Fork of the espurna firmware for `mhsw` switches
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

104 lines
2.8 KiB

// -----------------------------------------------------------------------------
// Eergy monitor sensor
// -----------------------------------------------------------------------------
#pragma once
#include "Arduino.h"
#include "BaseSensor.h"
#include "EmonSensor.h"
class EmonAnalogSensor : public EmonSensor {
public:
EmonAnalogSensor(unsigned char gpio, double voltage, unsigned char bits, double ref, double ratio): EmonSensor(voltage, bits, ref, ratio) {
// Cache
_gpio = gpio;
_count = _magnitudes;
// Prepare GPIO
pinMode(gpio, INPUT);
// warmup
read(_gpio, _pivot);
}
// Descriptive name of the sensor
String name() {
char buffer[20];
snprintf(buffer, sizeof(buffer), "EMON @ GPIO%d", _gpio);
return String(buffer);
}
// Descriptive name of the slot # index
String slot(unsigned char index) {
return name();
}
// Type for slot # index
magnitude_t type(unsigned char index) {
_error = SENSOR_ERROR_OK;
unsigned char i=0;
#if EMON_REPORT_CURRENT
if (index == i++) return MAGNITUDE_CURRENT;
#endif
#if EMON_REPORT_POWER
if (index == i++) return MAGNITUDE_POWER_APPARENT;
#endif
#if EMON_REPORT_ENERGY
if (index == i) return MAGNITUDE_ENERGY;
#endif
_error = SENSOR_ERROR_OUT_OF_RANGE;
return MAGNITUDE_NONE;
}
// Current value for slot # index
double value(unsigned char index) {
_error = SENSOR_ERROR_OK;
// Cache the value
static unsigned long last = 0;
if ((last == 0) || (millis() - last > 1000)) {
_current = read(0, _pivot);
#if EMON_REPORT_ENERGY
_energy += (_current * _voltage * (millis() - last) / 1000);
#endif
last = millis();
}
// Report
unsigned char i=0;
#if EMON_REPORT_CURRENT
if (index == i++) return _current;
#endif
#if EMON_REPORT_POWER
if (index == i++) return _current * _voltage;
#endif
#if EMON_REPORT_ENERGY
if (index == i) return _energy;
#endif
_error = SENSOR_ERROR_OUT_OF_RANGE;
return 0;
}
protected:
unsigned int readADC(unsigned char channel) {
return analogRead(_gpio);
}
unsigned char _gpio;
double _pivot = 0;
double _current;
#if EMON_REPORT_ENERGY
unsigned long _energy = 0;
#endif
};