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I2c comms

(Richard) #1

Any problems with i2c comms between two arduino uno’s and 200 ft of #24AWG wire? In the near future I want to implement two-way coms between my undersea rover ( a better name than ROV) and the surface, as most of you now have.


(Rusty) #2


I2C is not designed for long distances at all. It will have trouble after a few meters. I’d look into a differential signal communication method like RS422 or RS485.



(Richard) #3

Okay, thanks. Looks like Sparkfun makes a neat RS485 breakout board.