
+
+The problem is that when you need to read the angle measurement frequently, the amount of error in the angle measurement may continue to increase. If the sensor thought it moved by 45 degrees the first time instead of really 49 degrees, your second turn will put you at 98 degrees when the sensor said 90 degrees. If you want a robot to turn right 90 degrees and drive for 5 meters, it might actually turn 98 degrees and drive 0.7 meters off course before it stops. This error in the sensor's measurement is called _drift_.
+
+### Calibration
+
+If errors in the angle values returned by the gyro sensor are making your project not work right, then it's time to **[reset](/reference/sensors/gyro/reset)**. A reset will return the gyro sensor's current angle value back to `0` and _calibrate_ for drift. Calibration is the process of finding out how much error there is in a sensor's measurement and then removing the error from the value returned to your program.
+
+Are you using a gyro sensor in your project and need accuracy for your angle values? You should reset the gyro sensor at a regular intervals to improve precision in the values reported to your program.
+
+## ~
+
 ## Example
 
 Flash the status light to red if the roll rate of `gyro 2` is more that `30` degrees per second.
 
 ```blocks
+brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
+    sensors.gyro2.reset()
+})
+brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
+    sensors.gyro2.calibrate()
+})
 forever(function () {
+    brick.showNumber(sensors.gyro2.rate(), 2)
     if (sensors.gyro2.rate() > 30) {
         brick.setStatusLight(StatusLight.RedFlash)
     } else {

libs/gyro-sensor/docs/reference/sensors/gyro/reset.md

@@ -1,6 +1,6 @@
 # reset
 
-Reset the zero reference for the gyro to current position of the brick.
+Reset the gyro sensor.
 
 ```sig
 sensors.gyro2.reset()
@@ -8,6 +8,8 @@ sensors.gyro2.reset()
 
 To make the gyro measure rotation angle from the current position of the brick, it is recalibrated. That is, the brick's current position is set to `0` degrees and rotation angle measurements start from there.
 
+This function only resets the sensor; if you wish to have progress indication and a more robust calibration sequence, use [calibrate](/reference/gyro-sensor/calibrate).
+
 ## ~hint
 
 The current position is considered to be the [_horizon_](https://en.wikipedia.org/wiki/Attitude_indicator) or a place that is the _plane of reference_ (this is possibly someplace that's flat for a horizontal reference).
@@ -18,27 +20,18 @@ The current position is considered to be the [_horizon_](https://en.wikipedia.or
 
 **Important**
 
-To properly reset the gyro, the brick must remain still (undistrurbed) while the reset operation takes place.
+To properly reset the gyro, the brick must remain still (undisturbed) while the reset operation takes place.
 
 ## ~
 
-## Calibration states
-
-Calibration happens in the following phases and each phase is tracked by the brick status light.
-
-* **orange**: sensor initialization. This phase ensures that the sensor is in the desired mode and ready to collect data.
-* **orange pulse**: data collection. Light information is being collected, move the sensor over the various light sources to detect.
-* **green**: calibration success. The calibration data has been saved.
-* **red flash**: sensor failure. We were unable to connect to the sensor.
-
 ## Example
-Set the brick on a flat surface. Reset `gyro 2` and tilt the brick slighly. Reset it again while it's still tilted. Lay the brick down flat again and display the angle measurement.
+Set the brick on a flat surface. Reset `gyro 2` and tilt the brick slightly. Reset it again while it's still tilted. Lay the brick down flat again and display the angle measurement.
 
 ```blocks
 brick.buttonLeft.onEvent(ButtonEvent.Pressed, function () {
     sensors.gyro2.reset()
 })
-brick.buttonRight.onEvent(ButtonEvent.Pressed, function () {
+forever(function() {
     brick.showNumber(sensors.gyro2.angle(), 1)
 })
 ```

libs/gyro-sensor/gyro.ts

@@ -1,5 +1,5 @@
 const enum GyroSensorMode {
-    None = -1,
+    None = 0,
     Angle = 0,
     Rate = 1,
 }
@@ -9,12 +9,12 @@ namespace sensors {
     export class GyroSensor extends internal.UartSensor {
         private calibrating: boolean;
         private _drift: number;
-        private _drifting: boolean;
+        private _driftCorrection: boolean;
         constructor(port: number) {
             super(port)
             this.calibrating = false;
             this._drift = 0;
-            this._drifting = true;
+            this._driftCorrection = false;
             this.setMode(GyroSensorMode.Rate);
         }
 
@@ -70,14 +70,78 @@ namespace sensors {
 
             this.setMode(GyroSensorMode.Rate);
             let curr = this._query();
-            if (Math.abs(curr) < 20) {
-                const p = 0.0005;
+            if (Math.abs(curr) < 4 && this._driftCorrection) {
+                const p = 0.01;
                 this._drift = (1 - p) * this._drift + p * curr;
-                curr -= this._drift;
+                curr = Math.round(curr - this._drift);
             }
             return curr;
         }
 
+        /**
+         * Forces a calibration of the with light progress indicators. 
+         * Must be called when the sensor is completely still.
+         */
+        //% help=sensors/gyro/calibrate
+        //% block="calibrate **gyro** %this|"
+        //% blockId=gyroCalibrate
+        //% parts="gyroscope"
+        //% blockNamespace=sensors
+        //% this.fieldEditor="ports"
+        //% weight=51 blockGap=8
+        //% group="Gyro Sensor"
+        calibrate(): void {
+            if (this.calibrating) return; // already in calibration mode
+
+            const statusLight = brick.statusLight(); // save current status light
+            brick.setStatusLight(StatusLight.Orange);
+
+            this.calibrating = true;
+            // may be triggered by a button click,
+            // give time for robot to settle
+            pause(700);
+
+            // calibrating
+            brick.setStatusLight(StatusLight.OrangePulse);
+
+            // send a reset command
+            super.reset();
+            // wait till sensor is live
+            pauseUntil(() => this.isActive(), 7000);
+            // mode toggling
+            this.setMode(GyroSensorMode.Rate);
+            this.setMode(GyroSensorMode.Angle);
+            // switch back to the desired mode
+            this.setMode(this.mode);
+
+            // check sensor is ready
+            if (!this.isActive()) {
+                brick.setStatusLight(StatusLight.RedFlash); // didn't work
+                pause(2000);
+                brick.setStatusLight(statusLight); // restore previous light
+                this.calibrating = false;
+                return;
+            }
+
+            // compute drift
+            this._drift = 0;
+            if (this._driftCorrection && this.mode == GyroSensorMode.Rate) {
+                const n = 100;
+                for (let i = 0; i < n; ++i) {
+                    this._drift += this._query();
+                    pause(4);
+                }
+                this._drift /= n;
+            }
+
+            brick.setStatusLight(StatusLight.Green); // success
+            pause(1000);
+            brick.setStatusLight(statusLight); // resture previous light
+
+            // and we're done
+            this.calibrating = false;
+        }
+
         /**
          * Forces a calibration of the gyro. Must be called when the sensor is completely still.
          */
@@ -92,49 +156,10 @@ namespace sensors {
         reset(): void {
             if (this.calibrating) return; // already in calibration mode
 
-            const statusLight = brick.statusLight(); // save current status light
-            brick.setStatusLight(StatusLight.Orange);
-
             this.calibrating = true;
-            // may be triggered by a button click,
-            // give time for robot to settle
-            pause(700);
             // send a reset command
             super.reset();
-            // switch back to the desired mode
-            this.setMode(this.mode);
-            // wait till sensor is live
-            pauseUntil(() => this.isActive(), 5000);
-
-            // check sensor is ready
-            if (!this.isActive()) {
-                brick.setStatusLight(StatusLight.RedFlash); // didn't work
-                pause(2000);
-                brick.setStatusLight(statusLight); // restore previous light
-                return;
-            }
-
-            // give it a bit of time to init
-            pause(1000)
-
-            // calibrating
-            brick.setStatusLight(StatusLight.OrangePulse);
-
-            // compute drift
-            this._drift = 0;
-            if (this.mode == GyroSensorMode.Rate) {
-                for (let i = 0; i < 200; ++i) {
-                    this._drift += this._query();
-                    pause(4);
-                }
-                this._drift /= 200;
-            }
-
-            brick.setStatusLight(StatusLight.Green); // success
-            pause(1000);
-            brick.setStatusLight(statusLight); // resture previous light
-
-            // and we're done
+            // and done
             this.calibrating = false;
         }
 
@@ -152,7 +177,8 @@ namespace sensors {
          */
         //%
         setDriftCorrection(enabled: boolean) {
-            this._drifting = enabled;
+            this._driftCorrection = enabled;
+            this._drift = 0;
         }
     }
 

libs/infrared-sensor/ir.ts

@@ -1,5 +1,5 @@
 const enum InfraredSensorMode {
-    None = -1,
+    None = 0,
     Proximity = 0,
     Seek = 1,
     RemoteControl = 2,

libs/storage/pxt.json

@@ -1,6 +1,6 @@
 {
     "name": "storage",
-    "description": "USB Pen-drive support and flash storage",
+    "description": "USB Pen-drive support and flash storage - beta",
     "files": [
         "storage.cpp",
         "storage-core.ts",

package.json

@@ -1,8 +1,8 @@
 {
   "name": "pxt-ev3",
-  "version": "1.1.1",
+  "version": "1.1.17",
   "description": "LEGO MINDSTORMS EV3 for Microsoft MakeCode",
-  "private": true,
+  "private": false,
   "keywords": [
     "JavaScript",
     "education",
@@ -39,7 +39,7 @@
     "webfonts-generator": "^0.4.0"
   },
   "dependencies": {
-    "pxt-common-packages": "0.23.56",
+    "pxt-common-packages": "0.23.61",
     "pxt-core": "4.0.9"
   },
   "scripts": {

pxtarget.json

@@ -16,7 +16,8 @@
         "libs/infrared-sensor",
         "libs/gyro-sensor",
         "libs/screen",
-        "libs/ev3"
+        "libs/ev3",
+        "libs/storage"
     ],
     "simulator": {
         "autoRun": true,
@@ -112,7 +113,7 @@
         "docMenu": [
             {
                 "name": "Support",
-                "path": "https://www.lego.com/service/"
+                "path": "https://forum.makecode.com/"
             },
             {
                 "name": "Troubleshoot",

sim/state/input.ts

@@ -27,6 +27,7 @@ namespace pxsim.sensors {
 
     export function __sensorUsed(port: number, type: number) {
         //console.log("SENSOR INIT " + port + ", type: " + type);
+        if (type == DAL.DEVICE_TYPE_IIC_UNKNOWN) return; // Ignore IIC        
         if (!ev3board().hasSensor(port)) {
             const sensor = ev3board().getSensor(port, type);
             runtime.queueDisplayUpdate();

sim/state/motornode.ts

@@ -1,4 +1,5 @@
 namespace pxsim {
+    const MIN_RAMP_SPEED = 3;
 
     export class MotorNode extends BaseNode {
         isOutput = true;
@@ -30,11 +31,11 @@ namespace pxsim {
         }
 
         getSpeed() {
-            return this.speed * (!this._synchedMotor && this.polarity == 0 ? -1 : 1);
+            return Math.round(this.speed * (!this._synchedMotor && this.polarity == 0 ? -1 : 1));
         }
 
         getAngle() {
-            return this.angle;
+            return Math.round(this.angle);
         }
 
         // returns the slave motor if any
@@ -63,6 +64,12 @@ namespace pxsim {
             delete this.speedCmd;
             delete this.speedCmdValues;
             delete this._synchedMotor;
+            this.setChangedState();
+        }
+
+        clearSyncCmd() {
+            if (this._synchedMotor)
+                this.clearSpeedCmd();
         }
 
         setLarge(large: boolean) {
@@ -154,13 +161,19 @@ namespace pxsim {
                         const dstep = isTimeCommand
                             ? pxsim.U.now() - this.speedCmdTime
                             : this.tacho - this.speedCmdTacho;
-                        if (dstep < step1) // rampup
+                        if (step1 && dstep < step1) { // rampup
                             this.speed = speed * dstep / step1;
+                            // ensure non-zero speed
+                            this.speed = Math.max(MIN_RAMP_SPEED, Math.ceil(Math.abs(this.speed))) * Math.sign(speed);
+                        }
                         else if (dstep < step1 + step2) // run
                             this.speed = speed;
-                        else if (dstep < step1 + step2 + step3)
-                            this.speed = speed * (step1 + step2 + step3 - dstep) / (step1 + step2 + step3);
-                        else {
+                        else if (step2 && dstep < step1 + step2 + step3) {
+                            this.speed = speed * (step1 + step2 + step3 - dstep)
+                                / (step1 + step2 + step3) + 5;
+                            // ensure non-zero speed
+                            this.speed = Math.max(MIN_RAMP_SPEED, Math.ceil(Math.abs(this.speed))) * Math.sign(speed);
+                        } else {
                             if (brake) this.speed = 0;
                             if (!isTimeCommand) {
                                 // we need to patch the actual position of the motor when
@@ -179,11 +192,13 @@ namespace pxsim {
                     case DAL.opOutputStepSync:
                     case DAL.opOutputTimeSync: {
                         const otherMotor = this._synchedMotor;
-                        if (otherMotor.port < this.port) // handled in other motor code
-                            break;
-
                         const speed = this.speedCmdValues[0];
                         const turnRatio = this.speedCmdValues[1];
+                        // if turnratio is negative, right motor at power level
+                        // right motor -> this.port > otherMotor.port
+                        if (Math.sign(this.port - otherMotor.port)
+                            == Math.sign(turnRatio))
+                            break; // handled in other motor code
                         const stepsOrTime = this.speedCmdValues[2];
                         const brake = this.speedCmdValues[3];
                         const dstep = this.speedCmd == DAL.opOutputTimeSync
@@ -199,12 +214,7 @@ namespace pxsim {
 
                         // turn ratio is a bit weird to interpret
                         // see https://communities.theiet.org/blogs/698/1706
-                        if (turnRatio < 0) {
-                            otherMotor.speed = speed;
-                            this.speed *= (100 + turnRatio) / 100;
-                        } else {
-                            otherMotor.speed = this.speed * (100 - turnRatio) / 100;
-                        }
+                        otherMotor.speed = this.speed * (100 - Math.abs(turnRatio)) / 100;
 
                         // clamp
                         this.speed = Math.max(-100, Math.min(100, this.speed >> 0));
@@ -224,11 +234,10 @@ namespace pxsim {
                 this.angle = this.manualReferenceAngle + this.manualAngle;
                 this.setChangedState();
             }
-            this.speed = Math.round(this.speed); // integer only
-
+            // don't round speed
             // compute delta angle
-            const rotations = this.getSpeed() / 100 * this.rotationsPerMilliSecond * elapsed;
-            const deltaAngle = Math.round(rotations * 360);
+            const rotations = this.speed / 100 * this.rotationsPerMilliSecond * elapsed;
+            const deltaAngle = rotations * 360;
             if (deltaAngle) {
                 this.angle += deltaAngle;
                 this.tacho += Math.abs(deltaAngle);

sim/state/output.ts

@@ -80,6 +80,12 @@ namespace pxsim {
                             const brake = pxsim.BufferMethods.getNumber(buf, BufferMethods.NumberFormat.Int8LE, 12);
 
                             const motors = ev3board().getMotor(port);
+                            // cancel any other sync command
+                            for(const motor of ev3board().getMotors().filter(motor => motors.indexOf(motor) < 0)) {
+                                motor.clearSyncCmd()
+                            }
+
+                            // apply commands to all motors
                             for (const motor of motors) {
                                 const otherMotor = motors.filter(m => m.port != motor.port)[0];
                                 motor.setSyncCmd(

targetconfig.json

@@ -9,7 +9,11 @@
     },
     "galleries": {
         "Getting Started": "getting-started",
-        "Tutorials": "tutorials",
+        "Brick Tutorials": "tutorials/brick",
+        "Motor Tutorials": "tutorials/motors",
+        "Touch Sensor Tutorials": "tutorials/touch-sensor",
+        "Color Sensor Tutorials": "tutorials/color-sensor",
+        "Infrared Sensor Tutorials": "tutorials/infrared-sensor",
         "Design Engineering": "design-engineering",
         "Coding": "coding",
         "Maker": "maker",