12v battery monitor

WebThings
#1

Hi, I’ve installed WebThings on a RPI with a mobile internet in my sailboat. It’s going to be on sea this winter so I’m keeping an eye on temp and humidity. For now the system is running on power from shore, but I need to run it from my 12v battery.

It would be really nice to monitor the voltage on the 12v battery. Any tips ? Sensors, systems?

Cheers!

#2

Try this: https://www.enigma14.eu/wiki/AD_Converter_PCF8591_for_Raspberry_Pi

#3

thanks! I’ll try it and let you know