OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Some questions › Re: Re: Some questions May 21, 2014 at 8:16 am #26671 ArchadesParticipant Just got my opsi, still waiting on my 24vAC PSU. Can I power the rPI via usb and test the RTC feature without the 24vAC or do I just wait till I have the 24VAC and use only that, without usb 5v psu?
