can i use the sda/scl pins and tx rx on the arduino leonardo as digital i/io ? want to connect toggle switches to it for a button box.
The pinout diagram states sda scl is D2,D3 and TX RX is D1 D0. will it be okay if i do so or should i expect magic smoke to come out ? that way i dont have to code for a button matrix and deal with all the wiring and stuff.