I am using the Rs232 shield from DFROBOT and I'm trying to get a small packet of data from a solar inverter using and Arduino MEGA. I have this working if I use a MAX RS232 on TX1 and RX1, however the DFROBOT Shield is using TX0 and RX0, which is the same as the serial output window that I'm using…

[image] leebaz: But I can go back to a separate MAX3232 board and wire it up if that's the best option. That's what I'd do. The other possibility is to send your debugging output out of serial one. You would need a way to receive and display it - another Arduino perhaps.

RS232 Shield send command and receive data back

Projects Networking, Protocols, and Devices

camsysca September 1, 2022, 3:51pm 3

As a newbie I'll go easy on you. Please read

and help us help you.
Thanks
C

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RS232 Shield send command and receive data back

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