UART TTL to RS485 connection
UART TTL to RS485 connection
Here is how I connected my Arduino Nano's to the RS 485 modules.
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- ttl to rs485.jpg (174.47 KiB) Viewed 5055 times
Re: UART TTL to RS485 connection
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
I could have got it wrong, I'll check my connections and verify.
Re: UART TTL to RS485 connection
Yep got I it wrong. Checked my connections on the ROV and here is how it is actually connected.
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- ttl to rs485.jpg (173.15 KiB) Viewed 5033 times