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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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22
examples/MQ-9/MQ-9.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.
@ -45,7 +45,7 @@ void setup() {
//Set math model to calculate the PPM concentration and the value of constants
MQ9.setRegressionMethod(1); //_PPM = a*ratio^b
MQ9.setA(1000.5); MQ9.setB(-2.186); // Configurate the ecuation values to get LPG concentration
MQ9.setA(1000.5); MQ9.setB(-2.186); // Configure the equation to to calculate LPG concentration
/*
Exponential regression:
@ -65,10 +65,10 @@ 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
// ISSUE 44 - MQ9 needs a low/high temperature cycle like MQ7 #44
@ -94,15 +94,15 @@ void setup() {
float calcR0 = 0;
for(int i = 1; i<=10; i ++)
{
MQ9.update(); // Update data, the arduino will be read the voltage on the analog pin
MQ9.update(); // Update data, the arduino will read the voltage from the analog pin
calcR0 += MQ9.calibrate(RatioMQ9CleanAir);
Serial.print(".");
}
MQ9.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 ********************************************/
MQ9.serialDebug(true);
}
@ -114,8 +114,8 @@ void loop() {
digitalWrite(PreaheatControlPin5, HIGH);
digitalWrite(PreaheatControlPin14, LOW);
MQ9.update(); // Update data, the arduino will be read the voltage on the analog pin
MQ9.readSensor(); // Sensor will read PPM concentration using the model and a and b values setted before or in the setup
MQ9.update(); // Update data, the arduino will read the voltage from the analog pin
MQ9.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ9.serialDebug(); // Will print the table on the serial port
}