I am testing the ble_app_uart and nRF UART app. When I transmit the message from mobile phone to the module. The module can always receive the data and display on the terminal on the PC computer connected to the nRF51822. However, when I input the data to the PC computer terminal, sometimes the data is received and displayed successfully (Rx:aaaaaa) in the nRF UART app, while antoher times, it will display RX:(null). Please tell me how to solve it.
