Fork of the espurna firmware for `mhsw` switches
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/*
SENSOR MODULE
Copyright (C) 2016-2017 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include <vector>
#include "filters/MaxFilter.h"
#include "filters/MedianFilter.h"
#include "filters/MovingAverageFilter.h"
#include "sensors/BaseSensor.h"
typedef struct {
BaseSensor * sensor;
unsigned char local; // Local index in its provider
magnitude_t type; // Type of measurement
unsigned char global; // Global index in its type
double current; // Current (last) value, unfiltered
double filtered; // Filtered (averaged) value
double reported; // Last reported value
double min_change; // Minimum value change to report
BaseFilter * filter; // Filter object
} sensor_magnitude_t;
std::vector<BaseSensor *> _sensors;
std::vector<sensor_magnitude_t> _magnitudes;
unsigned char _counts[MAGNITUDE_MAX];
bool _sensor_realtime = API_REAL_TIME_VALUES;
unsigned char _sensor_temperature_units = SENSOR_TEMPERATURE_UNITS;
double _sensor_temperature_correction = SENSOR_TEMPERATURE_CORRECTION;
unsigned char _sensor_isr = 0xFF;
// -----------------------------------------------------------------------------
// Private
// -----------------------------------------------------------------------------
String _sensorTopic(magnitude_t type) {
if (type == MAGNITUDE_TEMPERATURE) return String(SENSOR_TEMPERATURE_TOPIC);
if (type == MAGNITUDE_HUMIDITY) return String(SENSOR_HUMIDITY_TOPIC);
if (type == MAGNITUDE_PRESSURE) return String(SENSOR_PRESSURE_TOPIC);
if (type == MAGNITUDE_CURRENT) return String(SENSOR_CURRENT_TOPIC);
if (type == MAGNITUDE_VOLTAGE) return String(SENSOR_VOLTAGE_TOPIC);
if (type == MAGNITUDE_POWER_ACTIVE) return String(SENSOR_ACTIVE_POWER_TOPIC);
if (type == MAGNITUDE_POWER_APPARENT) return String(SENSOR_APPARENT_POWER_TOPIC);
if (type == MAGNITUDE_POWER_REACTIVE) return String(SENSOR_REACTIVE_POWER_TOPIC);
if (type == MAGNITUDE_POWER_FACTOR) return String(SENSOR_POWER_FACTOR_TOPIC);
if (type == MAGNITUDE_ENERGY) return String(SENSOR_ENERGY_TOPIC);
if (type == MAGNITUDE_ENERGY_DELTA) return String(SENSOR_ENERGY_DELTA_TOPIC);
if (type == MAGNITUDE_ANALOG) return String(SENSOR_ANALOG_TOPIC);
if (type == MAGNITUDE_DIGITAL) return String(SENSOR_DIGITAL_TOPIC);
if (type == MAGNITUDE_EVENTS) return String(SENSOR_EVENTS_TOPIC);
if (type == MAGNITUDE_PM1dot0) return String(SENSOR_PM1dot0_TOPIC);
if (type == MAGNITUDE_PM2dot5) return String(SENSOR_PM2dot5_TOPIC);
if (type == MAGNITUDE_PM10) return String(SENSOR_PM10_TOPIC);
if (type == MAGNITUDE_CO2) return String(SENSOR_CO2_TOPIC);
return String(SENSOR_UNKNOWN_TOPIC);
}
unsigned char _sensorDecimals(magnitude_t type) {
if (type == MAGNITUDE_TEMPERATURE) return SENSOR_TEMPERATURE_DECIMALS;
if (type == MAGNITUDE_HUMIDITY) return SENSOR_HUMIDITY_DECIMALS;
if (type == MAGNITUDE_PRESSURE) return SENSOR_PRESSURE_DECIMALS;
if (type == MAGNITUDE_CURRENT) return SENSOR_CURRENT_DECIMALS;
if (type == MAGNITUDE_VOLTAGE) return SENSOR_VOLTAGE_DECIMALS;
if (type == MAGNITUDE_POWER_ACTIVE) return SENSOR_POWER_DECIMALS;
if (type == MAGNITUDE_POWER_APPARENT) return SENSOR_POWER_DECIMALS;
if (type == MAGNITUDE_POWER_REACTIVE) return SENSOR_POWER_DECIMALS;
if (type == MAGNITUDE_POWER_FACTOR) return SENSOR_POWER_FACTOR_DECIMALS;
if (type == MAGNITUDE_ENERGY) return SENSOR_ENERGY_DECIMALS;
if (type == MAGNITUDE_ENERGY_DELTA) return SENSOR_ENERGY_DECIMALS;
if (type == MAGNITUDE_ANALOG) return SENSOR_ANALOG_DECIMALS;
if (type == MAGNITUDE_EVENTS) return SENSOR_EVENTS_DECIMALS;
if (type == MAGNITUDE_PM1dot0) return SENSOR_PM1dot0_DECIMALS;
if (type == MAGNITUDE_PM2dot5) return SENSOR_PM2dot5_DECIMALS;
if (type == MAGNITUDE_PM10) return SENSOR_PM10_DECIMALS;
if (type == MAGNITUDE_CO2) return SENSOR_CO2_DECIMALS;
return 0;
}
String _sensorUnits(magnitude_t type) {
if (type == MAGNITUDE_TEMPERATURE) return (_sensor_temperature_units == TMP_CELSIUS) ? String("C") : String("F");
if (type == MAGNITUDE_HUMIDITY) return String("%");
if (type == MAGNITUDE_PRESSURE) return String("hPa");
if (type == MAGNITUDE_CURRENT) return String("A");
if (type == MAGNITUDE_VOLTAGE) return String("V");
if (type == MAGNITUDE_POWER_ACTIVE) return String("W");
if (type == MAGNITUDE_POWER_APPARENT) return String("W");
if (type == MAGNITUDE_POWER_REACTIVE) return String("W");
if (type == MAGNITUDE_POWER_FACTOR) return String("%");
if (type == MAGNITUDE_ENERGY) return String("J");
if (type == MAGNITUDE_ENERGY_DELTA) return String("J");
if (type == MAGNITUDE_EVENTS) return String("/min");
if (type == MAGNITUDE_PM1dot0) return String("µg/m3");
if (type == MAGNITUDE_PM2dot5) return String("µg/m3");
if (type == MAGNITUDE_PM10) return String("µg/m3");
if (type == MAGNITUDE_CO2) return String("ppm");
return String();
}
double _sensorProcess(magnitude_t type, double value) {
if (type == MAGNITUDE_TEMPERATURE) {
if (_sensor_temperature_units == TMP_FAHRENHEIT) value = value * 1.8 + 32;
value = value + _sensor_temperature_correction;
}
return roundTo(value, _sensorDecimals(type));
}
void _sensorConfigure() {
_sensor_realtime = getSetting("apiRealTime", API_REAL_TIME_VALUES).toInt() == 1;
_sensor_temperature_units = getSetting("tmpUnits", SENSOR_TEMPERATURE_UNITS).toInt();
_sensor_temperature_correction = getSetting("tmpCorrection", SENSOR_TEMPERATURE_CORRECTION).toFloat();
}
#if WEB_SUPPORT
void _sensorWebSocketOnSend(JsonObject& root) {
char buffer[10];
bool hasTemperature = false;
JsonArray& sensors = root.createNestedArray("sensors");
for (unsigned char i=0; i<_magnitudes.size(); i++) {
sensor_magnitude_t magnitude = _magnitudes[i];
unsigned char decimals = _sensorDecimals(magnitude.type);
dtostrf(magnitude.current, 1-sizeof(buffer), decimals, buffer);
JsonObject& sensor = sensors.createNestedObject();
sensor["type"] = int(magnitude.type);
sensor["value"] = String(buffer);
sensor["units"] = _sensorUnits(magnitude.type);
sensor["description"] = magnitude.sensor->slot(magnitude.local);
if (magnitude.type == MAGNITUDE_TEMPERATURE) hasTemperature = true;
}
//root["apiRealTime"] = _sensor_realtime;
root["tmpUnits"] = _sensor_temperature_units;
root["tmpCorrection"] = _sensor_temperature_correction;
if (hasTemperature) root["temperatureVisible"] = 1;
}
void _sensorAPISetup() {
for (unsigned char magnitude_id=0; magnitude_id<_magnitudes.size(); magnitude_id++) {
sensor_magnitude_t magnitude = _magnitudes[magnitude_id];
String topic = _sensorTopic(magnitude.type);
if (SENSOR_USE_INDEX || (_counts[magnitude.type] > 1)) topic = topic + "/" + String(magnitude.global);
apiRegister(topic.c_str(), topic.c_str(), [magnitude_id](char * buffer, size_t len) {
sensor_magnitude_t magnitude = _magnitudes[magnitude_id];
unsigned char decimals = _sensorDecimals(magnitude.type);
double value = _sensor_realtime ? magnitude.current : magnitude.filtered;
dtostrf(value, 1-len, decimals, buffer);
});
}
}
#endif
void _sensorTick() {
for (unsigned char i=0; i<_sensors.size(); i++) {
_sensors[i]->tick();
}
}
void _sensorPre() {
for (unsigned char i=0; i<_sensors.size(); i++) {
_sensors[i]->pre();
if (!_sensors[i]->status()) {
DEBUG_MSG("[SENSOR] Error reading data from %s (error: %d)\n",
_sensors[i]->name().c_str(),
_sensors[i]->error()
);
}
}
}
void _sensorPost() {
for (unsigned char i=0; i<_sensors.size(); i++) {
_sensors[i]->post();
}
}
// -----------------------------------------------------------------------------
// Interrupts
// -----------------------------------------------------------------------------
#if COUNTER_SUPPORT
unsigned char _event_sensor_id = 0;
void isrEventSensor() {
_sensors[_event_sensor_id]->InterruptHandler();
}
#endif // COUNTER_SUPPORT
// -----------------------------------------------------------------------------
// Values
// -----------------------------------------------------------------------------
void sensorRegister(BaseSensor * sensor) {
_sensors.push_back(sensor);
}
unsigned char sensorCount() {
return _sensors.size();
}
unsigned char magnitudeCount() {
return _magnitudes.size();
}
String magnitudeName(unsigned char index) {
if (index < _magnitudes.size()) {
sensor_magnitude_t magnitude = _magnitudes[index];
return magnitude.sensor->slot(magnitude.local);
}
return String();
}
unsigned char magnitudeType(unsigned char index) {
if (index < _magnitudes.size()) {
return int(_magnitudes[index].type);
}
return MAGNITUDE_NONE;
}
void sensorInit() {
#if DHT_SUPPORT
#include "sensors/DHTSensor.h"
sensorRegister(new DHTSensor(DHT_PIN, DHT_TYPE, DHT_PULLUP));
#endif
#if DS18B20_SUPPORT
#include "sensors/DallasSensor.h"
sensorRegister(new DallasSensor(DS18B20_PIN, SENSOR_READ_INTERVAL, DS18B20_PULLUP));
#endif
#if SI7021_SUPPORT
#include "sensors/SI7021Sensor.h"
sensorRegister(new SI7021Sensor(SI7021_ADDRESS));
#endif
#if BMX280_SUPPORT
#include "sensors/BMX280Sensor.h"
sensorRegister(new BMX280Sensor(BMX280_ADDRESS));
#endif
#if ANALOG_SUPPORT
#include "sensors/AnalogSensor.h"
sensorRegister(new AnalogSensor(ANALOG_PIN, ANALOG_PIN_MODE));
#endif
#if DIGITAL_SUPPORT
#include "sensors/DigitalSensor.h"
sensorRegister(new DigitalSensor(DIGITAL_PIN, DIGITAL_PIN_MODE, DIGITAL_DEFAULT_STATE));
#endif
#if EMON_ANALOG_SUPPORT
#include "sensors/EmonAnalogSensor.h"
sensorRegister(new EmonAnalogSensor(A0, EMON_MAINS_VOLTAGE, EMON_ANALOG_ADC_BITS, EMON_ANALOG_REFERENCE_VOLTAGE, EMON_ANALOG_CURRENT_RATIO));
#endif
#if EMON_ADC121_SUPPORT
#include "sensors/EmonADC121Sensor.h"
sensorRegister(new EmonADC121Sensor(EMON_ADC121_I2C_ADDRESS, EMON_MAINS_VOLTAGE, EMON_ADC121_ADC_BITS, EMON_ADC121_REFERENCE_VOLTAGE, EMON_ADC121_CURRENT_RATIO));
#endif
#if EMON_ADS1X15_SUPPORT
#include "sensors/EmonADS1X15Sensor.h"
sensorRegister(new EmonADS1X15Sensor(EMON_ADS1X15_I2C_ADDRESS, EMON_ADS1X15_ADS1115, EMON_ADS1X15_PORT_MASK, EMON_MAINS_VOLTAGE, EMON_ADS1X15_ADC_BITS, EMON_ADS1X15_REFERENCE_VOLTAGE, EMON_ADS1X15_CURRENT_RATIO));
#endif
#if PMSX003_SUPPORT
#include "sensors/PMSX003Sensor.h"
sensorRegister(new PMSX003Sensor(PMS_RX_PIN, PMS_TX_PIN));
#endif
#if MHZ19_SUPPORT
#include "sensors/MHZ19Sensor.h"
sensorRegister(new MHZ19Sensor(MHZ19_RX_PIN, MHZ19_TX_PIN));
#endif
#if COUNTER_SUPPORT
#include "sensors/EventSensor.h"
sensorRegister(new EventSensor(COUNTER_PIN, COUNTER_PIN_MODE, COUNTER_DEBOUNCE));
_event_sensor_id = sensorCount() - 1;
attachInterrupt(COUNTER_PIN, isrEventSensor, COUNTER_INTERRUPT_MODE);
#endif
}
void sensorSetup() {
// Load sensors
sensorInit();
// Load magnitudes
for (unsigned char i=0; i<_sensors.size(); i++) {
BaseSensor * sensor = _sensors[i];
DEBUG_MSG("[SENSOR] %s\n", sensor->name().c_str());
for (unsigned char k=0; k<sensor->count(); k++) {
magnitude_t type = sensor->type(k);
sensor_magnitude_t new_magnitude;
new_magnitude.sensor = sensor;
new_magnitude.local = k;
new_magnitude.type = type;
new_magnitude.global = _counts[type];
new_magnitude.current = 0;
new_magnitude.filtered = 0;
new_magnitude.reported = 0;
new_magnitude.min_change = 0;
if (type == MAGNITUDE_DIGITAL) {
new_magnitude.filter = new MaxFilter();
} else if (type == MAGNITUDE_EVENTS) {
new_magnitude.filter = new MovingAverageFilter(SENSOR_REPORT_EVERY);
} else {
new_magnitude.filter = new MedianFilter();
}
_magnitudes.push_back(new_magnitude);
DEBUG_MSG("[SENSOR] -> %s:%d\n", _sensorTopic(type).c_str(), _counts[type]);
_counts[type] = _counts[type] + 1;
}
}
#if WEB_SUPPORT
// Websockets
wsOnSendRegister(_sensorWebSocketOnSend);
wsOnAfterParseRegister(_sensorConfigure);
// API
_sensorAPISetup();
#endif
}
void sensorLoop() {
static unsigned long last_update = 0;
static unsigned long report_count = 0;
// Tick hook
_sensorTick();
// Check if we should read new data
if (millis() - last_update > SENSOR_READ_INTERVAL) {
last_update = millis();
report_count = (report_count + 1) % SENSOR_REPORT_EVERY;
double current;
double filtered;
char buffer[64];
// Pre-read hook
_sensorPre();
// Get readings
for (unsigned char i=0; i<_magnitudes.size(); i++) {
sensor_magnitude_t magnitude = _magnitudes[i];
if (magnitude.sensor->status()) {
unsigned char decimals = _sensorDecimals(magnitude.type);
current = magnitude.sensor->value(magnitude.local);
magnitude.filter->add(current);
// Special case
if (magnitude.type == MAGNITUDE_EVENTS) current = magnitude.filter->result();
current = _sensorProcess(magnitude.type, current);
_magnitudes[i].current = current;
// Debug
#if true
{
dtostrf(current, 1-sizeof(buffer), decimals, buffer);
DEBUG_MSG("[SENSOR] %s - %s: %s%s\n",
magnitude.sensor->slot(magnitude.local).c_str(),
_sensorTopic(magnitude.type).c_str(),
buffer,
_sensorUnits(magnitude.type).c_str()
);
}
#endif
// Time to report (we do it every SENSOR_REPORT_EVERY readings)
if (report_count == 0) {
filtered = magnitude.filter->result();
magnitude.filter->reset();
filtered = _sensorProcess(magnitude.type, filtered);
_magnitudes[i].filtered = filtered;
// Check if there is a minimum change threshold to report
if (fabs(filtered - magnitude.reported) >= magnitude.min_change) {
_magnitudes[i].reported = filtered;
dtostrf(filtered, 1-sizeof(buffer), decimals, buffer);
#if MQTT_SUPPORT
if (SENSOR_USE_INDEX || (_counts[magnitude.type] > 1)) {
mqttSend(_sensorTopic(magnitude.type).c_str(), magnitude.global, buffer);
} else {
mqttSend(_sensorTopic(magnitude.type).c_str(), buffer);
}
#endif
#if INFLUXDB_SUPPORT
if (SENSOR_USE_INDEX || (_counts[magnitude.type] > 1)) {
idbSend(_sensorTopic(magnitude.type).c_str(), magnitude.global, buffer);
} else {
idbSend(_sensorTopic(magnitude.type).c_str(), buffer);
}
#endif
#if DOMOTICZ_SUPPORT
{
char key[15];
snprintf_P(key, sizeof(key), PSTR("dczSensor%d"), i);
if (magnitude.type == MAGNITUDE_HUMIDITY) {
int status;
if (filtered > 70) {
status = HUMIDITY_WET;
} else if (filtered > 45) {
status = HUMIDITY_COMFORTABLE;
} else if (filtered > 30) {
status = HUMIDITY_NORMAL;
} else {
status = HUMIDITY_DRY;
}
char status_buf[5];
itoa(status, status_buf, 10);
domoticzSend(key, buffer, status_buf);
} else {
domoticzSend(key, 0, buffer);
}
}
#endif
} // if (fabs(filtered - magnitude.reported) >= magnitude.min_change)
} // if (report_count == 0)
} // if (magnitude.sensor->status())
} // for (unsigned char i=0; i<_magnitudes.size(); i++)
// Post-read hook
_sensorPost();
#if WEB_SUPPORT
wsSend(_sensorWebSocketOnSend);
#endif
}
}