mirror of
https://github.com/miguel5612/MQSensorsLib.git
synced 2025-11-04 09:06:01 +03:00
84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/*
|
|
MQUnifiedsensor Library - reading an MQ135
|
|
|
|
Demonstrates the use a MQ135 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 135 //MQ135
|
|
//#define calibration_button 13 //Pin to calibrate your sensor
|
|
|
|
//Declare Sensor
|
|
MQUnifiedsensor MQ135(pin, type);
|
|
|
|
//Variables
|
|
float CO, Alcohol, CO2, Tolueno, NH4, Acetona;
|
|
|
|
void setup() {
|
|
Serial.begin(9600); //Init serial port
|
|
//init the sensor
|
|
/***************************** MQInicializar****************************************
|
|
Input: pin, type
|
|
Output:
|
|
Remarks: This function create the sensor object.
|
|
************************************************************************************/
|
|
MQ135.inicializar();
|
|
//pinMode(calibration_button, INPUT);
|
|
}
|
|
|
|
void loop() {
|
|
MQ135.update(); // Update data, the arduino will be read the voltaje in the analog pin
|
|
/*
|
|
//Si el valor de RL es diferente a 10K por favor asigna tu valor de RL con el siguiente metodo:
|
|
MQ135.setRL(10);
|
|
*/
|
|
/*
|
|
//Rutina de calibracion - Uncomment if you need (setup too and header)
|
|
if(calibration_button)
|
|
{
|
|
float R0 = MQ135.calibrate();
|
|
MQ135.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 = MQ135.readSensor("", true); // Return NH4 concentration
|
|
// Options, uncomment where you need
|
|
CO = MQ135.readSensor("CO"); // Return CO concentration
|
|
Alcohol = MQ135.readSensor("Alcohol"); // Return Alcohol concentration
|
|
CO2 = MQ135.readSensor("CO2"); // Return CO2 concentration
|
|
Tolueno = MQ135.readSensor("Tolueno"); // Return Tolueno concentration
|
|
NH4 = MQ135.readSensor("NH4"); // Return NH4 concentration
|
|
Acetona = MQ135.readSensor("Acetona"); // Return Acetona concentration
|
|
|
|
Serial.println("***************************");
|
|
Serial.println("Lectures for MQ-135");
|
|
Serial.print("Volt: ");Serial.print(MQ135.getVoltage(false));Serial.println(" V");
|
|
Serial.print("R0: ");Serial.print(MQ135.getR0());Serial.println(" Ohm");
|
|
Serial.print("CO: ");Serial.print(CO,2);Serial.println(" ppm");
|
|
Serial.print("Alcohol: ");Serial.print(Alcohol,2);Serial.println(" ppm");
|
|
Serial.print("CO2: ");Serial.print(CO2,2);Serial.println(" ppm");
|
|
Serial.print("Tolueno: ");Serial.print(Tolueno,2);Serial.println(" ppm");
|
|
Serial.print("NH4: ");Serial.print(NH4,2);Serial.println(" ppm");
|
|
Serial.print("Acetona: ");Serial.print(Acetona,2);Serial.println(" ppm");
|
|
Serial.println("***************************");
|
|
}
|