Is it possible to measure the voltage of a 12v battery with the pi zero with automation phat?
As far as the documentation goes I understand I can hook up a 12v battery/supply and use it as a relay, I will use that feature too, but it would be very nice to see the voltage too.
The plan is a pi zero hooked up to multiple 12v batteries on a off grid solar system(already there), with FHEM on it for automation tasks. now it would be very nice to also be able to see the voltage and record it over time.
The pi zero would be connected to the 12v battery via a 12v cigarette -> USB converter, so 12v to 5V