Arduino library for reading voltage of the Seeed Studio NRF52480 BLE (Sense) battery and set the charge current

This library allows to use the integrated battery voltage monitor with ease.

#include <Nrf52Bat.h>

Nrf52Bat battery = Nrf52Bat();

*percentage is currently only a very rough linear estimation

float voltage = battery.getVoltage();
float percentage = battery.getPercentage();
bool charging = battery.isCharging();

you can select high and low charge current, which is best depends on the capacity and charge rating of your battery and use case

battery.setChargeCurrent100mA();
battery.setChargeCurrent50mA();

Important note: these setting are purely there for the battery level calculation, they do not change the behaviour of charging and discharging

//set the voltage where the battery is considered empty/0% to 3.1V, note the battery charge ic (BQ25101) will lock out at 3.3V (typ)
battery.setMinVoltage(3.1)
//set the voltage that will be considered 100% to 4.3V, note: the battery charge IC (BQ25101) will charge the battery up to 4.2V (typ)
battery.setMaxVoltage(4.3);
//

For a complete Example, see examples/Nrf52Bat.ino