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/*
MQUnifiedsensor Library - calibrating an MQ2
Demonstrates the use a MQ2 sensor.
Library originally added 01 may 2019
by Miguel A Califa, Yersson Carrillo, Ghiordy Contreras, Mario Rodriguez
Added example
modified 27 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 2 //MQ2
//Declare Sensor
MQUnifiedsensor MQ2(pin, type);
unsigned long contador = 0;
void setup() {
//Init serial port
Serial.begin(115200);
//init the sensor
MQ2.inicializar();
//Print in serial monitor
Serial.print("MQ2 - Calibracion");
Serial.print("Note - Make sure you are in a clean room and the sensor has pre-heated almost 4 hours");
Serial.print("Autonumeric, lecture");
}
void loop() {
//Read the sensor and print in serial port
int lecture = MQ2.calibrate();
//Print in serial monitor
Serial.print(String(contador) + ",");
Serial.println(lecture);
//Increment counter
contador++;
//Wait to measure next sample
delay(400);
}