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Thanks Peter,
Sounds like most astro weather sensors. I’ve mucked around a bit with arduino, but haven’t done any programming for a proper computer.
I was looking at AAG today and noticed they now offer the hydreon optical rain sensor instead of the usual capacitance rain sensor. I’ve installed one of these in the school observatory as a back rain sensor. They’re about $100 and output via either a NO or NC relay - very sensitive to any rain.
I’ll look into automation a bit more and come back to you if I want to head down that path.
Ta
DT
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