WeMos D1 MINI 1A Charging Shield

This module allows using D1 Mini without USB cable so it can be truly wireless.

Put D1 Mini anywhere using this battery shield and a lithium battery.
A lithium battery connected to this shield provides power for the entire D1 small system.

There is a charging module on the board. When the battery runs out, you don't need to unplug the battery, just use USB port to charge.

1. Connect to lithium battery (standard 3.3-4.2v)
2. Connect a charger to USB port (normal 5V)
3. Green LED - charging is completed
4. Red LED - charging in progress