OpenSprinkler Forums Hardware Questions OpenSprinkler Pi (OSPi) Comments / Suggestions on OSPi v1.4 Re: Re: Comments / Suggestions on OSPi v1.4



I’m not sure if the Raspberry or Beagle have reliable interrupt driven inputs like the AVR’s. This $4.99 rain gauge has a dry contact reed relay output and a phone jack style connector. I haven’t measured the rain amount per pulse yet. In any case, measured rain total readings would take some of the guess work out of watering time adjustments.
Some photos of the internal mechanism: