examples/bluetooth/ble_uart_peripheral: Use append mode for RX char.

examples/bluetooth/ble_uart_peripheral.py

@@ -22,8 +22,8 @@ class BLEUART:
         self._ble.active(True)
         self._ble.irq(handler=self._irq)
         ((self._tx_handle, self._rx_handle,),) = self._ble.gatts_register_services((_UART_SERVICE,))
-        # Increase the size of the rx buffer.
-        self._ble.gatts_write(self._rx_handle, bytes(rxbuf))
+        # Increase the size of the rx buffer and enable append mode.
+        self._ble.gatts_set_buffer(self._rx_handle, rxbuf, True)
         self._connections = set()
         self._rx_buffer = bytearray()
         self._handler = None