getdata disconnect when closing

apps/getData.py

@@ -46,32 +46,43 @@ def notification_handler(characteristic: BleakGATTCharacteristic, data: bytearra
 
 async def ble_task():
     global outdoorConnected
+    client = None
 
-    while True:
-        device = await BleakScanner.find_device_by_name(outdoorName)
-
-        if device is None:
-            outdoorConnected = 0
-
-            print("no device found, wait then scan again")
-            await asyncio.sleep(10)
-            continue
-
-        try:
-            async with BleakClient(device) as client:
-                outdoorConnected = 1
-                print(f"connected to {outdoorName}")
-
-                await client.start_notify(TEMP_UUID, notification_handler)
-                await client.start_notify(PRESSURE_UUID, notification_handler)
-                await client.start_notify(HUMIDITY_UUID, notification_handler)
-                await client.start_notify(ALTITUDE_UUID, notification_handler)
-
-                while (client.is_connected):
-                    await asyncio.sleep(1)
-        except Exception:
-            outdoorConnected = 0
-            print("exception while connecting or getting data")
+    try:
+        while True:
+            device = await BleakScanner.find_device_by_name(outdoorName)
+
+            if device is None:
+                outdoorConnected = 0
+                print("No device found, wait then scan again")
+                await asyncio.sleep(10)
+                continue
+
+            try:
+                async with BleakClient(device) as client:
+                    outdoorConnected = 1
+                    print(f"Connected to {outdoorName}")
+
+                    await client.start_notify(TEMP_UUID, notification_handler)
+                    await client.start_notify(PRESSURE_UUID, notification_handler)
+                    await client.start_notify(HUMIDITY_UUID, notification_handler)
+                    await client.start_notify(ALTITUDE_UUID, notification_handler)
+
+                    while client.is_connected:
+                        await asyncio.sleep(1)
+            
+            except Exception as e:
+                print(f"Connection lost or error: {e}")
+            finally:
+                outdoorConnected = 0
+                print("Cleaning up connection state...")
+
+    except asyncio.CancelledError:
+        print("BLE task is being cancelled...")
+        if client and client.is_connected:
+            await client.disconnect()
+        outdoorConnected = 0
+        raise
 
 async def sensor_task():
     global indoorValues