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.
147 lines
4.3 KiB
147 lines
4.3 KiB
// -----------------------------------------------------------------------------
|
|
// PMSX003 Dust Sensor
|
|
// Uses SoftwareSerial library
|
|
// Contribution by Òscar Rovira López
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
#include "Arduino.h"
|
|
#include "BaseSensor.h"
|
|
|
|
#include <PMS.h>
|
|
#include <SoftwareSerial.h>
|
|
|
|
class PMSX003Sensor : public BaseSensor {
|
|
|
|
public:
|
|
|
|
// ---------------------------------------------------------------------
|
|
// Public
|
|
// ---------------------------------------------------------------------
|
|
|
|
PMSX003Sensor(): BaseSensor() {
|
|
_count = 3;
|
|
_sensor_id = SENSOR_PMSX003_ID;
|
|
}
|
|
|
|
void setRX(unsigned char pin_rx) {
|
|
if (_pin_rx == pin_rx) return;
|
|
_pin_rx = pin_rx;
|
|
_dirty = true;
|
|
}
|
|
|
|
void setTX(unsigned char pin_tx) {
|
|
if (_pin_tx == pin_tx) return;
|
|
_pin_tx = pin_tx;
|
|
_dirty = true;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------
|
|
|
|
unsigned char getRX() {
|
|
return _pin_rx;
|
|
}
|
|
|
|
unsigned char getTX() {
|
|
return _pin_tx;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------
|
|
// Sensor API
|
|
// ---------------------------------------------------------------------
|
|
|
|
// Initialization method, must be idempotent
|
|
void begin() {
|
|
|
|
if (!_dirty) return;
|
|
_dirty = false;
|
|
|
|
if (_serial) delete _serial;
|
|
if (_pms) delete _pms;
|
|
|
|
_serial = new SoftwareSerial(_pin_rx, _pin_tx, false, 256);
|
|
_serial->begin(9600);
|
|
_pms = new PMS(* _serial);
|
|
_pms->passiveMode();
|
|
|
|
_startTime = millis();
|
|
|
|
}
|
|
|
|
// Descriptive name of the sensor
|
|
String description() {
|
|
char buffer[28];
|
|
snprintf(buffer, sizeof(buffer), "PMSX003 @ SwSerial(%i,%i)", _pin_rx, _pin_tx);
|
|
return String(buffer);
|
|
}
|
|
|
|
// Descriptive name of the slot # index
|
|
String slot(unsigned char index) {
|
|
if (index < _count) {
|
|
_error = SENSOR_ERROR_OK;
|
|
char buffer[36];
|
|
if (index == 0) snprintf(buffer, sizeof(buffer), "PM1.0 @ PMSX003 @ SwSerial(%i,%i)", _pin_rx, _pin_tx);
|
|
if (index == 1) snprintf(buffer, sizeof(buffer), "PM2.5 @ PMSX003 @ SwSerial(%i,%i)", _pin_rx, _pin_tx);
|
|
if (index == 2) snprintf(buffer, sizeof(buffer), "PM10 @ PMSX003 @ SwSerial(%i,%i)", _pin_rx, _pin_tx);
|
|
return String(buffer);
|
|
}
|
|
_error = SENSOR_ERROR_OUT_OF_RANGE;
|
|
return String();
|
|
}
|
|
|
|
// Type for slot # index
|
|
magnitude_t type(unsigned char index) {
|
|
if (index < _count) {
|
|
_error = SENSOR_ERROR_OK;
|
|
if (index == 0) return MAGNITUDE_PM1dot0;
|
|
if (index == 1) return MAGNITUDE_PM2dot5;
|
|
if (index == 2) return MAGNITUDE_PM10;
|
|
}
|
|
_error = SENSOR_ERROR_OUT_OF_RANGE;
|
|
return MAGNITUDE_NONE;
|
|
}
|
|
|
|
void pre() {
|
|
|
|
if (millis() - _startTime < 30000) {
|
|
_error = SENSOR_ERROR_WARM_UP;
|
|
return;
|
|
}
|
|
|
|
_error = SENSOR_ERROR_OK;
|
|
|
|
if(_pms->read(_data)) {
|
|
_pm1dot0 = _data.PM_AE_UG_1_0;
|
|
_pm2dot5 = _data.PM_AE_UG_2_5;
|
|
_pm10 = _data.PM_AE_UG_10_0;
|
|
}
|
|
|
|
_pms->requestRead();
|
|
|
|
}
|
|
|
|
// Current value for slot # index
|
|
double value(unsigned char index) {
|
|
if (index < _count) {
|
|
_error = SENSOR_ERROR_OK;
|
|
if(index == 0) return _pm1dot0;
|
|
if(index == 1) return _pm2dot5;
|
|
if(index == 2) return _pm10;
|
|
}
|
|
_error = SENSOR_ERROR_OUT_OF_RANGE;
|
|
return 0;
|
|
}
|
|
|
|
protected:
|
|
unsigned int _pm1dot0;
|
|
unsigned int _pm2dot5;
|
|
unsigned int _pm10;
|
|
unsigned int _pin_rx;
|
|
unsigned int _pin_tx;
|
|
unsigned long _startTime;
|
|
SoftwareSerial * _serial;
|
|
PMS * _pms;
|
|
PMS::DATA _data;
|
|
|
|
};
|