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.
122 lines
3.4 KiB
122 lines
3.4 KiB
// -----------------------------------------------------------------------------
|
|
// Energy Monitor Sensor using builtin ADC
|
|
// Copyright (C) 2017 by Xose Pérez <xose dot perez at gmail dot com>
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
#include "Arduino.h"
|
|
#include "BaseSensor.h"
|
|
#include "EmonSensor.h"
|
|
|
|
#define EMON_ANALOG_RESOLUTION 10
|
|
#define EMON_ANALOG_CHANNELS 1
|
|
|
|
class EmonAnalogSensor : public EmonSensor {
|
|
|
|
public:
|
|
|
|
// ---------------------------------------------------------------------
|
|
// Public
|
|
// ---------------------------------------------------------------------
|
|
|
|
EmonAnalogSensor(): EmonSensor() {
|
|
_channels = EMON_ANALOG_CHANNELS;
|
|
_sensor_id = SENSOR_EMON_ANALOG_ID;
|
|
init();
|
|
}
|
|
|
|
// ---------------------------------------------------------------------
|
|
// Sensor API
|
|
// ---------------------------------------------------------------------
|
|
|
|
// Initialization method, must be idempotent
|
|
void begin() {
|
|
|
|
if (!_dirty) return;
|
|
_dirty = false;
|
|
|
|
// Number of slots
|
|
_count = _magnitudes;
|
|
|
|
// Bit depth
|
|
_resolution = EMON_ANALOG_RESOLUTION;
|
|
|
|
// Init analog PIN)
|
|
pinMode(0, INPUT);
|
|
|
|
// Call the parent class method
|
|
EmonSensor::begin();
|
|
|
|
// warmup channel 0 (the only one)
|
|
read(0);
|
|
|
|
}
|
|
|
|
// Descriptive name of the sensor
|
|
String description() {
|
|
return String("EMON @ ANALOG @ GPIO0");
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
|
|
// Pre-read hook (usually to populate registers with up-to-date data)
|
|
void pre() {
|
|
|
|
_current[0] = read(0);
|
|
|
|
#if EMON_REPORT_ENERGY
|
|
static unsigned long last = 0;
|
|
if (last > 0) {
|
|
_energy[0] += (_current[0] * _voltage * (millis() - last) / 1000);
|
|
}
|
|
last = millis();
|
|
#endif
|
|
|
|
}
|
|
|
|
// Current value for slot # index
|
|
double value(unsigned char index) {
|
|
|
|
_error = SENSOR_ERROR_OK;
|
|
unsigned char channel = index / _magnitudes;
|
|
|
|
unsigned char i=0;
|
|
#if EMON_REPORT_CURRENT
|
|
if (index == i++) return _current[channel];
|
|
#endif
|
|
#if EMON_REPORT_POWER
|
|
if (index == i++) return _current[channel] * _voltage;
|
|
#endif
|
|
#if EMON_REPORT_ENERGY
|
|
if (index == i) return _energy[channel];
|
|
#endif
|
|
|
|
_error = SENSOR_ERROR_OUT_OF_RANGE;
|
|
return 0;
|
|
|
|
}
|
|
|
|
protected:
|
|
|
|
unsigned int readADC(unsigned char channel) {
|
|
(void) channel;
|
|
return analogRead(0);
|
|
}
|
|
|
|
};
|