Hi Ray I only see one relay and it looks like it’s connected to the 24VAC to switch that in or out? (or maybe I’m looking at the wrong schematic?)
Could you point me in the right direction where the relay is that will allow me to short two wires together on my garage door opener button? Thanks.
The relay is not wired to 24VAC — the three mapped-out pins NO (normally open), CO (change-over), NC (normally closed) are not connected to anything internally. To use it to control garage door, solder the two wires to NO and CO. This way, when the relay is activated, NO and CO will be shorted together. On OpenSprinkler 2.1, the relay is activated by setting a high on pin 14.