Modifications

== Port Série ==

== Port Série ==

If you want to control the Sound Board over UART Serial, you can do so by using the TX, RX and UG pins.

Vous pouvez utiliser les broches TX, RG et UG si vous désirez commander la carte son par l'intermédiaire du port série (UART).

* '''TX''' - this is the serial OUT from the board. 3.3V logic

* '''TX''' - c'est la SORTIE du port série this is the serial OUT from the board. 3.3V logic

* '''RX''' - this is the serial INTO the board. We add some level shifting so you can use 3-5V logic.

* '''RX''' - this is the serial INTO the board. We add some level shifting so you can use 3-5V logic.

* '''UG''' - the UART/GPIO selector pin. Pulled high for default GPIO trigger mode. Tie to ground and reset the board for UART mode.

* '''UG''' - the UART/GPIO selector pin. Pulled high for default GPIO trigger mode. Tie to ground and reset the board for UART mode.