OpenSprinkler › Forums › OpenSprinkler Unified Firmware › ESP32 port of 2.1.9 firmware › Reply To: ESP32 port of 2.1.9 firmware November 16, 2021 at 10:00 am #71658 zenonmbParticipant @Javier, I am thinking of expanding to 16 stations (since there are plenty pins available)from your code and not sure how challenging would be so would like an advice. regards, martin