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 2, 2023 at 3:51 pm #75503 TobascoParticipant Hi @Ray, it’s time to say “Thank you” for sharing your generally work on OpenSprinkler and for sharing this effort as open source/hardware. It brought me back to my 40 years ago roots of hardware tinkering and was a big benefit! salute Thomas