OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Will Opensprinkler work if I don't connect GPIO 14 and 15 ? › Reply To: Will Opensprinkler work if I don't connect GPIO 14 and 15 ? January 14, 2015 at 6:44 pm #35213 RayKeymaster I am pretty sure you can use software defined TX/RX — in other words you can designate any two GPIO pins to function as TX/RX.
