0.3.51

adds "parts" annotations

.vscode/settings.json

@@ -1,5 +1,20 @@
 // Place your settings in this file to overwrite default and user settings.
 {
+    "file.autoSave": "afterDelay",   
+    "files.watcherExclude": {
+        "**/.git/objects/**": true,
+        "**/built/**": true,
+        "**/node_modules/**": true,
+        "**/yotta_modules/**": true,
+        "**/yotta_targets": true,
+        "**/pxt_modules/**": true
+    },    
+    "search.exclude": {
+        "**/node_modules": true,
+        "**/yotta_modules/**": true,
+        "**/yotta_targets": true,
+        "**/pxt_modules/**": true
+    },    
     "tslint.enable": true,
     "tslint.rulesDirectory": "node_modules/tslint-microsoft-contrib"
 }

cmds/cmds.ts

@@ -9,16 +9,16 @@ let execAsync: (cmd: string, options?: { cwd?: string }) => Promise<Buffer> = Pr
 let readDirAsync = Promise.promisify(fs.readdir)
 
 
-export function deployCoreAsync(res: ts.pxt.CompileResult) {
+export function deployCoreAsync(res: pxtc.CompileResult) {
     return getBitDrivesAsync()
         .then(drives => {
             if (drives.length == 0) {
                 console.log("cannot find any drives to deploy to")
             } else {
-                console.log(`copy ${ts.pxt.BINARY_HEX} to ` + drives.join(", "))
+                console.log(`copy ${pxtc.BINARY_HEX} to ` + drives.join(", "))
             }
             return Promise.map(drives, d =>
-                writeFileAsync(d + ts.pxt.BINARY_HEX, res.outfiles[ts.pxt.BINARY_HEX])
+                writeFileAsync(d + pxtc.BINARY_HEX, res.outfiles[pxtc.BINARY_HEX])
                     .then(() => {
                         console.log("wrote hex file to " + d)
                     }))

docs/packages.md

@@ -23,7 +23,7 @@ To remove a package, click on the garbage button in the file list next to the pa
 
 ## Publishing packages
 
-Packages can be published from the pxt command line. We are still sorting out the details.
+Packages can be published from the pxt command line. Check out [the docs](https://www.pxt.io/packages).
 
 ## Localizing packages
 

includes/docs-meta.html

@@ -1,21 +1,28 @@
-    <meta name="twitter:card" content="summary" />
-    <meta name="twitter:site" content="@codethemicrobit" />
-    <meta name="twitter:title" content="@name@" />
-    <meta name="twitter:description" content="@description@" />
-    <meta name="twitter:image" content="@cardLogo@" />
+<meta name="twitter:card" content="summary" />
+<meta name="twitter:site" content="@codethemicrobit" />
+<meta name="twitter:title" content="@name@" />
+<meta name="twitter:description" content="@description@" />
+<meta name="twitter:image" content="@cardLogo@" />
 
-    <meta property="og:title" content="@name@" />
-    <meta property="og:site_name" content="code the micro:bit" />
-    <meta property="og:description" content="@description@" />
-    <meta property="og:image" content="@cardLogo@" />
-    <!--
+<meta property="og:title" content="@name@" />
+<meta property="og:site_name" content="code the micro:bit" />
+<meta property="og:description" content="@description@" />
+<meta property="og:image" content="@cardLogo@" />
+<!--
     <meta property="og:type" content="website" />
     <meta property="fb:app_id" content="" />
     -->
 
-    <link rel="apple-touch-icon" href="@appLogo@">
-    <link rel="icon" type="image/png" href="@appLogo@">
-    <link rel="mask-icon" href="https://az851932.vo.msecnd.net/pub/zwxazere/safari-pinned-tab.svg" color="#000000">
-    <link rel="shortcut icon" href="@appLogo@">
-    <meta name="theme-color" content="@accentColor@">
-    
+<link rel="apple-touch-icon" href="@appLogo@">
+<link rel="icon" type="image/png" href="@appLogo@">
+<link rel="mask-icon" href="https://az851932.vo.msecnd.net/pub/zwxazere/safari-pinned-tab.svg" color="#000000">
+<link rel="shortcut icon" href="@appLogo@">
+<meta name="theme-color" content="@accentColor@">
+
+<style>
+    #root .avatar .avatar-image {
+        background-image: url(https://az851932.vo.msecnd.net/pub/jovrytni/microbit.simplified.svg);
+        background-size: contain;
+        background-repeat: no-repeat;
+    }
+</style>

libs/microbit-bluetooth/bluetooth.cpp

@@ -32,6 +32,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-io-pin-service
     //% blockId=bluetooth_start_io_pin_service block="bluetooth io pin service" blockGap=8
+    //% parts="bluetooth"
     void startIOPinService() {
         new MicroBitIOPinService(*uBit.ble, uBit.io);
     }
@@ -41,6 +42,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-led-service
     //% blockId=bluetooth_start_led_service block="bluetooth led service" blockGap=8
+    //% parts="bluetooth"
     void startLEDService() {
         new MicroBitLEDService(*uBit.ble, uBit.display);
     }
@@ -50,6 +52,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-temperature-service
     //% blockId=bluetooth_start_temperature_service block="bluetooth temperature service" blockGap=8
+    //% parts="bluetooth"
     void startTemperatureService() {    
         new MicroBitTemperatureService(*uBit.ble, uBit.thermometer);        
     }
@@ -59,6 +62,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-magnetometer-service
     //% blockId=bluetooth_start_magnetometer_service block="bluetooth magnetometer service" blockGap=8
+    //% parts="bluetooth"
     void startMagnetometerService() {    
         new MicroBitMagnetometerService(*uBit.ble, uBit.compass); 
     }
@@ -68,6 +72,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-accelerometer-service
     //% blockId=bluetooth_start_accelerometer_service block="bluetooth accelerometer service" blockGap=8
+    //% parts="bluetooth"
     void startAccelerometerService() {
         new MicroBitAccelerometerService(*uBit.ble, uBit.accelerometer);        
     }
@@ -77,6 +82,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-button-service
     //% blockId=bluetooth_start_button_service block="bluetooth button service" blockGap=8
+    //% parts="bluetooth"
     void startButtonService() {
         new MicroBitButtonService(*uBit.ble);      
     }
@@ -86,6 +92,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/start-uart-service
     //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8
+    //% parts="bluetooth"
     void startUartService() {
         if (uart) return;
         // 61 octet buffer size is 3 x (MTU - 3) + 1
@@ -99,6 +106,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/uart-write
     //% blockId=bluetooth_uart_write block="bluetooth uart write %data" blockGap=8
+    //% parts="bluetooth"
     void uartWrite(StringData *data) {
         startUartService();
     	uart->send(ManagedString(data));
@@ -109,6 +117,7 @@ namespace bluetooth {
     */
     //% help=bluetooth/uart-read
     //% blockId=bluetooth_uart_read block="bluetooth uart read %del=bluetooth_uart_delimiter_conv" blockGap=8
+    //% parts="bluetooth"
     StringData* uartRead(StringData *del) {
         startUartService();
         return uart->readUntil(ManagedString(del)).leakData();
@@ -119,6 +128,7 @@ namespace bluetooth {
     */
     //% blockId="bluetooth_uart_delimiter_conv" block="%del"
     //% weight=1
+    //% parts="bluetooth"
     StringData* delimiters(Delimiters del) {  
         ManagedString c("\n\n,$:.#"[max(0, min(6, (int)del))]);
         return c.leakData();
@@ -129,6 +139,7 @@ namespace bluetooth {
      */
     //% help=bluetooth/on-bluetooth-connected weight=20
     //% blockId=bluetooth_on_connected block="on bluetooth connected" blockGap=8
+    //% parts="bluetooth"
     void onBluetoothConnected(Action body) {
         registerWithDal(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_CONNECTED, body);
     }    
@@ -139,6 +150,7 @@ namespace bluetooth {
      */
     //% help=bluetooth/on-bluetooth-disconnected weight=19
     //% blockId=bluetooth_on_disconnected block="on bluetooth disconnected"
+    //% parts="bluetooth"
     void onBluetoothDisconnected(Action body) {
         registerWithDal(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_DISCONNECTED, body);
     }    

libs/microbit-bluetooth/shims.d.ts

@@ -11,70 +11,80 @@ declare namespace bluetooth {
      *  Starts the Bluetooth IO pin service.
      */
     //% help=bluetooth/start-io-pin-service
-    //% blockId=bluetooth_start_io_pin_service block="bluetooth io pin service" blockGap=8 shim=bluetooth::startIOPinService
+    //% blockId=bluetooth_start_io_pin_service block="bluetooth io pin service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startIOPinService
     function startIOPinService(): void;
 
     /**
      *  Starts the Bluetooth LED service
      */
     //% help=bluetooth/start-led-service
-    //% blockId=bluetooth_start_led_service block="bluetooth led service" blockGap=8 shim=bluetooth::startLEDService
+    //% blockId=bluetooth_start_led_service block="bluetooth led service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startLEDService
     function startLEDService(): void;
 
     /**
      *  Starts the Bluetooth temperature service
      */
     //% help=bluetooth/start-temperature-service
-    //% blockId=bluetooth_start_temperature_service block="bluetooth temperature service" blockGap=8 shim=bluetooth::startTemperatureService
+    //% blockId=bluetooth_start_temperature_service block="bluetooth temperature service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startTemperatureService
     function startTemperatureService(): void;
 
     /**
      *  Starts the Bluetooth magnetometer service
      */
     //% help=bluetooth/start-magnetometer-service
-    //% blockId=bluetooth_start_magnetometer_service block="bluetooth magnetometer service" blockGap=8 shim=bluetooth::startMagnetometerService
+    //% blockId=bluetooth_start_magnetometer_service block="bluetooth magnetometer service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startMagnetometerService
     function startMagnetometerService(): void;
 
     /**
      *  Starts the Bluetooth accelerometer service
      */
     //% help=bluetooth/start-accelerometer-service
-    //% blockId=bluetooth_start_accelerometer_service block="bluetooth accelerometer service" blockGap=8 shim=bluetooth::startAccelerometerService
+    //% blockId=bluetooth_start_accelerometer_service block="bluetooth accelerometer service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startAccelerometerService
     function startAccelerometerService(): void;
 
     /**
      *  Starts the Bluetooth button service
      */
     //% help=bluetooth/start-button-service
-    //% blockId=bluetooth_start_button_service block="bluetooth button service" blockGap=8 shim=bluetooth::startButtonService
+    //% blockId=bluetooth_start_button_service block="bluetooth button service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startButtonService
     function startButtonService(): void;
 
     /**
      *  Starts the Bluetooth UART service
      */
     //% help=bluetooth/start-uart-service
-    //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8 shim=bluetooth::startUartService
+    //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::startUartService
     function startUartService(): void;
 
     /**
      *  Writes to the Bluetooth UART service buffer. From there the data is transmitted over Bluetooth to a connected device.
      */
     //% help=bluetooth/uart-write
-    //% blockId=bluetooth_uart_write block="bluetooth uart write %data" blockGap=8 shim=bluetooth::uartWrite
+    //% blockId=bluetooth_uart_write block="bluetooth uart write %data" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::uartWrite
     function uartWrite(data: string): void;
 
     /**
      *  Reads from the Bluetooth UART service buffer, returning its contents when the specified delimiter character is encountered.
      */
     //% help=bluetooth/uart-read
-    //% blockId=bluetooth_uart_read block="bluetooth uart read %del=bluetooth_uart_delimiter_conv" blockGap=8 shim=bluetooth::uartRead
+    //% blockId=bluetooth_uart_read block="bluetooth uart read %del=bluetooth_uart_delimiter_conv" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::uartRead
     function uartRead(del: string): string;
 
     /**
      * Returns the delimiter corresponding string
      */
     //% blockId="bluetooth_uart_delimiter_conv" block="%del"
-    //% weight=1 shim=bluetooth::delimiters
+    //% weight=1
+    //% parts="bluetooth" shim=bluetooth::delimiters
     function delimiters(del: Delimiters): string;
 
     /**
@@ -82,7 +92,8 @@ declare namespace bluetooth {
      * @param body Code to run when a Bluetooth connection is established
      */
     //% help=bluetooth/on-bluetooth-connected weight=20
-    //% blockId=bluetooth_on_connected block="on bluetooth connected" blockGap=8 shim=bluetooth::onBluetoothConnected
+    //% blockId=bluetooth_on_connected block="on bluetooth connected" blockGap=8
+    //% parts="bluetooth" shim=bluetooth::onBluetoothConnected
     function onBluetoothConnected(body: () => void): void;
 
     /**
@@ -90,7 +101,8 @@ declare namespace bluetooth {
      * @param body Code to run when a Bluetooth connection is lost
      */
     //% help=bluetooth/on-bluetooth-disconnected weight=19
-    //% blockId=bluetooth_on_disconnected block="on bluetooth disconnected" shim=bluetooth::onBluetoothDisconnected
+    //% blockId=bluetooth_on_disconnected block="on bluetooth disconnected"
+    //% parts="bluetooth" shim=bluetooth::onBluetoothDisconnected
     function onBluetoothDisconnected(body: () => void): void;
 }
 

libs/microbit/basic.cpp

@@ -15,6 +15,7 @@ namespace basic {
     //% weight=96
     //% blockId=device_show_number block="show|number %number" blockGap=8 icon="\uf1ec"
     //% async
+    //% parts="ledmatrix"
     void showNumber(int value, int interval = 150) { 
       if (interval < 0)
         return;
@@ -37,6 +38,7 @@ namespace basic {
     //% imageLiteral=1 async
     //% blockId=device_show_leds
     //% block="show leds" icon="\uf00a"
+    //% parts="ledmatrix"
     void showLeds(ImageLiteral leds, int interval = 400) {
       uBit.display.print(MicroBitImage(imageBytes(leds)), 0, 0, 0, interval);
     }
@@ -51,6 +53,7 @@ namespace basic {
     //% block="show|string %text" icon="\uf031" 
     //% async
     //% blockId=device_print_message
+    //% parts="ledmatrix"
     void showString(StringData *text, int interval = 150) {
       if (interval < 0)
         return;
@@ -71,6 +74,7 @@ namespace basic {
      */
     //% help=basic/clear-screen weight=79
     //% blockId=device_clear_display block="clear screen" icon="\uf12d"
+    //% parts="ledmatrix"
     void clearScreen() {
       uBit.display.image.clear();
     }
@@ -81,6 +85,7 @@ namespace basic {
      * @param interval time in milliseconds between each redraw
      */
     //% help=basic/show-animation imageLiteral=1 async
+    //% parts="ledmatrix"
     void showAnimation(ImageLiteral leds, int interval = 400) {
       uBit.display.animate(MicroBitImage(imageBytes(leds)), interval, 5, 0);
     }
@@ -90,6 +95,7 @@ namespace basic {
      * @param leds pattern of LEDs to turn on/off
      */
     //% help=basic/plot-leds weight=80
+    //% parts="ledmatrix"
     void plotLeds(ImageLiteral leds) {
       MicroBitImage i(imageBytes(leds));
       uBit.display.print(i, 0, 0, 0, 0);

libs/microbit/core.cpp

@@ -261,36 +261,6 @@ namespace pxtrt {
     r->unref();
   }
 
-  //%
-  uint32_t ldglb(int idx) {
-    check(0 <= idx && idx < numGlobals, ERR_OUT_OF_BOUNDS, 7);
-    return globals[idx];
-  }
-
-  //%
-  uint32_t ldglbRef(int idx) {
-    check(0 <= idx && idx < numGlobals, ERR_OUT_OF_BOUNDS, 7);
-    uint32_t tmp = globals[idx];
-    incr(tmp);
-    return tmp;
-  }
-
-  // note the idx comes last - it's more convenient that way in the emitter
-  //%
-  void stglb(uint32_t v, int idx)
-  {
-    check(0 <= idx && idx < numGlobals, ERR_OUT_OF_BOUNDS, 7);
-    globals[idx] = v;
-  }
-
-  //%
-  void stglbRef(uint32_t v, int idx)
-  {
-    check(0 <= idx && idx < numGlobals, ERR_OUT_OF_BOUNDS, 7);
-    decr(globals[idx]);
-    globals[idx] = v;
-  }
-
   // Store a captured local in a closure. It returns the action, so it can be chained.
   //%
   RefAction *stclo(RefAction *a, int idx, uint32_t v)
@@ -306,6 +276,34 @@ namespace pxtrt {
     microbit_panic(code);
   }
 
+  //%
+  int stringToBool(StringData *s) {
+    if (s == NULL) return 0;
+    if (s->len == 0) {
+      s->decr();
+      return 0;
+    }
+    s->decr();
+    return 1;
+  }
+
+  //%
+  StringData* emptyToNull(StringData *s) {
+    if (!s || s->len == 0)
+      return NULL;
+    return s;
+  }
+
+  //%
+  int ptrToBool(uint32_t p) {
+    if (p) {
+      decr(p);
+      return 1;
+    } else {
+      return 0;
+    }
+  }
+
   //
   // Debugger
   //

libs/microbit/game.ts

@@ -41,6 +41,7 @@ namespace game {
      */
     //% weight=60
     //% blockId=game_create_sprite block="create sprite at|x: %x|y: %y"
+    //% parts="ledmatrix"
     export function createSprite(x: number, y: number): LedSprite {
         init();
         let p = new LedSprite(x, y);
@@ -64,6 +65,7 @@ namespace game {
      */
     //% weight=10 help=game/add-score
     //% blockId=game_add_score block="change score by|%points" blockGap=8
+    //% parts="ledmatrix"
     export function addScore(points: number): void {
         setScore(_score + points);
         control.inBackground(() => {
@@ -82,6 +84,7 @@ namespace game {
      */
     //% weight=9 help=game/start-countdown
     //% blockId=game_start_countdown block="start countdown|(ms) %duration" blockGap=8
+    //% parts="ledmatrix"
     export function startCountdown(ms: number): void {
         if (checkStart()) {
             basic.showAnimation(`1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0
@@ -104,6 +107,7 @@ namespace game {
      */
     //% weight=8 help=game/game-over
     //% blockId=game_game_over block="game over"
+    //% parts="ledmatrix"
     export function gameOver(): void {
         if (!_isGameOver) {
             _isGameOver = true;
@@ -194,6 +198,7 @@ namespace game {
      * @param life TODO
      */
     //% weight=10
+    //% parts="ledmatrix"
     export function removeLife(life: number): void {
         setLife(_life - life);
         control.inBackground(() => {
@@ -210,6 +215,7 @@ namespace game {
      * Increments the level and display a message.
      */
     //% weight=10
+    //% parts="ledmatrix"
     export function levelUp(): void {
         _level = _level + 1;
         basic.showString("LEVEL:", 150);
@@ -246,6 +252,7 @@ namespace game {
      * Displays the score on the screen.
      */
     //%  weight=60
+    //% parts="ledmatrix"
     export function showScore(): void {
         basic.showString(" SCORE ", 100);
         basic.showNumber(_score, 150);
@@ -303,6 +310,7 @@ namespace game {
          */
         //% weight=50
         //% blockId=game_move_sprite block="%sprite|move by %leds" blockGap=8
+        //% parts="ledmatrix"
         public move(leds: number): void {
             if (this._dir == 0) {
                 this._y = this._y - leds;
@@ -336,6 +344,7 @@ namespace game {
          * @param x TODO
          * @param y TODO
          */
+        //% parts="ledmatrix"
         public goTo(x: number, y: number): void {
             this._x = x;
             this._y = y;
@@ -350,6 +359,7 @@ namespace game {
          */
         //% weight=18
         //% blockId=game_sprite_bounce block="%sprite|if on edge, bounce"
+        //% parts="ledmatrix"
         public ifOnEdgeBounce(): void {
             if (this._dir == 0 && this._y == 0) {
                 this._dir = 180;
@@ -484,6 +494,7 @@ namespace game {
          * @param this TODO
          * @param degrees TODO
          */
+        //% parts="ledmatrix"
         public setDirection(degrees: number): void {
             this._dir = ((degrees / 45) % 8) * 45;
             if (this._dir <= -180) {
@@ -596,6 +607,7 @@ namespace game {
          * @param this TODO
          * @param brightness TODO
          */
+        //% parts="ledmatrix"
         public setBrightness(brightness: number): void {
             this._brightness = Math.clamp(0, 255, brightness);
             plot();
@@ -664,6 +676,7 @@ namespace game {
         }
 
         //% weight=-1
+        //% parts="ledmatrix"
         public _plot(now: number) {
             let ps = this
             if (ps._brightness > 0) {
@@ -701,6 +714,7 @@ namespace game {
     /**
      * Plots the current sprites on the screen
      */
+    //% parts="ledmatrix"
     function plot(): void {
         if (game.isGameOver()) {
             return;

libs/microbit/images.cpp

@@ -10,6 +10,7 @@ namespace images {
      */
     //% weight=75 help=images/create-image
     //% blockId=device_build_image block="create image"
+    //% parts="ledmatrix"
     Image createImage(ImageLiteral leds) {
         return MicroBitImage(imageBytes(leds)).clone().leakData();
     }
@@ -19,6 +20,7 @@ namespace images {
      */
     //% weight=74 help=images/create-big-image
     //% blockId=device_build_big_image block="create big image" imageLiteral=2
+    //% parts="ledmatrix"
     Image createBigImage(ImageLiteral leds) {
         return createImage(leds);
     }
@@ -29,6 +31,7 @@ namespace ImageMethods {
      * Plots the image at a given column to the screen
      */            
     //% help=images/plot-image
+    //% parts="ledmatrix"
     void plotImage(Image i, int xOffset = 0) {
       uBit.display.print(MicroBitImage(i), -xOffset, 0, 0, 0);
     }
@@ -39,6 +42,7 @@ namespace ImageMethods {
      */
     //% help=images/show-image weight=80 blockNamespace=images
     //% blockId=device_show_image_offset block="show image %sprite|at offset %offset" blockGap=8
+    //% parts="ledmatrix"
     void showImage(Image sprite, int xOffset) {
       uBit.display.print(MicroBitImage(sprite), -xOffset, 0, 0);
     }
@@ -48,6 +52,7 @@ namespace ImageMethods {
      * @param xOffset column index to start displaying the image
      */
     //% help=images/plot-frame weight=80
+    //% parts="ledmatrix"
     void plotFrame(Image i, int xOffset) {
       // TODO showImage() used in original implementation
       plotImage(i, xOffset * 5);
@@ -60,6 +65,7 @@ namespace ImageMethods {
      */
     //% help=images/show-image weight=79 async blockNamespace=images
     //% blockId=device_scroll_image block="scroll image %sprite|with offset %frameoffset|and interval (ms) %delay" blockGap=8
+    //% parts="ledmatrix"
     void scrollImage(Image id, int frameOffset, int interval) {
       MicroBitImage i(id);
       if (i.getWidth() <= 5)
@@ -73,6 +79,7 @@ namespace ImageMethods {
      * Sets all pixels off.
      */
     //% help=images/clear
+    //% parts="ledmatrix"
     void clear(Image i) {
       MicroBitImage(i).clear();
     }
@@ -81,6 +88,7 @@ namespace ImageMethods {
      * Sets a specific pixel brightness at a given position
      */
     //%
+    //% parts="ledmatrix"
     void setPixelBrightness(Image i, int x, int y, int value) {
       MicroBitImage(i).setPixelValue(x, y, value);
     }
@@ -90,6 +98,7 @@ namespace ImageMethods {
      * Gets the pixel brightness ([0..255]) at a given position
      */
     //%
+    //% parts="ledmatrix"
     int pixelBrightness(Image i, int x, int y) {
       int pix = MicroBitImage(i).getPixelValue(x, y);
       if (pix < 0) return 0;
@@ -120,6 +129,7 @@ namespace ImageMethods {
      * @param value TODO
      */
     //% help=images/set-pixel
+    //% parts="ledmatrix"
     void setPixel(Image i, int x, int y, bool value) {
         setPixelBrightness(i, x, y, value ? 255 : 0);
     }
@@ -130,6 +140,7 @@ namespace ImageMethods {
      * @param y TODO
      */
     //% help=images/pixel
+    //% parts="ledmatrix"
     bool pixel(Image i, int x, int y) {
         return pixelBrightness(i, x, y) > 0;
     }
@@ -140,6 +151,7 @@ namespace ImageMethods {
      * @param frame TODO
      */
     //% weight=70 help=images/show-frame
+    //% parts="ledmatrix"
     void showFrame(Image i, int frame) {
         showImage(i, frame * 5);
     }

libs/microbit/input.cpp

@@ -116,6 +116,7 @@ namespace input {
      */
     //% help=input/on-button-pressed weight=85 blockGap=8
     //% blockId=device_button_event block="on button|%NAME|pressed" icon="\uf192"
+    //% parts="buttonpair"
     void onButtonPressed(Button button, Action body) {
         registerWithDal((int)button, MICROBIT_BUTTON_EVT_CLICK, body);
     }
@@ -126,6 +127,7 @@ namespace input {
      */
     //% help=input/on-gesture weight=84 blockGap=8
     //% blockId=device_gesture_event block="on |%NAME" icon="\uf135"
+    //% parts="accelerometer"
     void onGesture(Gesture gesture, Action body) {
         if ((int)gesture == MICROBIT_ACCELEROMETER_EVT_3G && uBit.accelerometer.getRange() < 3)
             uBit.accelerometer.setRange(4);
@@ -134,7 +136,7 @@ namespace input {
         registerWithDal(MICROBIT_ID_GESTURE, (int)gesture, body);
     }
 
-    /**
+     /**
      * Do something when a pin is pressed.
      * @param name the pin that needs to be pressed
      * @param body the code to run when the pin is pressed
@@ -173,6 +175,7 @@ namespace input {
     //% block="button|%NAME|is pressed"
     //% blockId=device_get_button2
     //% icon="\uf192" blockGap=8
+    //% parts="buttonpair"
     bool buttonIsPressed(Button button) {
       if (button == Button::A)
         return uBit.buttonA.isPressed();
@@ -201,6 +204,7 @@ namespace input {
     //% help=input/compass-heading 
     //% weight=56 icon="\uf14e"
     //% blockId=device_heading block="compass heading (°)" blockGap=8
+    //% parts="compass"
     int compassHeading() {
         return uBit.compass.heading();
     }
@@ -212,6 +216,7 @@ namespace input {
     //% weight=55 icon="\uf06d"
     //% help=input/temperature
     //% blockId=device_temperature block="temperature (°C)" blockGap=8
+    //% parts="thermometer"
     int temperature() {
         return uBit.thermometer.getTemperature();
     }
@@ -229,6 +234,7 @@ namespace input {
      */
     //% help=input/acceleration weight=54 icon="\uf135"
     //% blockId=device_acceleration block="acceleration (mg)|%NAME" blockGap=8
+    //% parts="accelerometer"
     int acceleration(Dimension dimension) {
       switch (dimension) {
       case Dimension::X: return uBit.accelerometer.getX();
@@ -245,6 +251,7 @@ namespace input {
      */
     //% help=input/light-level weight=53
     //% blockId=device_get_light_level block="light level" blockGap=8 icon="\uf185"
+    //% parts="ledmatrix"
     int lightLevel() {
         return uBit.display.readLightLevel();
     }
@@ -255,6 +262,7 @@ namespace input {
      */
     //% help=input/rotation weight=52
     //% blockId=device_get_rotation block="rotation (°)|%NAME" blockGap=8 icon="\uf197"
+    //% parts="accelerometer"
     int rotation(Rotation kind) {
       switch (kind) {
       case Rotation::Pitch: return uBit.accelerometer.getPitch();
@@ -269,6 +277,7 @@ namespace input {
      */
     //% help=input/magnetic-force weight=51
     //% blockId=device_get_magnetic_force block="magnetic force (µT)|%NAME" blockGap=8 icon="\uf076"
+    //% parts="compass"
     int magneticForce(Dimension dimension) {
       if (!uBit.compass.isCalibrated())
         uBit.compass.calibrate();
@@ -304,6 +313,7 @@ namespace input {
     //% help=input/set-accelerometer-range
     //% blockId=device_set_accelerometer_range block="set accelerometer|range %range" icon="\uf135"
     //% weight=5
+    //% parts="accelerometer"
     void setAccelerometerRange(AcceleratorRange range) {
         uBit.accelerometer.setRange((int)range);
     }

libs/microbit/led.cpp

@@ -18,6 +18,7 @@ namespace led {
      */
     //% help=led/plot weight=78
     //% blockId=device_plot block="plot|x %x|y %y" icon="\uf205" blockGap=8
+    //% parts="ledmatrix"
     void plot(int x, int y) { 
       uBit.display.image.setPixelValue(x, y, 1);
     }
@@ -29,6 +30,7 @@ namespace led {
      */
     //% help=led/unplot weight=77
     //% blockId=device_unplot block="unplot|x %x|y %y" icon="\uf204" blockGap=8
+    //% parts="ledmatrix"
     void unplot(int x, int y) { 
       uBit.display.image.setPixelValue(x, y, 0);
     }
@@ -40,6 +42,7 @@ namespace led {
      */
     //% help=led/point weight=76
     //% blockId=device_point block="point|x %x|y %y" icon="\uf10c"
+    //% parts="ledmatrix"
     bool point(int x, int y) {
       int pix = uBit.display.image.getPixelValue(x, y);
       return pix > 0;
@@ -50,6 +53,7 @@ namespace led {
      */
     //% help=led/brightness weight=60
     //% blockId=device_get_brightness block="brightness" icon="\uf042" blockGap=8
+    //% parts="ledmatrix"
     int brightness() {
       return uBit.display.getBrightness();
     }
@@ -60,6 +64,7 @@ namespace led {
      */
     //% help=led/set-brightness weight=59
     //% blockId=device_set_brightness block="set brightness %value" icon="\uf042"
+    //% parts="ledmatrix"
     void setBrightness(int value) { 
        uBit.display.setBrightness(value);
     }
@@ -69,6 +74,7 @@ namespace led {
      */
     //% weight=50 help=led/stop-animation
     //% blockId=device_stop_animation block="stop animation" icon="\uf04d"
+    //% parts="ledmatrix"
     void stopAnimation() { 
        uBit.display.stopAnimation();
     }
@@ -78,6 +84,7 @@ namespace led {
      * @param mode TODO
      */
     //% weight=1 help=led/set-display-mode
+    //% parts="ledmatrix"
     void setDisplayMode(DisplayMode_ mode) { 
         uBit.display.setDisplayMode((DisplayMode)mode);
     }
@@ -86,6 +93,7 @@ namespace led {
      * Takes a screenshot of the LED screen and returns an image.
      */
     //% help=led/screenshot
+    //% parts="ledmatrix"
     Image screenshot() {
       return uBit.display.screenShot().leakData();
         /*

libs/microbit/led.ts

@@ -17,6 +17,7 @@
      */
     //% help=led/plot-bar-graph weight=20
     //% blockId=device_plot_bar_graph block="plot bar graph of %value |up to %high" icon="\uf080" blockExternalInputs=true
+    //% parts="ledmatrix"
     export function plotBarGraph(value: number, high: number): void {
         let now = input.runningTime();
         serial.writeString(value.toString() + "\r\n");
@@ -53,6 +54,7 @@
      */
     //% help=led/toggle weight=77
     //% blockId=device_led_toggle block="toggle|x %x|y %y" icon="\uf204" blockGap=8
+    //% parts="ledmatrix"
     export function toggle(x: number, y: number): void {
         if (led.point(x, y)) {
             led.unplot(x, y);
@@ -65,6 +67,7 @@
      * Turns all LEDS on
      */
     //% help=led/plot-all
+    //% parts="ledmatrix"
     export function plotAll(): void {
         for (let i = 0; i < 5; i++) {
             for (let j = 0; j < 5; j++) {
@@ -77,6 +80,7 @@
      * Inverts the current LED display
      */
     //% help=led/toggle-all
+    //% parts="ledmatrix"
     export function toggleAll(): void {
         for (let i = 0; i < 5; i++) {
             for (let j = 0; j < 5; j++) {
@@ -90,6 +94,7 @@
      * @param ms TODO
      */
     //% help=led/fade-in
+    //% parts="ledmatrix"
     export function fadeIn(ms: number = 700): void {
         if (ms < 20) {
             led.setBrightness(255);
@@ -112,6 +117,7 @@
      * @param ms TODO
      */
     //% help=led/fade-out
+    //% parts="ledmatrix"
     export function fadeOut(ms: number = 700): void {
         if (ms < 20) {
             led.setBrightness(0);

libs/microbit/shims.d.ts

@@ -11,14 +11,16 @@ declare namespace images {
      * Creates an image that fits on the LED screen.
      */
     //% weight=75 help=images/create-image
-    //% blockId=device_build_image block="create image" imageLiteral=1 shim=images::createImage
+    //% blockId=device_build_image block="create image"
+    //% parts="ledmatrix" imageLiteral=1 shim=images::createImage
     function createImage(leds: string): Image;
 
     /**
      * Creates an image with 2 frames.
      */
     //% weight=74 help=images/create-big-image
-    //% blockId=device_build_big_image block="create big image" imageLiteral=2 shim=images::createBigImage
+    //% blockId=device_build_big_image block="create big image" imageLiteral=2
+    //% parts="ledmatrix" shim=images::createBigImage
     function createBigImage(leds: string): Image;
 }
 
@@ -27,7 +29,8 @@ declare interface Image {
     /**
      * Plots the image at a given column to the screen
      */
-    //% help=images/plot-image xOffset.defl=0 shim=ImageMethods::plotImage
+    //% help=images/plot-image
+    //% parts="ledmatrix" xOffset.defl=0 shim=ImageMethods::plotImage
     plotImage(xOffset?: number): void;
 
     /**
@@ -35,14 +38,16 @@ declare interface Image {
      * @param xOffset column index to start displaying the image
      */
     //% help=images/show-image weight=80 blockNamespace=images
-    //% blockId=device_show_image_offset block="show image %sprite|at offset %offset" blockGap=8 shim=ImageMethods::showImage
+    //% blockId=device_show_image_offset block="show image %sprite|at offset %offset" blockGap=8
+    //% parts="ledmatrix" shim=ImageMethods::showImage
     showImage(xOffset: number): void;
 
     /**
      * Draws the ``index``-th frame of the image on the screen.
      * @param xOffset column index to start displaying the image
      */
-    //% help=images/plot-frame weight=80 shim=ImageMethods::plotFrame
+    //% help=images/plot-frame weight=80
+    //% parts="ledmatrix" shim=ImageMethods::plotFrame
     plotFrame(xOffset: number): void;
 
     /**
@@ -51,25 +56,29 @@ declare interface Image {
      * @param interval time between each animation step in milli seconds, eg: 200
      */
     //% help=images/show-image weight=79 async blockNamespace=images
-    //% blockId=device_scroll_image block="scroll image %sprite|with offset %frameoffset|and interval (ms) %delay" blockGap=8 shim=ImageMethods::scrollImage
+    //% blockId=device_scroll_image block="scroll image %sprite|with offset %frameoffset|and interval (ms) %delay" blockGap=8
+    //% parts="ledmatrix" shim=ImageMethods::scrollImage
     scrollImage(frameOffset: number, interval: number): void;
 
     /**
      * Sets all pixels off.
      */
-    //% help=images/clear shim=ImageMethods::clear
+    //% help=images/clear
+    //% parts="ledmatrix" shim=ImageMethods::clear
     clear(): void;
 
     /**
      * Sets a specific pixel brightness at a given position
      */
-    //% shim=ImageMethods::setPixelBrightness
+    //%
+    //% parts="ledmatrix" shim=ImageMethods::setPixelBrightness
     setPixelBrightness(x: number, y: number, value: number): void;
 
     /**
      * Gets the pixel brightness ([0..255]) at a given position
      */
-    //% shim=ImageMethods::pixelBrightness
+    //%
+    //% parts="ledmatrix" shim=ImageMethods::pixelBrightness
     pixelBrightness(x: number, y: number): number;
 
     /**
@@ -90,7 +99,8 @@ declare interface Image {
      * @param y TODO
      * @param value TODO
      */
-    //% help=images/set-pixel shim=ImageMethods::setPixel
+    //% help=images/set-pixel
+    //% parts="ledmatrix" shim=ImageMethods::setPixel
     setPixel(x: number, y: number, value: boolean): void;
 
     /**
@@ -98,14 +108,16 @@ declare interface Image {
      * @param x TODO
      * @param y TODO
      */
-    //% help=images/pixel shim=ImageMethods::pixel
+    //% help=images/pixel
+    //% parts="ledmatrix" shim=ImageMethods::pixel
     pixel(x: number, y: number): boolean;
 
     /**
      * Shows a particular frame of the image strip.
      * @param frame TODO
      */
-    //% weight=70 help=images/show-frame shim=ImageMethods::showFrame
+    //% weight=70 help=images/show-frame
+    //% parts="ledmatrix" shim=ImageMethods::showFrame
     showFrame(frame: number): void;
 }
 
@@ -123,7 +135,8 @@ declare namespace basic {
     //% help=basic/show-number
     //% weight=96
     //% blockId=device_show_number block="show|number %number" blockGap=8 icon="\uf1ec"
-    //% async interval.defl=150 shim=basic::showNumber
+    //% async
+    //% parts="ledmatrix" interval.defl=150 shim=basic::showNumber
     function showNumber(value: number, interval?: number): void;
 
     /**
@@ -135,7 +148,8 @@ declare namespace basic {
     //% weight=95 blockGap=8
     //% imageLiteral=1 async
     //% blockId=device_show_leds
-    //% block="show leds" icon="\uf00a" interval.defl=400 shim=basic::showLeds
+    //% block="show leds" icon="\uf00a"
+    //% parts="ledmatrix" interval.defl=400 shim=basic::showLeds
     function showLeds(leds: string, interval?: number): void;
 
     /**
@@ -147,14 +161,16 @@ declare namespace basic {
     //% weight=87 blockGap=8
     //% block="show|string %text" icon="\uf031" 
     //% async
-    //% blockId=device_print_message interval.defl=150 shim=basic::showString
+    //% blockId=device_print_message
+    //% parts="ledmatrix" interval.defl=150 shim=basic::showString
     function showString(text: string, interval?: number): void;
 
     /**
      * Turn off all LEDs
      */
     //% help=basic/clear-screen weight=79
-    //% blockId=device_clear_display block="clear screen" icon="\uf12d" shim=basic::clearScreen
+    //% blockId=device_clear_display block="clear screen" icon="\uf12d"
+    //% parts="ledmatrix" shim=basic::clearScreen
     function clearScreen(): void;
 
     /**
@@ -162,14 +178,16 @@ declare namespace basic {
      * @param leds pattern of LEDs to turn on/off
      * @param interval time in milliseconds between each redraw
      */
-    //% help=basic/show-animation imageLiteral=1 async interval.defl=400 shim=basic::showAnimation
+    //% help=basic/show-animation imageLiteral=1 async
+    //% parts="ledmatrix" interval.defl=400 shim=basic::showAnimation
     function showAnimation(leds: string, interval?: number): void;
 
     /**
      * Draws an image on the LED screen.
      * @param leds pattern of LEDs to turn on/off
      */
-    //% help=basic/plot-leds weight=80 imageLiteral=1 shim=basic::plotLeds
+    //% help=basic/plot-leds weight=80
+    //% parts="ledmatrix" imageLiteral=1 shim=basic::plotLeds
     function plotLeds(leds: string): void;
 
     /**
@@ -201,7 +219,8 @@ declare namespace input {
      * @param body TODO
      */
     //% help=input/on-button-pressed weight=85 blockGap=8
-    //% blockId=device_button_event block="on button|%NAME|pressed" icon="\uf192" shim=input::onButtonPressed
+    //% blockId=device_button_event block="on button|%NAME|pressed" icon="\uf192"
+    //% parts="buttonpair" shim=input::onButtonPressed
     function onButtonPressed(button: Button, body: () => void): void;
 
     /**
@@ -209,7 +228,8 @@ declare namespace input {
      * @param body TODO
      */
     //% help=input/on-gesture weight=84 blockGap=8
-    //% blockId=device_gesture_event block="on |%NAME" icon="\uf135" shim=input::onGesture
+    //% blockId=device_gesture_event block="on |%NAME" icon="\uf135"
+    //% parts="accelerometer" shim=input::onGesture
     function onGesture(gesture: Gesture, body: () => void): void;
 
     /**
@@ -236,7 +256,8 @@ declare namespace input {
     //% help=input/button-is-pressed weight=57
     //% block="button|%NAME|is pressed"
     //% blockId=device_get_button2
-    //% icon="\uf192" blockGap=8 shim=input::buttonIsPressed
+    //% icon="\uf192" blockGap=8
+    //% parts="buttonpair" shim=input::buttonIsPressed
     function buttonIsPressed(button: Button): boolean;
 
     /**
@@ -253,7 +274,8 @@ declare namespace input {
      */
     //% help=input/compass-heading 
     //% weight=56 icon="\uf14e"
-    //% blockId=device_heading block="compass heading (°)" blockGap=8 shim=input::compassHeading
+    //% blockId=device_heading block="compass heading (°)" blockGap=8
+    //% parts="compass" shim=input::compassHeading
     function compassHeading(): number;
 
     /**
@@ -261,7 +283,8 @@ declare namespace input {
      */
     //% weight=55 icon="\uf06d"
     //% help=input/temperature
-    //% blockId=device_temperature block="temperature (°C)" blockGap=8 shim=input::temperature
+    //% blockId=device_temperature block="temperature (°C)" blockGap=8
+    //% parts="thermometer" shim=input::temperature
     function temperature(): number;
 
     /**
@@ -269,14 +292,16 @@ declare namespace input {
      * @param dimension TODO
      */
     //% help=input/acceleration weight=54 icon="\uf135"
-    //% blockId=device_acceleration block="acceleration (mg)|%NAME" blockGap=8 shim=input::acceleration
+    //% blockId=device_acceleration block="acceleration (mg)|%NAME" blockGap=8
+    //% parts="accelerometer" shim=input::acceleration
     function acceleration(dimension: Dimension): number;
 
     /**
      * Reads the light level applied to the LED screen in a range from ``0`` (dark) to ``255`` bright.
      */
     //% help=input/light-level weight=53
-    //% blockId=device_get_light_level block="light level" blockGap=8 icon="\uf185" shim=input::lightLevel
+    //% blockId=device_get_light_level block="light level" blockGap=8 icon="\uf185"
+    //% parts="ledmatrix" shim=input::lightLevel
     function lightLevel(): number;
 
     /**
@@ -284,7 +309,8 @@ declare namespace input {
      * @param kind TODO
      */
     //% help=input/rotation weight=52
-    //% blockId=device_get_rotation block="rotation (°)|%NAME" blockGap=8 icon="\uf197" shim=input::rotation
+    //% blockId=device_get_rotation block="rotation (°)|%NAME" blockGap=8 icon="\uf197"
+    //% parts="accelerometer" shim=input::rotation
     function rotation(kind: Rotation): number;
 
     /**
@@ -292,7 +318,8 @@ declare namespace input {
      * @param dimension TODO
      */
     //% help=input/magnetic-force weight=51
-    //% blockId=device_get_magnetic_force block="magnetic force (µT)|%NAME" blockGap=8 icon="\uf076" shim=input::magneticForce
+    //% blockId=device_get_magnetic_force block="magnetic force (µT)|%NAME" blockGap=8 icon="\uf076"
+    //% parts="compass" shim=input::magneticForce
     function magneticForce(dimension: Dimension): number;
 
     /**
@@ -314,7 +341,8 @@ declare namespace input {
      */
     //% help=input/set-accelerometer-range
     //% blockId=device_set_accelerometer_range block="set accelerometer|range %range" icon="\uf135"
-    //% weight=5 shim=input::setAccelerometerRange
+    //% weight=5
+    //% parts="accelerometer" shim=input::setAccelerometerRange
     function setAccelerometerRange(range: AcceleratorRange): void;
 }
 
@@ -400,7 +428,8 @@ declare namespace led {
      * @param y TODO
      */
     //% help=led/plot weight=78
-    //% blockId=device_plot block="plot|x %x|y %y" icon="\uf205" blockGap=8 shim=led::plot
+    //% blockId=device_plot block="plot|x %x|y %y" icon="\uf205" blockGap=8
+    //% parts="ledmatrix" shim=led::plot
     function plot(x: number, y: number): void;
 
     /**
@@ -409,7 +438,8 @@ declare namespace led {
      * @param y TODO
      */
     //% help=led/unplot weight=77
-    //% blockId=device_unplot block="unplot|x %x|y %y" icon="\uf204" blockGap=8 shim=led::unplot
+    //% blockId=device_unplot block="unplot|x %x|y %y" icon="\uf204" blockGap=8
+    //% parts="ledmatrix" shim=led::unplot
     function unplot(x: number, y: number): void;
 
     /**
@@ -418,14 +448,16 @@ declare namespace led {
      * @param y TODO
      */
     //% help=led/point weight=76
-    //% blockId=device_point block="point|x %x|y %y" icon="\uf10c" shim=led::point
+    //% blockId=device_point block="point|x %x|y %y" icon="\uf10c"
+    //% parts="ledmatrix" shim=led::point
     function point(x: number, y: number): boolean;
 
     /**
      * Get the screen brightness from 0 (off) to 255 (full bright).
      */
     //% help=led/brightness weight=60
-    //% blockId=device_get_brightness block="brightness" icon="\uf042" blockGap=8 shim=led::brightness
+    //% blockId=device_get_brightness block="brightness" icon="\uf042" blockGap=8
+    //% parts="ledmatrix" shim=led::brightness
     function brightness(): number;
 
     /**
@@ -433,27 +465,31 @@ declare namespace led {
      * @param value the brightness value, eg:255, 127, 0
      */
     //% help=led/set-brightness weight=59
-    //% blockId=device_set_brightness block="set brightness %value" icon="\uf042" shim=led::setBrightness
+    //% blockId=device_set_brightness block="set brightness %value" icon="\uf042"
+    //% parts="ledmatrix" shim=led::setBrightness
     function setBrightness(value: number): void;
 
     /**
      * Cancels the current animation and clears other pending animations.
      */
     //% weight=50 help=led/stop-animation
-    //% blockId=device_stop_animation block="stop animation" icon="\uf04d" shim=led::stopAnimation
+    //% blockId=device_stop_animation block="stop animation" icon="\uf04d"
+    //% parts="ledmatrix" shim=led::stopAnimation
     function stopAnimation(): void;
 
     /**
      * Sets the display mode between black and white and greyscale for rendering LEDs.
      * @param mode TODO
      */
-    //% weight=1 help=led/set-display-mode shim=led::setDisplayMode
+    //% weight=1 help=led/set-display-mode
+    //% parts="ledmatrix" shim=led::setDisplayMode
     function setDisplayMode(mode: DisplayMode): void;
 
     /**
      * Takes a screenshot of the LED screen and returns an image.
      */
-    //% help=led/screenshot shim=led::screenshot
+    //% help=led/screenshot
+    //% parts="ledmatrix" shim=led::screenshot
     function screenshot(): Image;
 }
 declare namespace pins {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pxt-microbit",
-  "version": "0.3.43",
+  "version": "0.3.51",
   "description": "micro:bit target for PXT",
   "keywords": [
     "JavaScript",
@@ -29,6 +29,6 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.3.47"
+    "pxt-core": "0.3.56"
   }
 }

pxtarget.json

@@ -31,12 +31,14 @@
             "description": "",
             "files": [
                 "main.blocks",
-                "main.ts"
+                "main.ts",
+                "README.md"
             ]
         },
         "files": {
             "main.blocks": "<xml xmlns=\"http://www.w3.org/1999/xhtml\">\n<block type=\"device_forever\">\n<statement name=\"HANDLER\">\n<block type=\"device_show_leds\">\n<field name=\"LED00\">FALSE</field>\n<field name=\"LED10\">FALSE</field>\n<field name=\"LED20\">FALSE</field>\n<field name=\"LED30\">FALSE</field>\n<field name=\"LED40\">FALSE</field>\n<field name=\"LED01\">FALSE</field>\n<field name=\"LED11\">TRUE</field>\n<field name=\"LED21\">FALSE</field>\n<field name=\"LED31\">TRUE</field>\n<field name=\"LED41\">FALSE</field>\n<field name=\"LED02\">FALSE</field>\n<field name=\"LED12\">FALSE</field>\n<field name=\"LED22\">FALSE</field>\n<field name=\"LED32\">FALSE</field>\n<field name=\"LED42\">FALSE</field>\n<field name=\"LED03\">TRUE</field>\n<field name=\"LED13\">FALSE</field>\n<field name=\"LED23\">FALSE</field>\n<field name=\"LED33\">FALSE</field>\n<field name=\"LED43\">TRUE</field>\n<field name=\"LED04\">FALSE</field>\n<field name=\"LED14\">TRUE</field>\n<field name=\"LED24\">TRUE</field>\n<field name=\"LED34\">TRUE</field>\n<field name=\"LED44\">FALSE</field>\n<next>\n<block type=\"device_show_leds\">\n<field name=\"LED00\">FALSE</field>\n<field name=\"LED10\">FALSE</field>\n<field name=\"LED20\">FALSE</field>\n<field name=\"LED30\">FALSE</field>\n<field name=\"LED40\">FALSE</field>\n<field name=\"LED01\">FALSE</field>\n<field name=\"LED11\">FALSE</field>\n<field name=\"LED21\">FALSE</field>\n<field name=\"LED31\">FALSE</field>\n<field name=\"LED41\">FALSE</field>\n<field name=\"LED02\">FALSE</field>\n<field name=\"LED12\">FALSE</field>\n<field name=\"LED22\">FALSE</field>\n<field name=\"LED32\">FALSE</field>\n<field name=\"LED42\">FALSE</field>\n<field name=\"LED03\">FALSE</field>\n<field name=\"LED13\">FALSE</field>\n<field name=\"LED23\">FALSE</field>\n<field name=\"LED33\">FALSE</field>\n<field name=\"LED43\">FALSE</field>\n<field name=\"LED04\">FALSE</field>\n<field name=\"LED14\">FALSE</field>\n<field name=\"LED24\">FALSE</field>\n<field name=\"LED34\">FALSE</field>\n<field name=\"LED44\">FALSE</field>\n</block>\n</next>\n</block>\n</statement>\n</block>\n</xml>",
-            "main.ts": "basic.forever(() => {\r\n    basic.showLeds(`\r\n        . # . # .\r\n        # . # . #\r\n        # . . . #\r\n        . # . # .\r\n        . . # . .\r\n        `)\r\n    basic.showLeds(`\r\n        . . . . .\r\n        . . . . .\r\n        . . . . .\r\n        . . . . .\r\n        . . . . .\r\n        `)\r\n})\r\n"
+            "main.ts": "basic.forever(() => {\r\n    basic.showLeds(`\r\n        . # . # .\r\n        # . # . #\r\n        # . . . #\r\n        . # . # .\r\n        . . # . .\r\n        `)\r\n    basic.showLeds(`\r\n        . . . . .\r\n        . . . . .\r\n        . . . . .\r\n        . . . . .\r\n        . . . . .\r\n        `)\r\n})\r\n",
+            "README.md": ""
         }
     },
     "tsprj": {
@@ -49,11 +51,13 @@
             },
             "description": "",
             "files": [
-                "main.ts"
+                "main.ts",
+                "README.md"
             ]
         },
         "files": {
-            "main.ts": "basic.showLeds(`\r\n    . . . . .\r\n    . # . # .\r\n    . . . . .\r\n    # . . . #\r\n    . # # # .\r\n    `);"
+            "main.ts": "basic.showLeds(`\r\n    . . . . .\r\n    . # . # .\r\n    . . . . .\r\n    # . . . #\r\n    . # # # .\r\n    `);",
+            "README.md": ""
         }
     },
     "compile": {

sim/state.ts

@@ -470,7 +470,7 @@ namespace pxsim {
         radio: RadioBus;
 
         // display
-        image = createImage(5);
+        image = createInternalImage(5);
         brigthness = 255;
         displayMode = DisplayMode.bw;
         font: Image = createFont();
@@ -608,14 +608,19 @@ namespace pxsim {
         }
     }
 
-    export class Image {
+    export class Image extends RefObject {
         public static height: number = 5;
         public width: number;
         public data: number[];
         constructor(width: number, data: number[]) {
+            super()
             this.width = width;
             this.data = data;
         }
+
+        public print() {
+            console.log(`Image id:${this.id} refs:${this.refcnt} size:${this.width}x${Image.height}`)
+        }
         public get(x: number, y: number): number {
             if (x < 0 || x >= this.width || y < 0 || y >= 5) return 0;
             return this.data[y * this.width + x];
@@ -650,6 +655,12 @@ namespace pxsim {
         }
     }
 
+    export function createInternalImage(width: number): Image {
+        let img = createImage(width)
+        pxsim.noLeakTracking(img)
+        return img
+    }
+
     export function createImage(width: number): Image {
         return new Image(width, new Array(width * 5));
     }
@@ -661,7 +672,7 @@ namespace pxsim {
     export function createImageFromString(text: string): Image {
         let font = board().font;
         let w = font.width;
-        let sprite = createImage(6 * text.length - 1);
+        let sprite = createInternalImage(6 * text.length - 1);
         let k = 0;
         for (let i = 0; i < text.length; i++) {
             let charCode = text.charCodeAt(i);
@@ -685,7 +696,7 @@ namespace pxsim {
 
         let nb = data.length;
         let n = nb / 5;
-        let font = createImage(nb);
+        let font = createInternalImage(nb);
         for (let c = 0; c < n; c++) {
             for (let row = 0; row < 5; row++) {
                 let char = data[c * 5 + row];

tests/base/tsconfig.json

@@ -0,0 +1,8 @@
+{
+    "compilerOptions": {
+        "target": "es5",
+        "noImplicitAny": true,
+        "outDir": "built",
+        "rootDir": "."
+    }
+}