mirror of https://github.com/espruino/BangleApps
61 lines
1.3 KiB
JavaScript
61 lines
1.3 KiB
JavaScript
Bangle.setLCDPower(1);
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Bangle.setLCDTimeout(0);
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Bangle.setHRMPower(1);
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var hrmInfo, hrmOffset = 0;
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var hrmInterval;
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function onHRM(h) {
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// this is the first time we're called
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if (counter!==undefined) {
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counter = undefined;
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g.clear();
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}
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hrmInfo = h;
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hrmOffset = 0;
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if (hrmInterval) clearInterval(hrmInterval);
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hrmInterval = undefined;
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setTimeout(function() {
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hrmInterval = setInterval(readHRM,41);
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}, 40);
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var px = g.getWidth()/2;
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g.setFontAlign(0,0);
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g.clearRect(0,24,239,90);
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g.setFont("6x8").drawString("Confidence "+hrmInfo.confidence+"%", px, 75);
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var str = hrmInfo.bpm;
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g.setFontVector(40).drawString(str,px,45);
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px += g.stringWidth(str)/2;
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g.setFont("6x8");
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g.drawString("BPM",px+15,45);
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}
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Bangle.on('HRM', onHRM);
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// It takes 5 secs for us to get the first HRM event
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var counter = 5;
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function countDown() {
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E.showMessage("Please wait...\n"+counter--);
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if (counter) setTimeout(countDown, 1000);
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}
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countDown();
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var wasHigh = 0, wasLow = 0;
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var lastHigh = getTime();
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var hrmList = [];
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var hrmInfo;
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function readHRM() {
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if (!hrmInfo) return;
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if (hrmOffset==0) {
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g.clearRect(0,100,239,239);
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g.moveTo(-100,0);
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}
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for (var i=0;i<2;i++) {
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var a = hrmInfo.raw[hrmOffset];
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hrmOffset++;
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y = E.clip(170 - (a*2),100,230);
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g.setColor(1,1,1);
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g.lineTo(hrmOffset, y);
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}
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}
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