Files
buzzer/user/ADC.h
2018-02-03 16:55:37 +01:00

22 lines
366 B
C++
Executable File

#ifndef ADC_H
#define ADC_H
class ADC {
public:
static uint16_t getA0() {
return 0xffff & system_adc_read();
}
static uint16_t getVcc() {
static constexpr float SCALER = 1.93; // divider of 10k / 10k -> * 2
static constexpr int V_REF = 330; // 3.3 volt
static constexpr int MUL = SCALER * V_REF;
return getA0() * MUL / 1024;
}
};
#endif // ADC_H