Originally Posted By: mlord
So, you had to use full RS-232 levels to connect to the RX/TX pins on the header on the board? I would have guessed that the board would already be operating at 5V or 3.3V levels for those pins


Okay, the pins on that large header (top left on board) are supposedly direct from the WT32i module itself, so everything (digital) there is 3.3V CMOS logic.

So Tony, why all of the fuss with an RS232 "shield" etc for communicating with your Arduino? It should instead just be directly wired to the RX/TX pins on the Arduino (or to any other chosen pins if using "software serial").

Oh, unless all of your RS232 stuff is for the empeg side of things. In which case it makes sense now. (?)


Edited by mlord (02/11/2017 22:14)