Unreliable serial communcation via the UART TX/RX GPIO Pins

[yurikleb]

Seems like a similar TX pin problem occurs on some of the Jetson Nano Dev Kits as well and being discussed here:

Uart TX not working

Hi, I am trying to get UART working on my jetson nano. More specifically im seemingly not able to transmit anything over UART to some Sabertooth motor controllers. I have followed this guide: Jetson Nano - UART - JetsonHacks with regards to transmitting in python3 and entering the stop and disable commands. I’m using the older jetson nano with only one camera port if that’s any help. My sabertooth code is here although I forgot to commit the latest code with the serial .write() method and wil…