I'm using the test file for the INA3221 to see if the SunAirPlus is working, and the voltage of the solar panel registers as 0 when it's connected. The red LED next to the solar cell port is also not lighting up. However, the Pi is able to run on power from the battery and if an AC adapter is plugged in. Any clue as to why that might be the case?
I realized the solar panel was actually plugged in backwards and reversed the polarity of the wires, and now the battery seems to be charging! I'm assuming that's what the negative current means. Is that correct?
These numbers come from having a LiPo battery, solar panel, and 5V AC adapter plugged into the SunAirPlus and with no USB PowerControl between the SunAirPlus and the RPi. The RPi also currently does not turn on when the USB PowerControl is part of the system. That's because the battery voltage is below 3.8V, right? Will the voltage go up once the battery is sufficiently charged?
------------------------------ LIPO_Battery Bus Voltage: 3.74 V LIPO_Battery Shunt Voltage: -47.32 mV LIPO_Battery Load Voltage: 3.70 V LIPO_Battery Current 1: -473.20 mA
Solar Cell Bus Voltage 2: 4.64 V Solar Cell Shunt Voltage 2: -0.08 mV Solar Cell Load Voltage 2: 4.64 V Solar Cell Current 2: 0.80 mA
Output Bus Voltage 3: 4.92 V Output Shunt Voltage 3: 35.24 mV Output Load Voltage 3: 4.96 V Output Current 3: 352.40 mA