Hi I want to try mimicking rs485 communication with arduino. We want to test before purchasing a rs485 temp hum device at make sure this will works. Currently I use nano as replacement for sensor and esp32 as gateway, the esp32 later will use mqtt to report to server. I cannot get pass the rs485 c…

Rs485 communication between arduino

kmin July 24, 2025, 5:07am 6

Rx Tx.
Ok, but your wiring still shows pins 0 and 1.

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