bluetooth/aioble/examples/temp_sensor.py: Properly notifies on update.

Signed-off-by: Stephen More <stephen.more@gmail.com>

Author: mores

micropython/bluetooth/aioble/examples/temp_sensor.py

@@ -39,7 +39,7 @@ def _encode_temperature(temp_deg_c):
 async def sensor_task():
     t = 24.5
     while True:
-        temp_characteristic.write(_encode_temperature(t))
+        temp_characteristic.write(_encode_temperature(t), send_update=True)
         t += random.uniform(-0.5, 0.5)
         await asyncio.sleep_ms(1000)