I have a basic 12V solar panel system set up with a basic (non-PPT) charge controller(anode/cathode for Panels-Battery-Output). I would like to monitor/control the system with an arduino-based external controller.
Specs on the panel system (let me know if I left anything out)
12V DC - 20A Max current - 12V 35Ah lead-acid - Panel output: 100W
I am looking for Wh left in the battery and W currently being used.
To achieve this:
- Voltage divider on battery
- Shunt on charge controller output line.
Can I combine these circuits into one?