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General Discussion / Old fashioned serial RS-232

« on: August 15, 2016, 11:43:14 AM »

Forgive the newb - is the expectation that I would use the Arduino I/O for the RS-232 interface (what's that you say?) which my old auditorium automation system uses. I need to have two bi-directional connections, I am essentially inserting the Tiny in-between a controller and an end device that gives status - enlighten this dullard, please - thank you.