Example RS485 code not working?
k4kfh opened this issue · comments
Hi, I've wired up the circuit described on your website using a single USB RS485 transciever and an Arduino Nano with a MAX485 on a breadboard. For some reason I cannot get anything to happen. The Arduino stays in RX mode constantly according to the LEDs, so not sure why it's doing that.
A & B polarity must be respected. Master A must be connected to slave A. I spent 2 full days with this issue