Fix Bosch BLE protocol: correct UUIDs, 2-byte data IDs, new dashboard fields

webapp/js/bleService.js

@@ -1,11 +1,16 @@
 /**
  * BLE Service — Web Bluetooth connection to Bosch Smart System
+ *
+ * Connects via the correct Bosch eaa2 service UUID,
+ * subscribes to notifications on char 0011,
+ * and passes decoded data to the app.
  */
 
 const BLEService = (() => {
     let device = null;
     let server = null;
     let characteristic = null;
+    let writeCharacteristic = null;
     let onDataCallback = null;
     let onStatusCallback = null;
 
@@ -27,9 +32,10 @@ const BLEService = (() => {
         updateStatus('scanning');
 
         try {
+            // Request device — use namePrefix filters + optionalServices
+            // (some Bosch bikes don't advertise the service UUID directly)
             device = await navigator.bluetooth.requestDevice({
                 filters: [
-                    { services: [BoschProtocol.SERVICE_UUID] },
                     { namePrefix: 'smart system' },
                     { namePrefix: 'Bosch' },
                     { namePrefix: 'BRC' }
@@ -44,9 +50,19 @@ const BLEService = (() => {
 
             updateStatus('discovering');
             const service = await server.getPrimaryService(BoschProtocol.SERVICE_UUID);
+
+            // Get notify characteristic (0011)
             characteristic = await service.getCharacteristic(BoschProtocol.CHAR_UUID);
 
-            // Subscribe to notifications
+            // Try to get write characteristic (0012) for potential init commands
+            try {
+                writeCharacteristic = await service.getCharacteristic(BoschProtocol.WRITE_UUID);
+                console.log('Write characteristic (0012) available');
+            } catch (e) {
+                console.log('Write characteristic not available:', e.message);
+            }
+
+            // Subscribe to notifications IMMEDIATELY
             await characteristic.startNotifications();
             characteristic.addEventListener('characteristicvaluechanged', onCharacteristicChanged);
 
@@ -71,6 +87,7 @@ const BLEService = (() => {
             characteristic.removeEventListener('characteristicvaluechanged', onCharacteristicChanged);
             characteristic = null;
         }
+        writeCharacteristic = null;
         if (device && device.gatt.connected) {
             device.gatt.disconnect();
         }
@@ -84,6 +101,14 @@ const BLEService = (() => {
      */
     function onCharacteristicChanged(event) {
         const dataView = event.target.value;
+
+        // Log raw bytes for debugging
+        const raw = [];
+        for (let i = 0; i < dataView.byteLength; i++) {
+            raw.push(dataView.getUint8(i).toString(16).toUpperCase().padStart(2, '0'));
+        }
+        console.log('BLE notification:', raw.join('-'), `(${dataView.byteLength}B)`);
+
         const parsed = BoschProtocol.parseNotification(dataView);
         if (onDataCallback) {
             onDataCallback(parsed);
@@ -96,6 +121,7 @@ const BLEService = (() => {
     function onDisconnected() {
         console.warn('BLE device disconnected');
         characteristic = null;
+        writeCharacteristic = null;
         server = null;
         updateStatus('disconnected');
     }