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UART TTL to RS485 connection
Posted: Mar 20th, 2019, 5:42 pm
by PhilA
Here is how I connected my Arduino Nano's to the RS 485 modules.
Re: UART TTL to RS485 connection
Posted: Mar 21st, 2019, 6:13 am
by Bennachie
I think there's a mistake in your diagram. For an RS485 circuit, A+ should connect to A+, and B- should connect to B-. There should be no crossover.
Re: UART TTL to RS485 connection
Posted: Mar 21st, 2019, 7:05 pm
by PhilA
I could have got it wrong, I'll check my connections and verify.
Re: UART TTL to RS485 connection
Posted: Mar 22nd, 2019, 4:36 am
by PhilA
Yep got I it wrong. Checked my connections on the ROV and here is how it is actually connected.