mirror of
https://github.com/miguel5612/MQSensorsLib.git
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143 lines
3.4 KiB
C++
143 lines
3.4 KiB
C++
/*
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MQUnifiedsensor Library - calibrating an MQ2 to MQ9
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Demonstrates the use a MQ2 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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Added example
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modified 27 May 2019
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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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//Include the library
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#include <MQUnifiedsensor.h>
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//And lcd library
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#include <Wire.h>
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#include <LiquidCrystal_I2C.h>
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// Set the LCD address to 0x27 for a 16 chars and 2 line display
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LiquidCrystal_I2C lcd(0x27, 16, 2);
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//Definitions
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#define pin2 A2 //Analog input 2 of your arduino
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#define pin3 A3 //Analog input 3 of your arduino
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#define pin4 A4 //Analog input 4 of your arduino
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#define pin5 A5 //Analog input 5 of your arduino
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#define pin6 A6 //Analog input 6 of your arduino
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#define pin7 A7 //Analog input 7 of your arduino
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#define pin8 A8 //Analog input 8 of your arduino
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#define pin9 A9 //Analog input 9 of your arduino
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//Declare Sensor
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MQUnifiedsensor MQ2(pin2, 2);
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MQUnifiedsensor MQ3(pin3, 2);
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MQUnifiedsensor MQ4(pin4, 2);
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MQUnifiedsensor MQ5(pin5, 2);
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MQUnifiedsensor MQ6(pin6, 2);
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MQUnifiedsensor MQ7(pin7, 2);
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MQUnifiedsensor MQ8(pin8, 2);
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MQUnifiedsensor MQ9(pin9, 2);
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unsigned long contador = 0;
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void setup() {
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//Init serial port
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Serial.begin(115200);
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// initialize the LCD
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lcd.begin();
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// Turn on the blacklight and print a message.
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lcd.backlight();
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//Welcome message
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lcd.clear();
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lcd.setCursor(0,0);
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lcd.print("MQ2 to MQ9");
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lcd.setCursor(0,1);
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lcd.print(" Calibracion");
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//init the sensor
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MQ2.inicializar();
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MQ3.inicializar();
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MQ4.inicializar();
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MQ5.inicializar();
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MQ6.inicializar();
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MQ7.inicializar();
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MQ8.inicializar();
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//MQ9.inicializar();
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//Print in serial monitor
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Serial.println("MQ2 to MQ9 - Calibracion");
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Serial.println("Note - Make sure you are in a clean room and the sensor has pre-heated almost 4 hours");
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Serial.println("Autonumeric, MQ2(PPM), MQ3(PPM), MQ4(PPM), MQ5(PPM), MQ6(PPM), MQ7(PPM)");
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//Wait one second to continue
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delay(1000);
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}
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void loop() {
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//Read the sensor
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int lecture2 = MQ2.calibrate();
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int lecture3 = MQ3.calibrate();
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int lecture4 = MQ4.calibrate();
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int lecture5 = MQ5.calibrate();
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int lecture6 = MQ6.calibrate();
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int lecture7 = MQ7.calibrate();
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int lecture8 = MQ8.calibrate();
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int lecture9 = MQ9.calibrate();
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//Print in serial monitor
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char out[40];
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snprintf(out, 30, "%d,%d,%d,%d,%d,%d,%d,%d", contador, lecture2, lecture3, lecture4, lecture5, lecture6, lecture7, lecture8, lecture9);
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Serial.println(out);
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//Print in LCD
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lcd.clear();
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lcd.setCursor(0,0);
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lcd.print("MQ2: ");
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lcd.print(lecture2);
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lcd.print(" PPM");
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lcd.setCursor(0,1);
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lcd.print("MQ3: ");
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lcd.print(lecture3);
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lcd.print(" PPM");
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delay(2000);
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lcd.clear();
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lcd.setCursor(0,0);
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lcd.print("MQ4: ");
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lcd.print(lecture4);
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lcd.print(" PPM");
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lcd.setCursor(0,1);
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lcd.print("MQ5: ");
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lcd.print(lecture5);
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lcd.print(" PPM");
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delay(2000);
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lcd.clear();
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lcd.setCursor(0,0);
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lcd.print("MQ6: ");
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lcd.print(lecture6);
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lcd.print(" PPM");
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lcd.setCursor(0,1);
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lcd.print("MQ7: ");
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lcd.print(lecture7);
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lcd.print(" PPM");
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delay(2000);
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lcd.clear();
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lcd.setCursor(0,0);
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lcd.print("MQ8: ");
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lcd.print(lecture2);
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lcd.print(" PPM");
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lcd.setCursor(0,1);
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lcd.print("MQ8: ");
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lcd.print(lecture8);
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lcd.print(" PPM");
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delay(2000);
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//Increment counter
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contador++;
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//Wait to measure next sample
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delay(400);
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}
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