We could add some ammeters (e.g., these from Pi Hut) into the circuits to measure the current flowing out of or into the batteries and/or out of the solar panels and wirelessly report the measured values. This would allow to spot power supply problems (batteries not charging etc.).
We could add some ammeters (e.g., these from Pi Hut) into the circuits to measure the current flowing out of or into the batteries and/or out of the solar panels and wirelessly report the measured values. This would allow to spot power supply problems (batteries not charging etc.).