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Record a switch make and break times for later analysis

Posted: Thu May 13, 2021 5:45 pm
by johngammel
I want to record when the compressor on my air conditioning system runs. It seems to me that the easiest way is to install a sail (air flow) switch onto the compressor housing and then route the low voltage wiring inside where it's nice and dry for the Pi 3 (a leftover). No high voltage to contend with and no panel install needed. I'm very busy with other projects so I'd like to just find a load and go solution. Just need a text or csv file as the output. Can you point me to something that I can just easily reproduce?