kitchen: Added basic heart rate monitor watch face

apps.json

@@ -3085,7 +3085,7 @@
 { "id": "kitchen",
   "name": "Kitchen Combo",
   "icon": "kitchen.png",
-  "version":"0.08",
+  "version":"0.09",
   "description": "Combination of the Stepo, Walkersclock, Arrow and Waypointer apps into a multiclock format. 'Everything but the kitchen sink'. Requires firmware v2.08.167 or later",
   "tags": "tool,outdoors,gps",
   "type":"clock",
@@ -3096,11 +3096,14 @@
     {"name":"stepo.kit.js","url":"stepo.kit.js"},
     {"name":"gps.kit.js","url":"gps.kit.js"},
     {"name":"digi.kit.js","url":"digi.kit.js"},
+    {"name":"heart.kit.js","url":"heart.kit.js"},
     {"name":"swatch.kit.js","url":"swatch.kit.js"}, 
     {"name":"compass.kit.js","url":"compass.kit.js"},
-    {"name":"waypoints.json","url":"waypoints.json","evaluate":false},
     {"name":"kitchen.img","url":"kitchen.icon.js","evaluate":true}
   ]
+  "data": [
+      {"name":"waypoints.json","url":"waypoints.json"}
+  ]
 },
 { "id": "qmsched",
   "name": "Quiet Mode Schedule",

apps/kitchen/ChangeLog

@@ -6,3 +6,4 @@
 0.06: Reduced memory footprint of compass, used direct screen access rather than arrayBuffer
 0.07: Added error codes if dependancies are missing
 0.08: Improved error handling for missing firmware features, added template app.kit.js
+0.09: Added heart rate monitor app

apps/kitchen/compass.kit.js

@@ -16,7 +16,7 @@
       //console.log(o);
     }
 
-    function init(gps,sw) {
+    function init(gps,sw, hrm) {
       showMem("compass init() START");
       gpsObject = gps;
       intervalRefSec = undefined;

apps/kitchen/digi.kit.js

@@ -16,7 +16,7 @@
     const Y_ACTIVITY = 116;
     const Y_MODELINE = 200;
     
-    function init(gps,sw) {
+    function init(gps,sw,hrm) {
       showMem("digi init 1");
       days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday","Friday", "Saturday"];
       prevInfo = "";

apps/kitchen/gps.kit.js

@@ -20,7 +20,7 @@
       //console.log(o);
     }
 
-    function init(gps, sw) {
+    function init(gps, sw, hrm) {
       log_debug("gps init");
       //log_debug(gps);
       gpsObject = gps;

apps/kitchen/heart.kit.js

@@ -0,0 +1,116 @@
+(() => {
+  function getFace(){
+    const Y_TIME = 30;
+    const Y_ACTIVITY = 116;
+    let prevTime;
+    let prevBpm;
+    let toggle = 1;
+    let redrawHrmPower = true;
+    let intervalRefSec;
+    let img;
+    let hrmObject;
+
+    function log_debug(o) {
+      //console.log(o);
+    }
+
+    function init(gps, sw, hrm) {
+      img = require("heatshrink").decompress(atob("mEwwRC/ABf/+ADBh//BQgGB//AgYDBCAQWCA4QPCDAYSC//8n4EC4AiEAAo1EBZIeDAAn8BZoKHJAYL7L64LLTa6/DAAi/CKhDjGBZBIGIwQ8IHQQ8IHQYwHBQgwFFwgwGFwgwGFwowFBQwwDFwwwEFwwwEFw4wDBRAkBERAkCERIA/AAYA="));
+      prevTime = "-";
+      prevBpm = "-";
+      toggle = 1;
+      redrawHrmPower = true;
+      hrmObject = hrm;
+      intervalRefSec;
+      g.clear();
+    }
+
+    function freeResources() {
+      prevTime = undefined;
+      img = undefined;
+    }
+    
+    function startTimer() {
+      draw();
+      intervalRefSec = setInterval(draw, 1000);
+    }
+    
+    function stopTimer() {
+      if (intervalRefSec) { intervalRefSec = clearInterval(intervalRefSec); }
+    }
+
+    function onButtonShort(btn) {}
+
+    function onButtonLong(btn) {
+      log_debug("toggleHRM");
+      if (btn !== 1) return;
+      if (!Bangle.isHRMOn) return; // old firmware
+      hrmObject.toggleHRMPower();
+      prevBpm = '-';
+      toggle = 1;  // ensure we draw the heart first
+      redrawHrmPower = true;
+    }
+
+    function draw() {
+      let d = new Date();
+      let da = d.toString().split(" ");
+      let time = da[4].substr(0,5);
+
+      if (time !== prevTime) {
+        prevTime = time;
+        g.setColor(0);
+        g.fillRect(0, Y_TIME, 239, Y_ACTIVITY -1);
+        g.setColor(1,1,1);
+        g.setFont("Vector",80);
+        g.setFontAlign(0,-1);
+        g.drawString(time, 120, Y_TIME);
+      }
+
+      let bpm = hrmObject.getBpm();
+
+      if (!Bangle.isHRMOn()) {
+        if (!redrawHrmPower) return;
+        redrawHrmPower = false;
+        g.setColor(0);
+        g.drawImage(img, 12, 132, {scale:2});
+        g.fillRect(120,120,239,239);
+        g.setColor(255,0,0);
+        //g.setColor(0xFFC0); // yellow
+        g.drawImage(img, 12, 132, {scale:2});
+
+        g.setFont("Vector",40);
+        g.setFontAlign(0,0);
+        g.setColor(1,1,1);
+        g.drawString("OFF", 180, 180);
+        return;
+      }
+
+      // draw the heart
+      if (++toggle % 2 === 0) {
+        g.setColor(0);
+        g.fillRect(12, 132, 108, 228);
+      } else {
+        g.setColor(255,0,0);
+        //g.setColor(0xFFC0); // yellow
+        g.drawImage(img, 12, 132, {scale:2});
+      }
+
+      // draw the bpm
+      if (bpm !== prevBpm) {
+        prevBpm = bpm;
+        g.setColor(0);
+        g.fillRect(120, 120, 239, 239);
+        g.setColor(1,1,1);
+        //g.setColor(0xFFC0); // yellow
+        g.setFont("Vector",52);
+        g.setFontAlign(0,0);
+        g.drawString(bpm, 180, 180);
+      }
+    }
+
+    return {init:init, freeResources:freeResources, startTimer:startTimer, stopTimer:stopTimer,
+            onButtonShort:onButtonShort, onButtonLong:onButtonLong};
+  }
+
+  return getFace;
+})();

apps/kitchen/kitchen.app.js

@@ -26,7 +26,7 @@ function nextFace(){
   
   g.clear();
   g.reset();
-  face.init(gpsObj, swObj);
+  face.init(gpsObj, swObj, hrmObj);
   startdraw();
 }
 
@@ -651,6 +651,64 @@ function stopwatchDraw() {
 }
 
 
+/*****************************************************************************
+
+Heart Rate Monitor
+
+******************************************************************************/
+
+function HRM() {
+  this.bpm = 0;
+  this.confidence = 0;
+}
+  
+HRM.prototype.log_debug = function(o) {
+  //console.log(o);
+}
+
+HRM.prototype.toggleHRMPower = function() {
+  this.log_debug("HRM.toggleHRMPower()");
+  if (!Bangle.isHRMOn) return; // old firmware
+
+  if (!Bangle.isHRMOn()) {
+    this.log_debug("HRM.toggleHRMPower(powerOn)");
+    Bangle.removeListener('HRM', onHRM);
+    Bangle.setHRMPower(1);
+    Bangle.on('HRM', onHRM);
+  } else {
+    this.log_debug("HRM.toggleHRMPower(powerOff)");
+    Bangle.removeListener('HRM', onHRM);
+    Bangle.setHRMPower(0);
+  }
+
+  // poke the hrt widget indicator to change
+  if (WIDGETS.widhrt !== undefined) {
+    WIDGETS.widhrt.draw();
+  }
+}
+
+HRM.prototype.getBpm = function() {
+  return this.bpm;
+}
+
+HRM.prototype.getConfidence = function() {
+  return this.confidence;
+}
+
+HRM.prototype.onHRM = function(hrm) {
+  this.bpm = hrm.bpm;
+  this.confidence = hrm.confidence;
+  this.log_debug("onHRM:(bpm)" + this.bpm);
+  this.log_debug("onHRM:(conf) " + this.confidence);
+}
+
+let hrmObj = new HRM();
+
+function onHRM(hrm) {
+  hrmObj.onHRM(hrm);
+}
+
+
 /*****************************************************************************
 
 Start App
@@ -659,6 +717,6 @@ Start App
 
 g.clear();
 Bangle.loadWidgets();
-face.init(gpsObj,swObj);
+face.init(gpsObj,swObj, hrmObj);
 startdraw();
 setButtons();

apps/kitchen/stepo.kit.js

@@ -5,7 +5,7 @@
     var buf;
     var intervalRefSec;
 
-    function init(g,sw) {
+    function init(g,sw,hrm) {
       showMem("stepo init 1");
       pal4color = new Uint16Array([0x0000,0xFFFF,0x7BEF,0xAFE5],0,2);   // b,w,grey,greenyellow
       pal4red = new Uint16Array([0x0000,0xFFFF,0xF800,0xAFE5],0,2);   // b,w,red,greenyellow

apps/kitchen/swatch.kit.js

@@ -2,7 +2,7 @@
   function getFace(){
     let swObject = undefined;
 
-    function init(gps, sw) {
+    function init(gps, sw, hrm) {
       swObject = sw;
       g.clear();
     }