I would like to be able to send a notification via Home Assistant when a battery is fully charged through one of my Wemos D1 Mini Battery Shields (V1.1.0). Clearly the green LED turns on when it is fully charged and I am thinking there must be some way to trigger a transistor or some method to one of the D1 Mini pins to send a notification.

Looking at the schematic Pin 2 of the TP5410 has to do with the green LED. Any suggestions or help would be appreciated in how to accomplish my goal. Thanks.

Battery Shield Schematic


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