Hi i am trying to comunicate two arduinos using Serial pins. I can see the bytes im sending when I reset the arduino, but sudenly the message received is always the same has nothing to do with the bytes I am sending. The conections are just rx on arduino 1 to tx on arduino 2, and tx arduino 1 to r…

@arturovelasquez It was difficult for me to reproduce the fault of your sketch of post #1 with UART connection between two Arduinos. It is not recommended to use the UART Port for data exchange as these ports remain engaged with PC/IDE/SM. I have connected UNO and NANO using Software UART (SUART) …

Serial between two arduino UNO

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groundFungus August 9, 2022, 11:33pm 3

The serial input basics tutorial may be of interest.

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Serial between two arduino UNO

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