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https://github.com/miguel5612/MQSensorsLib.git
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Added MQ-8 and MQ-9
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miguel5612
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@ -1,7 +1,7 @@
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/*
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MQUnifiedsensor Library - reading an MQ131
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MQUnifiedsensor Library - reading an MQ9
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Demonstrates the use a MQ131 sensor.
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Demonstrates the use a MQ9 sensor.
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Library originally added 01 may 2019
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by Miguel A Califa, Yersson Carrillo, Ghiordy Contreras, Mario Rodriguez
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@ -9,6 +9,10 @@
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modified 23 May 2019
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by Miguel Califa
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Updated library usage
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modified 26 March 2020
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by Miguel Califa
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This example code is in the public domain.
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*/
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@ -17,61 +21,55 @@
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#include <MQUnifiedsensor.h>
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//Definitions
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#define placa "Arduino UNO"
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#define Voltage_Resolution 5
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#define pin A0 //Analog input 0 of your arduino
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#define type 131 //MQ131
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#define type "MQ-8" //MQ9
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#define ADC_Bit_Resolution 10 // For arduino UNO/MEGA/NANO
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//#define calibration_button 13 //Pin to calibrate your sensor
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//Declare Sensor
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MQUnifiedsensor MQ131(pin, type);
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//Variables
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float NOx, CL2, O3;
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MQUnifiedsensor MQ9(placa, Voltage_Resolution, ADC_Bit_Resolution, pin, type);
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void setup() {
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//Init the serial port communication - to debug the library
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Serial.begin(9600); //Init serial port
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//init the sensor
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/***************************** MQInicializar****************************************
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Input: pin, type
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Output:
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Remarks: This function create the sensor object.
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************************************************************************************/
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MQ131.inicializar();
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//pinMode(calibration_button, INPUT);
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//Set math model to calculate the PPM concentration and the value of constants
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MQ9.setRegressionMethod("Exponential"); //_PPM = a*ratio^b
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MQ9.setA(1000.5); MQ9.setB(-2.186); // Configurate the ecuation values to get LPG concentration
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/*
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Exponential regression:
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GAS | a | b
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LPG | 1000.5 | -2.186
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CH4 | 4269.6 | -2.648
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CO | 599.65 | -2.244
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*/
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// Calibration setup
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MQ9.setR0(9.42857143);
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/*
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//If the RL value is different from 10K please assign your RL value with the following method:
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MQ9.setRL(10);
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*/
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/***************************** MQ Init ********************************************/
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//Remarks: Configure the pin of arduino as input.
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/************************************************************************************/
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MQ9.init();
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/***************************** MQ Init ********************************************/
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//Input: setup flag, if this function are on setup will print the headers (Optional - Default value: False)
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//Output: print on serial port the information about sensor and sensor readings
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//Remarks: Configure the pin of arduino as input.
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/************************************************************************************/
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MQ9.serialDebug(true);
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}
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void loop() {
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MQ131.update(); // Update data, the arduino will be read the voltaje in the analog pin
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/*
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// Si el valor de RL es diferente a 10K por favor asigna tu valor de RL con el siguiente metodo:
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MQ131.setRL(10);
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*/
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/*
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//Rutina de calibracion - Uncomment if you need (setup too and header)
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if(calibration_button)
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{
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float R0 = MQ131.calibrate();
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MQ131.setR0(R0);
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}
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*/
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/***************************** MQReadSensor ****************************************
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Input: Gas - Serial print flag
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Output: Value in PPM
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Remarks: This function use readPPM to read the value in PPM the gas in the air.
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************************************************************************************/
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//Read the sensor and print in serial port
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//Lecture will be saved in lecture variable
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//float lecture = MQ131.readSensor("", true); // Return O3 concentration
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// Options, uncomment where you need
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NOx = MQ131.readSensor("NOx"); // Return NOx concentration
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CL2 = MQ131.readSensor("CL2"); // Return CL2 concentration
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O3 = MQ131.readSensor("O3"); // Return O3 concentration
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Serial.println("***************************");
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Serial.println("Lectures for MQ-131");
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Serial.print("Volt: ");Serial.print(MQ131.getVoltage(false));Serial.println(" V");
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Serial.print("R0: ");Serial.print(MQ131.getR0());Serial.println(" Ohm");
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Serial.print("NOx: ");Serial.print(NOx,2);Serial.println(" ppm");
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Serial.print("CL2: ");Serial.print(CL2,2);Serial.println(" ppm");
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Serial.print("O3: ");Serial.print(O3,2);Serial.println(" ppm");
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Serial.println("***************************");
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}
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MQ9.update(); // Update data, the arduino will be read the voltage on the analog pin
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MQ9.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
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MQ9.serialDebug(); // Will print the table on the serial port
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delay(500); //Sampling frequency
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}
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@ -9,6 +9,10 @@
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modified 23 May 2019
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by Miguel Califa
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Updated library usage
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modified 26 March 2020
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by Miguel Califa
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This example code is in the public domain.
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*/
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@ -17,65 +21,57 @@
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#include <MQUnifiedsensor.h>
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//Definitions
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#define placa "Arduino UNO"
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#define Voltage_Resolution 5
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#define pin A0 //Analog input 0 of your arduino
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#define type 8 //MQ8
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#define type "MQ-8" //MQ8
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#define ADC_Bit_Resolution 10 // For arduino UNO/MEGA/NANO
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//#define calibration_button 13 //Pin to calibrate your sensor
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//Declare Sensor
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MQUnifiedsensor MQ8(pin, type);
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//Variables
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float H2, LPG, CH4, CO, Alcohol;
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MQUnifiedsensor MQ8(placa, Voltage_Resolution, ADC_Bit_Resolution, pin, type);
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void setup() {
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//Init the serial port communication - to debug the library
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Serial.begin(9600); //Init serial port
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//init the sensor
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/***************************** MQInicializar****************************************
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Input: pin, type
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Output:
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Remarks: This function create the sensor object.
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************************************************************************************/
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MQ8.inicializar();
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//pinMode(calibration_button, INPUT);
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//Set math model to calculate the PPM concentration and the value of constants
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MQ8.setRegressionMethod("Exponential"); //_PPM = a*ratio^b
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MQ8.setA(976.97); MQ8.setB(-0.688); // Configurate the ecuation values to get H2 concentration
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/*
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Exponential regression:
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GAS | a | b
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H2 | 976.97 | -0.688
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LPG | 10000000 | -3.123
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CH4 | 80000000000000 | -6.666
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CO | 2000000000000000000 | -8.074
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Alcohol | 76101 | -1.86
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*/
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// Calibration setup
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MQ8.setR0(1);
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/*
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//If the RL value is different from 10K please assign your RL value with the following method:
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MQ8.setRL(10);
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*/
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/***************************** MQ Init ********************************************/
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//Remarks: Configure the pin of arduino as input.
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/************************************************************************************/
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MQ8.init();
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/***************************** MQ Init ********************************************/
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//Input: setup flag, if this function are on setup will print the headers (Optional - Default value: False)
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//Output: print on serial port the information about sensor and sensor readings
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//Remarks: Configure the pin of arduino as input.
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/************************************************************************************/
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MQ8.serialDebug(true);
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}
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void loop() {
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MQ8.update(); // Update data, the arduino will be read the voltaje in the analog pin
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/*
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//Si el valor de RL es diferente a 10K por favor asigna tu valor de RL con el siguiente metodo:
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MQ8.setRL(10);
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*/
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/*
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//Rutina de calibracion - Uncomment if you need (setup too and header)
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if(calibration_button)
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{
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float R0 = MQ8.calibrate();
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MQ8.setR0(R0);
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}
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*/
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/***************************** MQReadSensor ****************************************
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Input: Gas - Serial print flag
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Output: Value in PPM
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Remarks: This function use readPPM to read the value in PPM the gas in the air.
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************************************************************************************/
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//Read the sensor and print in serial port
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//Lecture will be saved in lecture variable
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//float lecture = MQ8.readSensor("", true); // Return H2 concentration
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// Options, uncomment where you need
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H2 = MQ8.readSensor("H2"); // Return CH4 concentration
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LPG = MQ8.readSensor("LPG"); // Return LPG concentration
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CH4 = MQ8.readSensor("CH4"); // Return CH4 concentration
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CO = MQ8.readSensor("CO"); // Return CO concentration
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Alcohol = MQ8.readSensor("Alcohol"); // Return Alcohol concentration
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Serial.println("***************************");
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Serial.println("Lectures for MQ-8");
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Serial.print("Volt: ");Serial.print(MQ8.getVoltage(false));Serial.println(" V");
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Serial.print("R0: ");Serial.print(MQ8.getR0());Serial.println(" Ohm");
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Serial.print("H2: ");Serial.print(H2,2);Serial.println(" ppm");
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Serial.print("LPG: ");Serial.print(LPG,2);Serial.println(" ppm");
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Serial.print("CH4: ");Serial.print(CH4,2);Serial.println(" ppm");
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Serial.print("CO: ");Serial.print(CO,2);Serial.println(" ppm");
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Serial.print("Alcohol: ");Serial.print(Alcohol,2);Serial.println(" ppm");
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Serial.println("***************************");
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}
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MQ8.update(); // Update data, the arduino will be read the voltage on the analog pin
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MQ8.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
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MQ8.serialDebug(); // Will print the table on the serial port
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delay(500); //Sampling frequency
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}
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@ -9,6 +9,10 @@
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modified 23 May 2019
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by Miguel Califa
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Updated library usage
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modified 26 March 2020
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by Miguel Califa
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This example code is in the public domain.
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*/
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@ -17,61 +21,55 @@
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#include <MQUnifiedsensor.h>
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//Definitions
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#define placa "Arduino UNO"
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#define Voltage_Resolution 5
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#define pin A0 //Analog input 0 of your arduino
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#define type 9 //MQ9
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#define type "MQ-9" //MQ9
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#define ADC_Bit_Resolution 10 // For arduino UNO/MEGA/NANO
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//#define calibration_button 13 //Pin to calibrate your sensor
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//Declare Sensor
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MQUnifiedsensor MQ9(pin, type);
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//Variables
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float CO, CH4, LPG;
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MQUnifiedsensor MQ9(placa, Voltage_Resolution, ADC_Bit_Resolution, pin, type);
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void setup() {
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//Init the serial port communication - to debug the library
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Serial.begin(9600); //Init serial port
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//init the sensor
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/***************************** MQInicializar****************************************
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Input: pin, type
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Output:
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Remarks: This function create the sensor object.
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************************************************************************************/
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MQ9.inicializar();
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//pinMode(calibration_button, INPUT);
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//Set math model to calculate the PPM concentration and the value of constants
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MQ9.setRegressionMethod("Exponential"); //_PPM = a*ratio^b
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MQ9.setA(1000.5); MQ9.setB(-2.186); // Configurate the ecuation values to get LPG concentration
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/*
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Exponential regression:
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GAS | a | b
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LPG | 1000.5 | -2.186
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CH4 | 4269.6 | -2.648
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CO | 599.65 | -2.244
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*/
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// Calibration setup
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MQ9.setR0(9.42857143);
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/*
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//If the RL value is different from 10K please assign your RL value with the following method:
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MQ9.setRL(10);
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*/
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/***************************** MQ Init ********************************************/
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//Remarks: Configure the pin of arduino as input.
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/************************************************************************************/
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MQ9.init();
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/***************************** MQ Init ********************************************/
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//Input: setup flag, if this function are on setup will print the headers (Optional - Default value: False)
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//Output: print on serial port the information about sensor and sensor readings
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//Remarks: Configure the pin of arduino as input.
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/************************************************************************************/
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MQ9.serialDebug(true);
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}
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void loop() {
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MQ9.update(); // Update data, the arduino will be read the voltaje in the analog pin
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/*
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//Si el valor de RL es diferente a 10K por favor asigna tu valor de RL con el siguiente metodo:
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MQ9.setRL(10);
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*/
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/*
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//Rutina de calibracion - Uncomment if you need (setup too and header)
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if(calibration_button)
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{
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float R0 = MQ9.calibrate();
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MQ9.setR0(R0);
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}
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*/
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/***************************** MQReadSensor ****************************************
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Input: Gas - Serial print flag
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Output: Value in PPM
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Remarks: This function use readPPM to read the value in PPM the gas in the air.
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************************************************************************************/
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//Read the sensor and print in serial port
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//Lecture will be saved in lecture variable
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//float lecture = MQ9.readSensor("", true); // Return LPG concentration
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// Options, uncomment where you need
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LPG = MQ9.readSensor("LPG"); // Return LPG concentration
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CH4 = MQ9.readSensor("CH4"); // Return CH4 concentration
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CO = MQ9.readSensor("CO"); // Return CO concentration
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Serial.println("***************************");
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Serial.println("Lectures for MQ-9");
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Serial.print("Volt: ");Serial.print(MQ9.getVoltage(false));Serial.println(" V");
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Serial.print("R0: ");Serial.print(MQ9.getR0());Serial.println(" Ohm");
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Serial.print("CO: ");Serial.print(CO,2);Serial.println(" ppm");
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Serial.print("LPG: ");Serial.print(LPG,2);Serial.println(" ppm");
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Serial.print("CH4: ");Serial.print(CH4,2);Serial.println(" ppm");
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Serial.println("***************************");
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}
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MQ9.update(); // Update data, the arduino will be read the voltage on the analog pin
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MQ9.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
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MQ9.serialDebug(); // Will print the table on the serial port
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delay(500); //Sampling frequency
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}
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