Add a bluetooth debug script that list detected devices

package.json

@@ -20,7 +20,8 @@
     "lint": "eslint src/**.ts --max-warnings=0",
     "watch": "npm run build && npm link && nodemon",
     "build": "rimraf ./dist && tsc",
-    "prepublishOnly": "npm run lint && npm run build"
+    "prepublishOnly": "npm run lint && npm run build",
+    "debugBluetooth": "node scripts/debug_bluetooth.js"
   },
   "keywords": [
     "homebridge-plugin"

scripts/debug_bluetooth.js

@@ -0,0 +1,55 @@
+
+const noble = require('@abandonware/noble');
+
+noble.on('stateChange', async (state) => {
+  console.log(state);
+  if (state === 'poweredOn') {
+    console.log('Starting to scan for 30s...');
+    setTimeout(async () => {
+      console.log('Stop scanning');
+      await noble.stopScanningAsync();
+      process.exit(0);
+    }, 30_000);
+    await noble.startScanningAsync([], false);
+  }
+});
+
+
+const decoder = new TextDecoder('utf-8');
+noble.on('discover', async (peripheral) => {
+  console.log(`Found periphal ${peripheral.id} at address ${peripheral.address}`);
+
+  if (peripheral.state === 'disconnected') {
+    await peripheral.connectAsync();
+  }
+
+  try {
+    const { characteristics } = await peripheral.discoverSomeServicesAndCharacteristicsAsync(['180a'], ['2a29', '2a24']);
+
+    if (characteristics.length === 0) {
+      return;
+    }
+
+    const device = {};
+
+
+    await Promise.all(characteristics.map(async c => {
+      const d = await c.readAsync();
+      const value = decoder.decode(d);
+      switch (c.uuid) {
+        case '2a29':
+          device.manufacturer = value;
+          break;
+        case '2a24':
+          device.model = value;
+      }
+    }));
+
+    console.log(`Connected to periphal ${peripheral.id} at address ${peripheral.address} (${device.manufacturer} ${device.model}, ${peripheral.advertisement.localName})`);
+
+  } catch(e) {
+
+  }
+
+  await peripheral.disconnectAsync();
+});