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Updated and fixed typo examples

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miguel5612
2022-03-20 12:53:36 -05:00
parent 990e6878ef
commit 07b6948f76
28 changed files with 302 additions and 302 deletions
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20
examples/smokeDetector/smokeDetector.ino
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@ -11,7 +11,7 @@
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.
@ -37,7 +37,7 @@ void setup() {
Serial.begin(115200);
//Set math model to calculate the PPM concentration and the value of constants
MQ4.setRegressionMethod(1); //_PPM = a*ratio^b
MQ4.setA(30000000); MQ4.setB(-8.308); // Configurate the ecuation values to get CH4 concentration
MQ4.setA(30000000); MQ4.setB(-8.308); // Configure the equation to to calculate CH4 concentration
/*
Exponential regression:
Gas | a | b
@ -57,24 +57,24 @@ 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 ++)
{
MQ4.update(); // Update data, the arduino will be read the voltage on the analog pin
MQ4.update(); // Update data, the arduino will read the voltage from the analog pin
calcR0 += MQ4.calibrate(RatioMQ4CleanAir);
Serial.print(".");
}
MQ4.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 ********************************************/
MQ4.serialDebug(true);
}
@ -88,7 +88,7 @@ void setup() {
//Read the sensor and print in serial port
//Lecture will be saved in lecture variable
MQ4.update();
float smokePPM = MQ4.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
float smokePPM = MQ4.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
if(smokePPM > 1000) {Serial.println("Warning: High concentrations of smoke detected");}
MQ4.serialDebug(); // Will print the table on the serial port
delay(400);