OpenSprinkler › Forums › Hardware Questions › wiring a raspberry pi and 8 port relay station › Reply To: wiring a raspberry pi and 8 port relay station
October 9, 2017 at 1:01 am #47986
It’s hard to tell from the picture which are the wires that go to the 24VAC port. The transformer wires should go there at least. Then the rain sensor may be a type that’s powered by 24VAC (especially if you have a wireless rain sensor). Again, from the picture it’s kind of hard to tell, but you can use a multimeter and its conductivity measurement to figure out which wire goes where.