The battery level detect circuit of nrf52832

[chianglin]

Hi,

As well know, the nrf52832 had build-in a battery level detect function.  It can get battery-level by following program

	batt_lvl_in_milli_volts = ADC_RESULT_IN_MILLI_VOLTS(adc_value) + DIODE_FWD_VOLT_DROP_MILLIVOLTS;
	percentage_batt_lvl = battery_level_in_percent(batt_lvl_in_milli_volts);

Would you please tell me how to design it's detect hardware circuit, then I can get battery-level by above program?

Thank you

Chianglin

[Turbo J]

Nope, nrf52832 does not have build in battery level detect. It can only measure VCC or analog in (AINx) voltages.

Measuring battery voltage depends on how it is connected in the schematic.