Hi, I'm trying to use an existing code for Arduino on Opta Wifi . Key part of this code is the use of UART to communicate to an external sensor on RS485, using a proprietary protocol (unfortunately it is NOT Modbus). I have two problems: I don't know which of the serial ports of the microcontroll…

In the OPTA WiFi documentation, I found information that the AUX connector for the expansion module has RX and TX pins. I haven't figured out how to use them yet. If anyone knows which Serial it is, please help. From what I understand, the connections marked in red are located on upper side, and th…

Serial ports on Opta

Official Hardware Opta

Marian018 May 6, 2024, 11:45am 6

Hi @gibo_23

Have you found a solution to use any serial ports on Arduino Opta?

Thanks,
marian

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Serial ports on Opta

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