2019-09-28 11:18:28 -05:00

80 lines
2.6 KiB
C++

/*
MQUnifiedsensor Library - reading an MQ309
Demonstrates the use a MQ309 sensor.
Library originally added 01 may 2019
by Miguel A Califa, Yersson Carrillo, Ghiordy Contreras, Mario Rodriguez
Added example
modified 23 May 2019
by Miguel Califa
This example code is in the public domain.
*/
//Include the library
#include <MQUnifiedsensor.h>
//Definitions
#define pin A0 //Analog input 0 of your arduino
#define type 309 //MQ309
//#define calibration_button 13 //Pin to calibrate your sensor
//Declare Sensor
MQUnifiedsensor MQ309(pin, type);
//Variables
float H2, CH4, CO, Alcohol;
void setup() {
Serial.begin(9600); //Init serial port
//init the sensor
/***************************** MQInicializar****************************************
Input: pin, type
Output:
Remarks: This function create the sensor object.
************************************************************************************/
MQ309.inicializar();
//pinMode(calibration_button, INPUT);
}
void loop() {
MQ309.update();
/*
//Si el valor de RL es diferente a 10K por favor asigna tu valor de RL con el siguiente metodo:
MQ309.setRL(10);
*/
/*
//Rutina de calibracion - Uncomment if you need (setup too and header)
if(calibration_button)
{
float R0 = MQ309.calibrate();
MQ309.setR0(R0);
}
*/
/***************************** MQReadSensor ****************************************
Input: Gas - Serial print flag
Output: Value in PPM
Remarks: This function use readPPM to read the value in PPM the gas in the air.
************************************************************************************/
//Read the sensor and print in serial port
//Lecture will be saved in lecture variable
//float lecture = MQ309.readSensor("", true); // Return CO concentration
// Options, uncomment where you need
H2 = MQ309.readSensor("H2"); // Return H2 concentration
CH4 = MQ309.readSensor("CH4"); // Return CH4 concentration
CO = MQ309.readSensor("CO"); // Return CO concentration
Alcohol = MQ309.readSensor("Alcohol"); // Return Alcohol concentration
Serial.println("***************************");
Serial.println("Lectures for MQ-309");
Serial.print("Volt: ");Serial.print(MQ309.getVoltage(false));Serial.println(" V");
Serial.print("R0: ");Serial.print(MQ309.getR0());Serial.println(" Ohm");
Serial.print("H2: ");Serial.print(H2,2);Serial.println(" ppm");
Serial.print("CH4: ");Serial.print(CH4,2);Serial.println(" ppm");
Serial.print("CO: ");Serial.print(CO,2);Serial.println(" ppm");
Serial.print("Alcohol: ");Serial.print(Alcohol,2);Serial.println(" ppm");
Serial.println("***************************");
}