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hrm - Draw "empty" BPM display when first HRM-raw arrives

master
Martin Boonk 2022-06-20 21:56:17 +02:00
parent c9800fc85d
commit 5fca2fbaa3
1 changed files with 8 additions and 6 deletions
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14
apps/hrm/heartrate.js
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@ -4,7 +4,7 @@ if (process.env.HWVERSION == 1) {
} }
Bangle.setHRMPower(1); Bangle.setHRMPower(1);
var hrmInfo, hrmOffset = 0; var hrmInfo = {}, hrmOffset = 0;
var hrmInterval; var hrmInterval;
var btm = g.getHeight()-1; var btm = g.getHeight()-1;
var lastHrmPt = []; // last xy coords we draw a line to var lastHrmPt = []; // last xy coords we draw a line to
@ -29,22 +29,25 @@ function onHRM(h) {
hrmInterval = setInterval(readHRM,41); hrmInterval = setInterval(readHRM,41);
}, 40); }, 40);
} }
updateHrm();
}
Bangle.on('HRM', onHRM);
function updateHrm(){
var px = g.getWidth()/2; var px = g.getWidth()/2;
g.setFontAlign(0,-1); g.setFontAlign(0,-1);
g.clearRect(0,24,g.getWidth(),80); g.clearRect(0,24,g.getWidth(),80);
g.setFont("6x8").drawString("Confidence "+hrmInfo.confidence+"%", px, 70); g.setFont("6x8").drawString("Confidence "+(hrmInfo.confidence || "--")+"%", px, 70);
updateScale(); updateScale();
g.setFontAlign(0,0); g.setFontAlign(0,0);
var str = hrmInfo.bpm; var str = hrmInfo.bpm || "--";
g.setFontVector(40).setColor(hrmInfo.confidence > 50 ? g.theme.fg : "#888").drawString(str,px,45); g.setFontVector(40).setColor(hrmInfo.confidence > 50 ? g.theme.fg : "#888").drawString(str,px,45);
px += g.stringWidth(str)/2; px += g.stringWidth(str)/2;
g.setFont("6x8").setColor(g.theme.fg); g.setFont("6x8").setColor(g.theme.fg);
g.drawString("BPM",px+15,45); g.drawString("BPM",px+15,45);
} }
Bangle.on('HRM', onHRM);
function updateScale(){ function updateScale(){
g.setFontAlign(-1,-1); g.setFontAlign(-1,-1);
@ -81,6 +84,7 @@ Bangle.on('HRM-raw', function(v) {
if (counter !==undefined) { if (counter !==undefined) {
counter = undefined; counter = undefined;
g.clearRect(0,24,g.getWidth(),g.getHeight()); g.clearRect(0,24,g.getWidth(),g.getHeight());
updateHrm();
} }
}); });
@ -90,8 +94,6 @@ function countDown() {
if (counter) { if (counter) {
g.drawString(counter--,g.getWidth()/2,g.getHeight()/2, true); g.drawString(counter--,g.getWidth()/2,g.getHeight()/2, true);
setTimeout(countDown, 1000); setTimeout(countDown, 1000);
} else {
g.clearRect(0,24,g.getWidth(),g.getHeight());
} }
} }
g.clear(); g.clear();