The USB-C Micro-Lipo charger is special. We've exposed the data lines so you can use it both as a USB-C breakout and a Micro-Lipo charger. Since there's a little more to it, we've included the pinouts here. Let's take a look!
The data pins are not exposed on the micro-B charger, only the USB-C version!
Using this board as a Micro-Lipo charger is simple with the two connectors available:
- USB-C connector - Shown above on the left, 5V input via a USB Type C connector
- JST connector - Shown above on the right, this two-pin JST connector is for plugging in single Lithium Ion/Lithium Polymer 3.7/4.2v batteries (not for older 3.6/4.1v cells)
There are two LEDs on the board.
- CHG - The charge LED is red while the battery is charging
- DONE - The done LED is green once the battery is fully charged.
If both LEDs are on at the same time, it means the battery is damaged or isn't plugged in.