Hi all, i am struggeling to get this project to actually work. I wnt to create a Modbus RTU Slave that connect via USB to my openPLC Pi which runs the Modbus Master. My Requirements are: MEGA 2560 (XA) - Input extender will only read all Pins as Inputs MEGA 2560 (XB) - Output extender will out…

Custom ModBus RTU Slave via USB

kmin July 22, 2025, 1:06pm 4

Did you try the switch example from that library? With default 8N1 ?

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