OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Change Firmware to control stations directly via GPIO pins (relays) › Reply To: Change Firmware to control stations directly via GPIO pins (relays) May 8, 2023 at 10:06 am #75576 vampParticipant @Tobasco We are already bought the 8 relay board, so first we would like to use this ones. and really not need the buttons and the display, so would be good to use this GPIO-s