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Fixed voltage calculation

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miguel5612 2020-03-26 11:08:53 -05:00
parent 12695e75a6
commit abac48da38
2 changed files with 6 additions and 6 deletions
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8
src/MQUnifiedsensor.cpp
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@ -64,7 +64,7 @@ void MQUnifiedsensor::serialDebug(bool onSetup)
{ {
if(!_firstFlag) if(!_firstFlag)
{ {
Serial.println("| ****************************************************************" + _type + "****************************************************************|"); Serial.println("| ********************************************************************" + _type + "*********************************************************************|");
Serial.println("|ADC_In | Equation_V_ADC | Voltage_ADC | Equation_R | Resistance_RS | EQ_Ratio | Ratio (RS/R0) | Equation_PPM | PPM |"); Serial.println("|ADC_In | Equation_V_ADC | Voltage_ADC | Equation_R | Resistance_RS | EQ_Ratio | Ratio (RS/R0) | Equation_PPM | PPM |");
_firstFlag = true; //Headers are printed _firstFlag = true; //Headers are printed
} }
@ -73,9 +73,9 @@ void MQUnifiedsensor::serialDebug(bool onSetup)
String eq = ""; String eq = "";
if(_regressionMethod == "Linear") eq = "ratio*a + b"; if(_regressionMethod == "Linear") eq = "ratio*a + b";
if(_regressionMethod == "Exponential") eq = "a*ratio^b"; if(_regressionMethod == "Exponential") eq = "a*ratio^b";
Serial.print("|"); Serial.print(_adc); Serial.print("| v = ADC*"); Serial.print(_VOLT_RESOLUTION); Serial.print("/1024 |"); Serial.print(_sensor_volt); Serial.print("|"); Serial.print(_adc); Serial.print("| v = ADC*"); Serial.print(_VOLT_RESOLUTION); Serial.print("/1024 | "); Serial.print(_sensor_volt);
Serial.print("| RS = ((" ); Serial.print(_VOLT_RESOLUTION ); Serial.print("*RL)/Voltage) - RL |"); Serial.print(_RS_Calc); Serial.print("| Ratio = RS/R0 |"); Serial.print(" | RS = ((" ); Serial.print(_VOLT_RESOLUTION ); Serial.print("*RL)/Voltage) - RL| "); Serial.print(_RS_Calc); Serial.print(" | Ratio = RS/R0| ");
Serial.print(_ratio); Serial.print( "|" + eq + "|"); Serial.print(_PPM); Serial.println("|"); Serial.print(_ratio); Serial.print( " | " + eq + " | "); Serial.print(_PPM); Serial.println(" |");
} }
} }
} }

4
src/MQUnifiedsensor.h
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@ -42,10 +42,10 @@ class MQUnifiedsensor
byte _pin; byte _pin;
byte _firstFlag = false; byte _firstFlag = false;
byte _VOLT_RESOLUTION = 5.0; // if 3.3v use 3.3 byte _VOLT_RESOLUTION = 5.0; // if 3.3v use 3.3
byte _ratioInCleanAir, _sensor_volt; byte _ratioInCleanAir;
byte _RL = 10; //Value in KiloOhms byte _RL = 10; //Value in KiloOhms
double _adc, _a, _b; double _adc, _a, _b, _sensor_volt;
float _R0, RS_air, _ratio, _PPM, _RS_Calc; float _R0, RS_air, _ratio, _PPM, _RS_Calc;
String _type; String _type;