OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Info openSprinkler › Reply To: Info openSprinkler September 17, 2017 at 1:31 pm #47717 PeterParticipant Yes, the GPIO Station functionality lets a raspberry pi only solution drive many relay boards. You would need to ensure that the gpio pins do not conflict with what the firmware reserves for driving an OSPi expansion board.
