mirror of https://github.com/espruino/BangleApps
71 lines
2.3 KiB
JavaScript
71 lines
2.3 KiB
JavaScript
// Ensure we have the bleAdvert global (to play well with other stuff)
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if (!Bangle.bleAdvert) Bangle.bleAdvert = {};
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Bangle.btHomeData = [];
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{
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require("BTHome").packetId = 0|(Math.random()*256); // random packet id so new packets show up
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let settings = require("Storage").readJSON("bthome.json",1)||{};
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if (settings.showBattery)
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Bangle.btHomeData.push({
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type : "battery",
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v : E.getBattery()
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});
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// If buttons defined, add events for them
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if (settings.buttons instanceof Array) {
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let n = settings.buttons.reduce((n,b)=>b.n>n?b.n:n,-1);
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for (var i=0;i<=n;i++)
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Bangle.btHomeData.push({type:"button_event",v:"none",n:i});
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}
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}
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/* Global function to allow advertising BTHome adverts
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extras = array of extra data, see require("BTHome").getAdvertisement - can add {n:0/1/2} for different instances
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options = {
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event : an event - advertise fast, and when connected
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}
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*/
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Bangle.btHome = function(extras, options) {
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options = options||{};
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// clear any existing events
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Bangle.btHomeData.forEach(d => {if (d.type=="button_event") d.v="none";});
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// update with extras
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if (extras) {
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extras.forEach(extra => {
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var n = Bangle.btHomeData.find(b=>b.type==extra.type && b.n==extra.n);
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if (n) Object.assign(n, extra);
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else Bangle.btHomeData.push(extra);
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});
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}
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var bat = Bangle.btHomeData.find(b=>b.type=="battery");
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if (bat) bat.v = E.getBattery();
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var advert = require("BTHome").getAdvertisement(Bangle.btHomeData)[0xFCD2];
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// Add to the list of available advertising
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if(Array.isArray(Bangle.bleAdvert)){
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var found = false;
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for(var ad in Bangle.bleAdvert){
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if(ad[0xFCD2]){
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ad[0xFCD2] = advert;
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found = true;
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break;
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}
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}
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if(!found)
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Bangle.bleAdvert.push({ 0xFCD2: advert });
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} else {
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Bangle.bleAdvert[0xFCD2] = advert;
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}
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var advOptions = {};
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var updateTimeout = 10*60*1000; // update every 10 minutes
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if (options.event) { // if it's an event...
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advOptions.interval = 50;
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advOptions.whenConnected = true;
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updateTimeout = 30000; // slow down in 30 seconds
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}
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NRF.setAdvertising(Bangle.bleAdvert, advOptions);
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if (Bangle.btHomeTimeout) clearTimeout(Bangle.btHomeTimeout);
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Bangle.btHomeTimeout = setTimeout(function() {
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delete Bangle.btHomeTimeout;
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// update
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Bangle.btHome();
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}, updateTimeout);
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};
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