This is a solar powered charging board that will charge a LiPo battery and use it as a power supply backup if the output voltage from the panel drops.

You can use this to charge and power USB / 5V devices and a battery all at the same time! The USB fata lines are passed through the board so you can program (and also charge the battery) any downstream connected device at the same time it is being run off the solar panels or the lipo battery.

This works great with Arduino or Raspberry Pi!