feat: compass v2 protocol

BasedHardware · May 9, 2024 · 942c4b2 · 942c4b2
1 parent 760ce60
commit 942c4b2
Showing 1 changed file with 20 additions and 2 deletions.
diff --git a/sources/modules/protocol.ts b/sources/modules/protocol.ts
@@ -58,21 +58,39 @@ async function resolveSuperProtocol(device: BTDevice): Promise<ProtocolDefinitio
 
 async function resolveCompasProtocol(device: BTDevice): Promise<ProtocolDefinition | null> {
 
+    /**
+     * Firmware V1 reports:
+     * 
+     * Service:4fafc201-1fb5-459e-8fcc-c5c9c331914b
+     * - Characteristic:00002bed-0000-1000-8000-00805f9b34fb
+     * - canRead:true
+     * - canWrite:false
+     * - canNotify:true
+     * - Characteristic:9f83442c-7da2-49ca-94e3-b06201a58508
+     * - canRead:true
+     * - canWrite:false
+     * - canNotify:true
+     * - Characteristic:beb5483e-36e1-4688-b7f5-ea07361b26a8
+     * - canRead:false
+     * - canWrite:false
+     * - canNotify:true
+     */
+
     // Search for service
     let service = device.services.find((v) => v.id === '4fafc201-1fb5-459e-8fcc-c5c9c331914b')
     if (!service) {
         return null;
     }
 
     // Search for characteristic
-    let audioCharacteristic = service.characteristics.find((v) => v.id === 'beb5483e-36e1-4688-b7f5-ea07361b26a8');
+    const audioCharacteristic = service.characteristics.find((v) => v.id === 'beb5483e-36e1-4688-b7f5-ea07361b26a8' || v.id === 'aeab4b05-a5fd-4c89-89de-17f1509e2734');
     if (!audioCharacteristic) {
         return null;
     }
 
     return {
         kind: 'compass',
-        codec: 'pcm-8' as const,
+        codec: (audioCharacteristic.id === 'beb5483e-36e1-4688-b7f5-ea07361b26a8' ? 'pcm-8' as const : 'mu-law-16' as const),
         source: audioCharacteristic
     };
 }