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) March 30, 2023 at 5:08 am #75130 TobascoParticipant @Vamp Hi Vamp > I think that try this FW on 8 relay board. If i change this, is enough? Looks good for me (if your GPIOs are correct). salute Thomas