OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Relais are inverse › Reply To: Relais are inverse August 3, 2019 at 1:55 pm #62005 KunstfliegerParticipant Thanks for this answer. This is correct. I use this off-the-shelf relay modul. Is it possible to change this in the source code on the OSPI?
