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Merge pull request #51 from fredolaredo/patch-1

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some typo recommendations
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Miguel Angel Califa Urquiza 2022-03-20 12:44:45 -05:00 committed by GitHub
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51
examples/MQ-135-ALL/MQ-135-ALL.ino
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@ -15,7 +15,7 @@
Wiring:
https://github.com/miguel5612/MQSensorsLib_Docs/blob/master/static/img/MQ_Arduino.PNG
Please take care, arduino A0 pin represent the analog input configured on #define pin
Please make sure arduino A0 pin represents the analog input configured on #define pin
This example code is in the public domain.
@ -53,50 +53,49 @@ void setup() {
*/
/***************************** 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
// In this routine the sensor will measure the resistance of the sensor supposedly before being pre-heated
// and on clean air (Calibration conditions), setting up R0 value.
// We recomend executing this routine only on setup in laboratory conditions.
// This routine does not need to be executed on each restart, you can load your R0 value from eeprom.
// Acknowledgements: https://jayconsystems.com/blog/understanding-a-gas-sensor
Serial.print("Calibrating please wait.");
float calcR0 = 0;
for(int i = 1; i<=10; i ++)
{
MQ135.update(); // Update data, the arduino will be read the voltage on the analog pin
MQ135.update(); // Update data, the arduino will read the voltage from the analog pin
calcR0 += MQ135.calibrate(RatioMQ135CleanAir);
Serial.print(".");
}
MQ135.setR0(calcR0/10);
Serial.println(" done!.");
if(isinf(calcR0)) {Serial.println("Warning: Conection issue founded, R0 is infite (Open circuit detected) please check your wiring and supply"); while(1);}
if(calcR0 == 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);}
if(isinf(calcR0)) {Serial.println("Warning: Conection issue, R0 is infinite (Open circuit detected) please check your wiring and supply"); while(1);}
if(calcR0 == 0){Serial.println("Warning: Conection issue found, R0 is zero (Analog pin shorts to ground) please check your wiring and supply"); while(1);}
/***************************** MQ CAlibration ********************************************/
Serial.println("** Lectures from MQ-135 ****");
Serial.println("| CO | Alcohol | CO2 | Tolueno | NH4 | Acteona |");
Serial.println("** Values from MQ-135 ****");
Serial.println("| CO | Alcohol | CO2 | Toluen | NH4 | Aceton |");
}
void loop() {
MQ135.update(); // Update data, the arduino will be read the voltage on the analog pin
MQ135.update(); // Update data, the arduino will read the voltage from the analog pin
MQ135.setA(605.18); MQ135.setB(-3.937); // Configurate the ecuation values to get CO concentration
float CO = MQ135.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ135.setA(605.18); MQ135.setB(-3.937); // Configure the equation to calculate CO concentration value
float CO = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ135.setA(77.255); MQ135.setB(-3.18); // Configurate the ecuation values to get Alcohol concentration
float Alcohol = MQ135.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ135.setA(77.255); MQ135.setB(-3.18); //Configure the equation to calculate Alcohol concentration value
float Alcohol = MQ135.readSensor(); // SSensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ135.setA(110.47); MQ135.setB(-2.862); // Configurate the ecuation values to get CO2 concentration
float CO2 = MQ135.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ135.setA(110.47); MQ135.setB(-2.862); // Configure the equation to calculate CO2 concentration value
float CO2 = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ135.setA(44.947); MQ135.setB(-3.445); // Configurate the ecuation values to get Tolueno concentration
float Tolueno = MQ135.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ135.setA(102.2 ); MQ135.setB(-2.473); // Configurate the ecuation values to get NH4 concentration
float NH4 = MQ135.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ135.setA(34.668); MQ135.setB(-3.369); // Configurate the ecuation values to get Acetona concentration
float Acetona = MQ135.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ135.setA(44.947); MQ135.setB(-3.445); // Configure the equation to calculate Toluen concentration value
float Tolueno = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ135.setA(102.2 ); MQ135.setB(-2.473); // Configure the equation to calculate NH4 concentration value
float NH4 = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ135.setA(34.668); MQ135.setB(-3.369); // Configure the equation to calculate Aceton concentration value
float Acetona = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
Serial.print("| "); Serial.print(CO);
Serial.print(" | "); Serial.print(Alcohol);
// Note: 200 Offset for CO2 source: https://github.com/miguel5612/MQSensorsLib/issues/29
@ -123,4 +122,4 @@ void loop() {
*/
delay(500); //Sampling frequency
}
}