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Changed variable types

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miguel5612
2020-03-27 22:54:05 -05:00
parent 9a1974033e
commit 3d1bb90e38
17 changed files with 145 additions and 256 deletions
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115
examples/MQ-Board/MQ-Board.ino
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@ -29,7 +29,15 @@
#define pin7 A7 //Analog input 7 of your arduino
#define pin8 A8 //Analog input 8 of your arduino
#define pin9 A9 //Analog input 9 of your arduino
//#define calibration_button 13 //Pin to calibrate your sensor
#define RatioMQ2CleanAir 9.83 //RS / R0 = 9.83 ppm
#define RatioMQ3CleanAir 60 //RS / R0 = 60 ppm
#define RatioMQ4CleanAir 4.4 //RS / R0 = 4.4 ppm
#define RatioMQ5CleanAir 6.5 //RS / R0 = 6.5 ppm
#define RatioMQ6CleanAir 10 //RS / R0 = 10 ppm
#define RatioMQ7CleanAir 27.5 //RS / R0 = 27.5 ppm
#define RatioMQ8CleanAir 70 //RS / R0 = 70 ppm
#define RatioMQ9CleanAir 9.6 //RS / R0 = 9.6 ppm
//Declare Sensor
MQUnifiedsensor MQ2(placa, Voltage_Resolution, ADC_Bit_Resolution, pin2, type);
@ -87,8 +95,75 @@ void setup() {
MQ9.setRegressionMethod(1); //_PPM = a*ratio^b
MQ9.setA(1000.5); MQ9.setB(-2.186); // Configurate the ecuation values to get LPG concentration
MQ9.setR0(9.42857143);
/***************************** MQ CAlibration ********************************************/
// Explanation:
// In this routine the sensor will measure the resistance of the sensor supposing before was pre-heated
// and now is on clean air (Calibration conditions), and it will setup R0 value.
// We recomend execute this routine only on setup or on the laboratory and save on the eeprom of your arduino
// This routine not need to execute to every restart, you can load your R0 if you know the value
// Acknowledgements: https://jayconsystems.com/blog/understanding-a-gas-sensor
Serial.print("Calibrating please wait.");
float MQ2calcR0 = 0,
MQ3calcR0 = 0,
MQ4calcR0 = 0,
MQ5calcR0 = 0,
MQ6calcR0 = 0,
MQ7calcR0 = 0,
MQ8calcR0 = 0,
MQ9calcR0 = 0;
for(int i = 0; i<=20; i ++)
{
//Update the voltage lectures
MQ2.update();
MQ3.update();
MQ4.update();
MQ5.update();
MQ6.update();
MQ7.update();
MQ8.update();
MQ9.update();
MQ2calcR0 += MQ2.calibrate(RatioMQ2CleanAir);
MQ3calcR0 += MQ2.calibrate(RatioMQ3CleanAir);
MQ4calcR0 += MQ2.calibrate(RatioMQ4CleanAir);
MQ5calcR0 += MQ2.calibrate(RatioMQ5CleanAir);
MQ6calcR0 += MQ2.calibrate(RatioMQ6CleanAir);
MQ7calcR0 += MQ2.calibrate(RatioMQ7CleanAir);
MQ8calcR0 += MQ2.calibrate(RatioMQ8CleanAir);
MQ9calcR0 += MQ2.calibrate(RatioMQ9CleanAir);
Serial.print(".");
}
MQ2.setR0(MQ2calcR0/20);
MQ3.setR0(MQ3calcR0/20);
MQ4.setR0(MQ4calcR0/20);
MQ5.setR0(MQ5calcR0/20);
MQ6.setR0(MQ6calcR0/20);
MQ7.setR0(MQ7calcR0/20);
MQ8.setR0(MQ8calcR0/20);
MQ9.setR0(MQ9calcR0/20);
Serial.println(" done!.");
Serial.print("Valores de R0 para cada sensor (MQ2 - MQ9):");
Serial.print(MQ2calcR0/10); Serial.print(" | ");
Serial.print(MQ3calcR0/10); Serial.print(" | ");
Serial.print(MQ4calcR0/10); Serial.print(" | ");
Serial.print(MQ5calcR0/10); Serial.print(" | ");
Serial.print(MQ6calcR0/10); Serial.print(" | ");
Serial.print(MQ7calcR0/10); Serial.print(" | ");
Serial.print(MQ8calcR0/10); Serial.print(" | ");
Serial.print(MQ9calcR0/10); Serial.println(" |");
if(isinf(MQ2calcR0) || isinf(MQ3calcR0) || isinf(MQ4calcR0) || isinf(MQ5calcR0) || isinf(MQ6calcR0) || isinf(MQ7calcR0) || isinf(MQ8calcR0) || isinf(MQ9calcR0)) {Serial.println("Warning: Conection issue founded, R0 is infite (Open circuit detected) please check your wiring and supply"); while(1);}
if(MQ2calcR0 == 0 || MQ3calcR0 == 0 || MQ4calcR0 == 0 || MQ5calcR0 == 0 || MQ6calcR0 == 0 || MQ7calcR0 == 0 || MQ8calcR0 == 0 || MQ9calcR0 == 0){Serial.println("Warning: Conection issue founded, R0 is zero (Analog pin with short circuit to ground) please check your wiring and supply"); while(1);}
/***************************** MQ CAlibration ********************************************/
//Print in serial monitor
Serial.print("MQ2 to MQ9 - lecture");
Serial.println("MQ2 to MQ9 - lecture");
Serial.println("*************************** Lectures from MQ-board ***************************");
Serial.println("| LPG | Benzene | CH4 | H2 | CH4 | CO | H2 | LPG |");
Serial.println("| MQ-2 | MQ-3 | MQ-4 | MQ-5 | MQ-6 | MQ-7 | MQ-8 | MQ-9 |");
//pinMode(calibration_button, INPUT);
}
@ -125,24 +200,22 @@ void loop() {
}
*/
//Read the sensor and print in serial port
LPG = MQ2.readSensor();
Alcohol = MQ3.readSensor();
CH4 = MQ4.readSensor();
H2 = MQ5.readSensor();
CH42 = MQ6.readSensor();
CO = MQ7.readSensor();
H22 = MQ8.readSensor();
LPG2 = MQ9.readSensor();
float MQ2Lecture = MQ2.readSensor();
float MQ3Lecture = MQ3.readSensor();
float MQ4Lecture = MQ4.readSensor();
float MQ5Lecture = MQ5.readSensor();
float MQ6Lecture = MQ6.readSensor();
float MQ7Lecture = MQ7.readSensor();
float MQ8Lecture = MQ8.readSensor();
float MQ9Lecture = MQ9.readSensor();
Serial.println("***************************");
Serial.println("Lectures for MQ-Board");
Serial.print("LPG: ");Serial.print(LPG,2);Serial.println(" PPM");
Serial.print("Alcohol: ");Serial.print(Alcohol,2);Serial.println(" PPM");
Serial.print("CH4: ");Serial.print(CH4,2);Serial.println(" PPM");
Serial.print("H2: ");Serial.print(H2,2);Serial.println(" PPM");
Serial.print("CH4_2: ");Serial.print(CH42,2);Serial.println(" PPM");
Serial.print("CO: ");Serial.print(CO,2);Serial.println(" PPM");
Serial.print("H2_2: ");Serial.print(H22,2);Serial.println(" PPM");
Serial.print("LPG_2: ");Serial.print(LPG2,2);Serial.println(" PPM");
Serial.println("***************************");
Serial.print("| "); Serial.print(MQ2Lecture);
Serial.print(" | "); Serial.print(MQ3Lecture);
Serial.print(" | "); Serial.print(MQ4Lecture);
Serial.print(" | "); Serial.print(MQ5Lecture);
Serial.print(" | "); Serial.print(MQ6Lecture);
Serial.print(" | "); Serial.print(MQ7Lecture);
Serial.print(" | "); Serial.print(MQ8Lecture);
Serial.print(" | "); Serial.print(MQ9Lecture);
Serial.println("|");
}