Hey all, I'm trying to implement a RS485 communication with ARDUINO and am using MAX485 to connect from PC to ARDUINO. The problem is that whenever I set the DE-RE pins to low I get 0 byte outputted to my debug serial monitor (Serial2). Even simply doing digitalWrite(pinIO, HIGH); delay(1000); di…

MAX485 zero byte when switched to LOW

Arctic_Eddie October 5, 2016, 5:43pm 4

Maybe your motor controller is sending back an ACK byte, or error code. You'll have to investigate the controllers communication structure.

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