11 lines
250 B
C++
11 lines
250 B
C++
#include <Arduino.h>
|
|
|
|
#define ADC_AREF 3.3f
|
|
#define BATVOLT_R1 2.0f
|
|
#define BATVOLT_R2 2.0f
|
|
#define BATVOLT_PIN BAT_VOLT
|
|
|
|
int getBattery()
|
|
{
|
|
return ((ADC_AREF / 1.023) * (BATVOLT_R1 + BATVOLT_R2) / BATVOLT_R2 * (float)analogRead(BATVOLT_PIN));
|
|
}
|