Expand description
Battery voltage on GPIO10 (ADC1) through a 100 kΩ / 100 kΩ divider.
The board routes no charge-status or USB-presence signal to a GPIO, so voltage is the only battery information available. While USB power is connected, the reading is the charger’s output, not the cell’s resting voltage.
Structs§
- Battery
- Battery voltage monitor.
- Battery
Resources - ADC1 and the sense pin.
Functions§
- estimate_
percent - Rough state of charge for a single Li-ion cell from its voltage, in %.