hasensors: add HRM sensor

Posts updates at most every 10 minutes, doesn't toggle the sensor.

apps/hasensors/ChangeLog

@@ -1,3 +1,4 @@
 0.01: New app!
 0.02: Add sensor icons
       Customize code directly, remove config file
+0.03: Add HRM sensor

apps/hasensors/README.md

@@ -21,4 +21,5 @@ You need to fill out these fields:
 
 Currently creates these sensors:
 * `<sensor id>_battery_level`: Your watch battery level as percentage
-* `<sensor id>_battery_state`: `charging` or `discharging`
+* `<sensor id>_battery_state`: `charging` or `discharging`
+* `<sensor id>_hrm`: Heart rate (only if measured: this app doesn't enable/disable the sensor)

apps/hasensors/boot.js

@@ -3,4 +3,5 @@
     Bangle.on("charging", sb);
     NRF.on("connect", () => setTimeout(sb, 2000));
     setInterval(sb, 10 * 60 * 1000);
-})();
+    Bangle.on('HRM', h=>require("hasensors").sendHRM(h));
+})();

apps/hasensors/lib.js

@@ -14,7 +14,7 @@ function post(sensor, data) {
 
 exports.sendBattery = function () {
     if (!NRF.getSecurityStatus().connected) return;
-    const b = E.getBattery(), 
+    const b = E.getBattery(),
         c = Bangle.isCharging();
     let i = "mdi:battery";
     if (c) i += "-charging";
@@ -40,4 +40,24 @@ exports.sendBattery = function () {
             icon: i,
         }
     });
-}
+};
+
+let hrm_last = 0;
+const HRM_INTERVAL = 10*60*1000;
+exports.sendHRM = function (hrm) {
+    if (!NRF.getSecurityStatus().connected) return;
+    const now = (new Date).getTime();
+    if (hrm_last > now-HRM_INTERVAL) return;
+    post("hrm", {
+        state: hrm.bpm,
+            attributes: {
+            confidence: hrm.confidence,
+            raw: hrm.raw,
+            friendly_name: "{name} Heart Rate",
+            icon: "mdi:heart",
+            unit_of_measurement: "bpm",
+            state_class: "measurement",
+        }
+    });
+    hrm_last = now;
+};

apps/hasensors/metadata.json

@@ -2,7 +2,7 @@
   "id": "hasensors",
   "name": "Home Assistant Sensors",
   "shortName": "HA sensors",
-  "version": "0.02",
+  "version": "0.03",
   "description": "Send sensor values to Home Assistant using Android Integration/Gadgetbridge",
   "icon": "ha.png",
   "type": "bootloader",