Added app for reading from bluetooth plan moisture sensors

apps.json

@@ -1615,6 +1615,18 @@
       {"name":"switch-off.img","url":"switch-off.js","evaluate":true}
     ]
   },
+  { "id": "miplant",
+    "name": "Xiaomi Plant Sensor",
+    "shortName":"Mi Plant",
+    "icon": "app.png",
+    "version":"0.01",
+    "description": "Reads and displays data from Xiaomi bluetooth plant moisture sensors",
+    "tags": "xiaomi,mi,plant,ble,bluetooth",
+    "storage": [
+      {"name":"miplant.app.js","url":"app.js"},
+      {"name":"miplant.img","url":"app-icon.js","evaluate":true}
+    ]
+  },
   {
     "id": "simpletimer",
     "name": "Timer",

apps/miplant/ChangeLog

@@ -0,0 +1 @@
+0.01: New App!

apps/miplant/app-icon.js

@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEwxH+4AA/AH4A/AAPQ64AQ44ZKBYwvc6/QF9wwFF9XXF73I4IAH44/F54vdCpYQESAYvm5Avm44ADA4Yvmc44v/F/4v/F/4v/F/4v+zmjv4ABF9GrwoACrYvn2WGFwgABSh4AV0QtDFwYvmFwlhF9wuDF9QuEF82jFw4vmMIQuFv4vuEDOi0d/WgV/0YNGBIN/LrSvCABAkECAI4GAChKBF5QABCIYEDADKpCsIvJLQQ0EGoShJMBwACSJYvEB5GiMCYxJF4LuCLorTLF6IxGQILuBMYgAGC4QwP0YwHYwQbCF4K1CL4lhCohfQMBBiCFQQvEAgIsFAATxWSQyPDAYYSIHgRgZE4IsBF4QGCCI6NRMBboFXgTTIFyYwIPYWcGAb2CCI2iF6qwBD4aqERYQABIQ+cFywALLwgAqXoYvrSAQROA=="))

apps/miplant/app.js

@@ -0,0 +1,74 @@
+
+function getImgHum() {
+  return require("heatshrink").decompress(atob("jUoxH+AEtlsoYYDS4ZYDAYaVDLAYFDSQYHDSIZYDBIaPDLAYLDRoZYDBoaLDLAYPDRIZYDCIaHDLAYTDQoZYDCoaDDOQYXAA+JxIYX1utDSwYBAAIzYGiwZUTgpODQpzPGGgY3OdI4aRDIIaMDJIYCDIztDGRwaJP5oaWDAwaRDBAbOC5YcKB5I="));
+}
+function getImgTemp() {
+  return require("heatshrink").decompress(atob("iUqxH+AA2sAAQLHCBASMCAoSLCPOBAAQRfI/5Hn3YACy4ACCL4ADCL5H/I/AQHCRAQJCQwQLCQgQNCQYRQCB4A/ADaPjYqTpSCRYQGCZALFA"));
+}
+function getImgFert() {
+  return require("heatshrink").decompress(atob("kklxH+AC+FwtbDbAfFAAVbEbgiGEbYiHEbQiEsIjiEQYjeEQiPdEQrXdEdKnTAAJsMD6QlJFZAAIGAIkPEaIkCrdhEaR9MT4gkLFAyjMYoojNUZ4jFEoxrGEBCJDEZSWEEZdhCwpsKJQiJFAgYgGEQwjLD4QjFCRD+KCAylGQ4gjXVhAiPEhAKDJIwiQEowIEEQo2GERgAKEYwAcEUQkDEL9VAAgHFETgAIDJwePEZwdTE5ggdMJt6AAQEEqwRMABYQDAAwkBF5AkKEBQAPEUR6ESAQicJIX+A=="));
+}
+
+var deviceInfo = {};
+
+function parseDevice(device) {
+  var d = new DataView(device.serviceData["fe95"]);
+  var frame = d.getUint16(0,true);
+  var offset = 5;
+  if (frame&16) offset+=6; // mac address
+  if (frame&32) offset+=1; // capabilitities
+  if (frame&64) { // event
+    var l = d.getUint8(offset+2);
+    var code = d.getUint16(offset,true);
+    if (!deviceInfo[device.id]) deviceInfo[device.id]={id:device.id};
+    event = deviceInfo[device.id];
+    switch (code) {
+      case 0x1004: event.temperature = d.getInt16(offset+3,true)/10; break;
+      case 0x1006: event.humidity = d.getInt16(offset+3)/10; break;
+      case 0x100D:
+        event.temperature = d.getInt16(offset+3,true)/10;
+        event.humidity = d.getInt16(offset+5)/10; break;
+      case 0x1008: event.moisture = d.getUint8(offset+3); break;
+      case 0x1009: event.fertility = d.getUint16(offset+3,true)/10; break;
+      // case 0x1007: break; // 3 bytes? got 84,0,0 or 68,0,0
+      default: event.code = code;
+               event.raw = new Uint8Array(d.buffer, offset+3, l);
+               break;
+    }
+    //print(event);
+    show(event);
+  }
+}
+
+/*
+eg. {
+  "id": "c4:7c:8d:6a:ac:79 public",
+  "temperature": 16.6, "code": 4103,
+  "raw": new Uint8Array([246, 0, 0]),
+  "moisture": 46, "fertility": 20.8 }
+*/
+function show(event) {
+  g.reset().setFont("6x8");
+  var y = 45 + 50*Object.keys(deviceInfo).indexOf(event.id);
+
+  g.drawString(event.id.substr(0,17),0,y);
+  g.drawImage(getImgHum(),0,y+15);
+  g.setFont("6x8",2);
+  var t = (event.moisture===undefined) ? "?" : event.moisture;
+  g.drawString((t+"   ").substr(0,3),35,y+25,true);
+  g.drawImage(getImgFert(),80,y+15);
+  t = Math.round(event.fertility) || "?";
+  g.drawString((t+"   ").substr(0,3), 120, y+25, true);
+  g.drawImage(getImgTemp(),160,y+15);
+  t = Math.round(event.temperature) || "?";
+  g.drawString((t+"   ").substr(0,3), 180, y+25, true);
+  g.flip();
+}
+
+g.clear();
+g.setFont("6x8",2).setFontAlign(0,-1).drawString("Scanning...",120,24);
+
+Bangle.loadWidgets()
+Bangle.drawWidgets()
+
+NRF.setScan(parseDevice, { filters: [{serviceData:{"fe95":{}}}], timeout: 2000 });