OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Rain Delay hardware 1.3u › Re: Re: Rain Delay hardware 1.3u
July 2, 2014 at 1:43 pm
#27376
Ray
Keymaster
The hardware part of rain sensor is quite simple: one pin is tied to ground, the other pin is connected to the microcontroller’s digital pin 0 (assuming you have 1.3u). So other than checking the solder joints of the rain sensor terminal, and the microcontroller pins, I can’t think of anything else that would cause the issue.