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hrm 0.03: Fix timing issues, and use 1/2 scale to keep graph on screen

pull/682/head
Gordon Williams 2021-03-04 11:10:17 +00:00
parent 86d43c3fbb
commit a7efdb9724
3 changed files with 7 additions and 6 deletions
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2
apps.json
View File

@ -584,7 +584,7 @@
{ "id": "hrm",
"name": "Heart Rate Monitor",
"icon": "heartrate.png",
"version":"0.02",
"version":"0.03",
"description": "Measure your heart rate and see live sensor data",
"tags": "health",
"storage": [

1
apps/hrm/ChangeLog
View File

@ -1,2 +1,3 @@
0.01: New App!
0.02: Use HRM data and calculations from Bangle.js (don't access hardware directly)
0.03: Fix timing issues, and use 1/2 scale to keep graph on screen

10
apps/hrm/heartrate.js
View File

@ -12,7 +12,10 @@ function onHRM(h) {
hrmInfo = h;
hrmOffset = 0;
if (hrmInterval) clearInterval(hrmInterval);
hrmInterval = setInterval(readHRM,40);
hrmInterval = undefined;
setTimeout(function() {
hrmInterval = setInterval(readHRM,41);
}, 40);
var px = g.getWidth()/2;
g.setFontAlign(0,0);
@ -35,7 +38,6 @@ function countDown() {
countDown();
var min=0,max=0;
var wasHigh = 0, wasLow = 0;
var lastHigh = getTime();
var hrmList = [];
@ -51,9 +53,7 @@ function readHRM() {
for (var i=0;i<2;i++) {
var a = hrmInfo.raw[hrmOffset];
hrmOffset++;
min=Math.min(min*0.97+a*0.03,a);
max=Math.max(max*0.97+a*0.03,a);
y = E.clip(170 - (a*4),100,230);
y = E.clip(170 - (a*2),100,230);
g.setColor(1,1,1);
g.lineTo(hrmOffset, y);
}