AUX-RX/TX pins are auxiliary UART pins designed to help developers monitor and debug Notecard applications.
By default, the
AUX-RX/TX pins are disabled to prevent unnecessary power draw when not in use.
In order to enable
AUX-EN pin must be jumped to the Notecard logical high voltage. On Notecarrier boards, you can jump
The use of
AUX-RX/TX are not recommended for deployed applications, especially if they are battery powered. The auxiliary UART requires more power than the UART on the
Auxiliary Serial Communications Config
To communicate with the Notecard using the auxiliary UART, configure your serial device as follows: