0.2.87

libs/microbit/led.ts

@@ -4,18 +4,33 @@
 //% color=3 weight=35
 namespace led {
 
+    // what's the current high value
+    let barGraphHigh = 0;
+    // when was the current high value recorded
+    let barGraphHighLast = 0;
+        
     /**
-     * Displays a vertical bar graph based on the ``value`` and ``high`` value.
+     * Displays a vertical bar graph based on the `value` and `high` value.
+     * If `high` is 0, the chart gets adjusted automatically.
      * @param value current value to plot
-     * @param high maximum value, eg: 1023, 255
+     * @param high maximum value. If 0, maximum value adjusted automatically, eg: 0
      */
     //% 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
-    export function plotBarGraph(value: number, high: number): void {
-        
+    export function plotBarGraph(value: number, high: number): void {        
+        let now = input.runningTime();
         serial.writeString(value.toString() + "\r\n");
+        value = Math.abs(value);
         
-        let v = Math.abs((value * 15) / high);
+        if (high != 0) barGraphHigh = high;
+        else if (value > barGraphHigh || now - barGraphHighLast > 5000) {
+            barGraphHigh = value;
+            barGraphHighLast = now;
+        }
+        
+        barGraphHigh = Math.max(barGraphHigh, 16);
+                    
+        let v = (value * 15) / barGraphHigh;
         let k = 0;
         for(let y = 4; y >= 0; --y) {
             for (let x = 0; x < 3; ++x) {

libs/microbit/serial.ts

@@ -7,7 +7,7 @@ namespace serial {
      * Prints a line of text to the serial
      * @param value to send over serial
      */
-    //% help=/serial/write-line
+    //% help=serial/write-line
     //% blockId=serial_writeline block="serial|write %text"
     export function writeLine(text: string): void {
         writeString(text);
@@ -27,7 +27,7 @@ namespace serial {
      * @param value to write
      */
     //% weight=80
-    //% help=/serial/write-value
+    //% help=serial/write-value
     //% blockId=serial_writevalue block="serial|write %name|= %value"
     export function writeValue(name: string, value: number): void {
         writeString(name);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pxt-microbit",
-  "version": "0.2.81",
+  "version": "0.2.87",
   "description": "BBC micro:bit target for PXT",
   "keywords": [
     "JavaScript",
@@ -29,6 +29,6 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.2.88"
+    "pxt-core": "0.2.95"
   }
 }

pxtarget.json

@@ -56,6 +56,9 @@
         "hasHex": true,
         "deployDrives": "^MICROBIT"
     },
+    "runtime": {
+      "mathBlocks": true
+    },
     "simulator": {
         "autoRun": true
     },

sim/simsvg.ts

@@ -219,7 +219,7 @@ namespace pxsim.micro_bit {
                     rx:5, ry:5,
                     fill:`url(#${gid})`
                 });
-                this.thermometerText = Svg.child(this.g, "text", { class:'sim-text', x:60, y:130}) as SVGTextElement;
+                this.thermometerText = Svg.child(this.g, "text", { class:'sim-text', x:58, y:130}) as SVGTextElement;
                 this.updateTheme();
                 
                 let pt = this.element.createSVGPoint();