40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
#pragma once
|
|
|
|
#include "TinySwitch.h"
|
|
#include "Tiny.h"
|
|
|
|
using TinySwitch::sendInfo;
|
|
|
|
class TinySensor {
|
|
protected:
|
|
uint8_t id;
|
|
|
|
long readVcc() {
|
|
// Read 1.1V reference against AVcc
|
|
// set the reference to Vcc and the measurement to the internal 1.1V reference
|
|
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
|
|
ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
|
|
#elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
|
|
ADMUX = _BV(MUX5) | _BV(MUX0);
|
|
#elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
|
|
ADMUX = _BV(MUX3) | _BV(MUX2);
|
|
#else
|
|
ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
|
|
#endif
|
|
|
|
delay(2); // Wait for Vref to settle
|
|
ADCSRA |= _BV(ADSC); // Start conversion
|
|
while (bit_is_set(ADCSRA, ADSC)); // measuring
|
|
|
|
uint16_t result = ADC; // read ADC in one step
|
|
|
|
result = 1126400L / result; // Calculate Vcc (in mV); 1126400 = 1.1*1024*1000
|
|
return result; // Vcc in millivolts
|
|
}
|
|
|
|
public:
|
|
TinySensor(SensorId id) {
|
|
this->id = id;
|
|
}
|
|
};
|