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Converted to global var _sensor_volt

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miguel5612 2019-05-29 21:31:45 -05:00
parent 82b7b6e04d
commit c2e4ca7164
2 changed files with 8 additions and 8 deletions
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14
src/MQUnifiedsensor.cpp
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@ -107,8 +107,8 @@ int MQUnifiedsensor::readSensor(String nameLectureRequeired, bool print)
String nameLecture = getnameLecture(); String nameLecture = getnameLecture();
Serial.println("**********************"); Serial.println("**********************");
Serial.println("* Sensor: MQ-" + String(_type)); Serial.println("* Sensor: MQ-" + String(_type));
Serial.println("* m =" + String(_m) + " ,b =" + String(_b)); Serial.println("* m =" + String(_m) + " ,b =" + String(_b) + ", R0 = " + _R0);
Serial.println("* RS/R0 = " + String(_ratio) + " ,Voltaje leido(ADC): " + String(this->getVoltage())); Serial.println("* RS/R0 = " + String(_ratio) + " ,Voltaje leido(ADC): " + String(_sensor_volt));
Serial.println("* Lectura(" + nameLecture + ")=" + String(_PPM) + " PPM"); Serial.println("* Lectura(" + nameLecture + ")=" + String(_PPM) + " PPM");
Serial.println("**********************"); Serial.println("**********************");
} }
@ -148,10 +148,10 @@ int MQUnifiedsensor::readPPM(int m, int b) {
/** /**
* Returns the PPM concentration * Returns the PPM concentration
*/ */
double sensor_volt = this->getVoltage(); _sensor_volt = this->getVoltage();
double RS_gas; //Define variable for sensor resistance double RS_gas; //Define variable for sensor resistance
RS_gas = ((VOLT_RESOLUTION*RLValue)/sensor_volt)-RLValue; //Get value of RS in a gas RS_gas = ((VOLT_RESOLUTION*RLValue)/_sensor_volt)-RLValue; //Get value of RS in a gas
_ratio = RS_gas / this->_R0; // Get ratio RS_gas/RS_air _ratio = RS_gas / this->_R0; // Get ratio RS_gas/RS_air
@ -172,12 +172,12 @@ int MQUnifiedsensor::calibrate() {
RS = [(VC x RL) - (VRL x RL)] / VRL RS = [(VC x RL) - (VRL x RL)] / VRL
RS = [(VC x RL) / VRL] - RL RS = [(VC x RL) / VRL] - RL
*/ */
float sensor_volt; //Define variable for sensor voltage _sensor_volt; //Define variable for sensor voltage
float RS_air; //Define variable for sensor resistance float RS_air; //Define variable for sensor resistance
float R0; //Define variable for R0 float R0; //Define variable for R0
float sensorValue; //Define variable for analog readings float sensorValue; //Define variable for analog readings
sensor_volt = this->getVoltage(); //Convert average to voltage _sensor_volt = this->getVoltage(); //Convert average to voltage
RS_air = ((VOLT_RESOLUTION*RLValue)/sensor_volt)-RLValue; //Calculate RS in fresh air RS_air = ((VOLT_RESOLUTION*RLValue)/_sensor_volt)-RLValue; //Calculate RS in fresh air
R0 = RS_air/_ratioInCleanAir; //Calculate R0 R0 = RS_air/_ratioInCleanAir; //Calculate R0
return R0; return R0;
} }

2
src/MQUnifiedsensor.h
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@ -11,7 +11,7 @@
/************************Global vars************************************/ /************************Global vars************************************/
int VOLT_RESOLUTION = 5.0; // if 3.3v use 3.3 int VOLT_RESOLUTION = 5.0; // if 3.3v use 3.3
int RLValue = 10; //Value in KiloOhms int RLValue = 10; //Value in KiloOhms
int _ratioInCleanAir, _PPM; int _ratioInCleanAir, _PPM, _sensor_volt;
double RS_air, _m, _b, _ratio; double RS_air, _m, _b, _ratio;
/************************Hardware Related Macros************************************/ /************************Hardware Related Macros************************************/