mirror of
https://github.com/miguel5612/MQSensorsLib.git
synced 2025-03-15 05:17:30 +03:00
Replaced equation y = mx+b to potential equation y=a*x^b
This commit is contained in:
miguel5612
parent
02e5fa2160
commit
7aa387c0b4
@ -146,37 +146,37 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "H2")
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{
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_nameLectureRequeired = "H2";
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_m = MQ2_H2_m;
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_a = MQ2_H2_m;
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_b = MQ2_H2_b;
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}
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else if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ2_LPG_m;
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_a = MQ2_LPG_m;
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_b = MQ2_LPG_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ2_CO_m;
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_a = MQ2_CO_m;
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_b = MQ2_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ2_Alcohol_m;
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_a = MQ2_Alcohol_m;
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_b = MQ2_Alcohol_b;
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}
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else if(_nameLectureRequeired == "Propane")
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{
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_nameLectureRequeired = "Propane";
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_m = MQ2_Propane_m;
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_a = MQ2_Propane_m;
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_b = MQ2_Propane_b;
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}
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else if(_nameLectureRequeired == "Benzene")
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{
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_nameLectureRequeired = "Benzene";
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_m = MQ2_Benzene_m;
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_a = MQ2_Benzene_m;
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_b = MQ2_Benzene_b;
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}
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}
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@ -185,37 +185,37 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ3_LPG_m;
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_a = MQ3_LPG_m;
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_b = MQ3_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ3_CH4_m;
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_a = MQ3_CH4_m;
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_b = MQ3_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ3_CO_m;
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_a = MQ3_CO_m;
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_b = MQ3_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ3_Alcohol_m;
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_a = MQ3_Alcohol_m;
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_b = MQ3_Alcohol_b;
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}
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else if(_nameLectureRequeired == "Hexane")
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{
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_nameLectureRequeired = "Hexane";
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_m = MQ3_Hexane_m;
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_a = MQ3_Hexane_m;
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_b = MQ3_Hexane_b;
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}
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else if(_nameLectureRequeired == "Benzene")
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{
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_nameLectureRequeired = "Benzene";
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_m = MQ3_Benzene_m;
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_a = MQ3_Benzene_m;
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_b = MQ3_Benzene_b;
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}
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}
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@ -224,31 +224,31 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ4_LPG_m;
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_a = MQ4_LPG_m;
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_b = MQ4_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ4_CH4_m;
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_a = MQ4_CH4_m;
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_b = MQ4_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ4_CO_m;
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_a = MQ4_CO_m;
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_b = MQ4_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ4_Alcohol_m;
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_a = MQ4_Alcohol_m;
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_b = MQ4_Alcohol_b;
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}
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else if(_nameLectureRequeired == "smoke")
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{
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_nameLectureRequeired = "smoke";
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_m = MQ4_smoke_m;
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_a = MQ4_smoke_m;
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_b = MQ4_smoke_b;
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}
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}
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@ -257,31 +257,31 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "H2")
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{
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_nameLectureRequeired = "H2";
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_m = MQ5_H2_m;
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_a = MQ5_H2_m;
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_b = MQ5_H2_b;
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}
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else if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ5_LPG_m;
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_a = MQ5_LPG_m;
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_b = MQ5_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ5_CH4_m;
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_a = MQ5_CH4_m;
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_b = MQ5_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ5_CO_m;
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_a = MQ5_CO_m;
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_b = MQ5_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ5_Alcohol_m;
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_a = MQ5_Alcohol_m;
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_b = MQ5_Alcohol_b;
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}
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}
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@ -290,31 +290,31 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "H2")
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{
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_nameLectureRequeired = "H2";
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_m = MQ6_H2_m;
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_a = MQ6_H2_m;
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_b = MQ6_H2_b;
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}
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else if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ6_LPG_m;
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_a = MQ6_LPG_m;
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_b = MQ6_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ6_CH4_m;
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_a = MQ6_CH4_m;
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_b = MQ6_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ6_CO_m;
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_a = MQ6_CO_m;
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_b = MQ6_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ6_Alcohol_m;
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_a = MQ6_Alcohol_m;
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_b = MQ6_Alcohol_b;
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}
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}
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@ -323,31 +323,31 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "H2")
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{
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_nameLectureRequeired = "H2";
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_m = MQ7_H2_m;
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_a = MQ7_H2_m;
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_b = MQ7_H2_b;
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}
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else if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ7_LPG_m;
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_a = MQ7_LPG_m;
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_b = MQ7_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ7_CH4_m;
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_a = MQ7_CH4_m;
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_b = MQ7_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ7_CO_m;
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_a = MQ7_CO_m;
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_b = MQ7_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ7_Alcohol_m;
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_a = MQ7_Alcohol_m;
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_b = MQ7_Alcohol_b;
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}
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}
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@ -356,31 +356,31 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "H2")
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{
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_nameLectureRequeired = "H2";
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_m = MQ8_H2_m;
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_a = MQ8_H2_m;
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_b = MQ8_H2_b;
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}
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else if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ8_LPG_m;
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_a = MQ8_LPG_m;
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_b = MQ8_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ8_CH4_m;
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_a = MQ8_CH4_m;
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_b = MQ8_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ8_CO_m;
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_a = MQ8_CO_m;
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_b = MQ8_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ8_Alcohol_m;
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_a = MQ8_Alcohol_m;
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_b = MQ8_Alcohol_b;
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}
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}
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@ -389,19 +389,19 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "LPG")
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{
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_nameLectureRequeired = "LPG";
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_m = MQ9_LPG_m;
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_a = MQ9_LPG_m;
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_b = MQ9_LPG_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ9_CH4_m;
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_a = MQ9_CH4_m;
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_b = MQ9_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ9_CO_m;
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_a = MQ9_CO_m;
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_b = MQ9_CO_b;
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}
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}
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@ -410,19 +410,19 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "NOx")
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{
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_nameLectureRequeired = "NOx";
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_m = MQ131_NOx_m;
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_a = MQ131_NOx_m;
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_b = MQ131_NOx_b;
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}
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else if(_nameLectureRequeired == "CL2")
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{
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_nameLectureRequeired = "CL2";
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_m = MQ131_CL2_m;
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_a = MQ131_CL2_m;
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_b = MQ131_CL2_b;
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}
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else if(_nameLectureRequeired == "O3")
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{
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_nameLectureRequeired = "O3";
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_m = MQ131_O3_m;
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_a = MQ131_O3_m;
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_b = MQ131_O3_b;
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}
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}
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@ -431,37 +431,37 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ135_CO_m;
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_a = MQ135_CO_m;
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_b = MQ135_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ135_Alcohol_m;
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_a = MQ135_Alcohol_m;
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_b = MQ135_Alcohol_b;
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}
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else if(_nameLectureRequeired == "CO2")
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{
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_nameLectureRequeired = "CO2";
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_m = MQ135_CO2_m;
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_a = MQ135_CO2_m;
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_b = MQ135_CO2_b;
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}
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else if(_nameLectureRequeired == "Tolueno")
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{
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_nameLectureRequeired = "Tolueno";
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_m = MQ135_Tolueno_m;
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_a = MQ135_Tolueno_m;
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_b = MQ135_Tolueno_b;
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}
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else if(_nameLectureRequeired == "NH4")
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{
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_nameLectureRequeired = "NH4";
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_m = MQ135_NH4_m;
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_a = MQ135_NH4_m;
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_b = MQ135_NH4_b;
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}
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else if(_nameLectureRequeired == "Acetona")
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{
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_nameLectureRequeired = "Acetona";
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_m = MQ135_Acetona_m;
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_a = MQ135_Acetona_m;
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_b = MQ135_Acetona_b;
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}
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}
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@ -470,19 +470,19 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "Iso_butano")
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{
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_nameLectureRequeired = "Iso_butano";
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_m = MQ303_Iso_butano_m;
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_a = MQ303_Iso_butano_m;
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_b = MQ303_Iso_butano_b;
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}
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else if(_nameLectureRequeired == "Hydrogeno")
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{
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_nameLectureRequeired = "Hydrogeno";
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_m = MQ303_Hydrogeno_m;
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_a = MQ303_Hydrogeno_m;
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_b = MQ303_Hydrogeno_b;
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}
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else if(_nameLectureRequeired == "Ethanol")
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{
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_nameLectureRequeired = "Ethanol";
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_m = MQ303_Ethanol_m;
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_a = MQ303_Ethanol_m;
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_b = MQ303_Ethanol_b;
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}
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}
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@ -491,25 +491,25 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
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if(_nameLectureRequeired == "H2")
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{
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_nameLectureRequeired = "H2";
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_m = MQ309_H2_m;
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_a = MQ309_H2_m;
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_b = MQ309_H2_b;
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}
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else if(_nameLectureRequeired == "CH4")
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{
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_nameLectureRequeired = "CH4";
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_m = MQ309_CH4_m;
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_a = MQ309_CH4_m;
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_b = MQ309_CH4_b;
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}
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else if(_nameLectureRequeired == "CO")
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{
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_nameLectureRequeired = "CO";
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_m = MQ309_CO_m;
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_a = MQ309_CO_m;
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_b = MQ309_CO_b;
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}
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else if(_nameLectureRequeired == "Alcohol")
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{
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_nameLectureRequeired = "Alcohol";
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_m = MQ309_Alcohol_m;
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_a = MQ309_Alcohol_m;
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_b = MQ309_Alcohol_b;
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}
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}
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@ -522,13 +522,10 @@ float MQUnifiedsensor::readPPM(int m, int b) {
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//More explained in: https://jayconsystems.com/blog/understanding-a-gas-sensor
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_sensor_volt = this->getVoltage();
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//_RS_Calc; //Define variable for sensor resistance
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_RS_Calc = ((_VOLT_RESOLUTION*_RLValue)/_sensor_volt)-_RLValue; //Get value of RS in a gas
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_ratio = _RS_Calc / this->_R0; // Get ratio RS_gas/RS_air
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float ppm = a*pow(_ratio, b);
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double ppm_log = (log10(_ratio) - b) / m; //Get ppm value in linear scale according to the the ratio value
|
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double ppm = pow(10, ppm_log); //Convert ppm value to log scale
|
||||
return floor(ppm);
|
||||
}
|
||||
long MQUnifiedsensor::calibrate(boolean print) {
|
||||
|
||||
@ -62,190 +62,190 @@
|
||||
/**********************Application Related Macros**********************************/
|
||||
/* Gas, Value of m (Slope) and b (Cut on x axis) points */
|
||||
//Values consolidated
|
||||
//Equation PPM = a*((x)^b)
|
||||
/********************** MQ2 ******************************************************/
|
||||
#define MQ2_H2_m -2.2459
|
||||
#define MQ2_H2_a -2.2459
|
||||
#define MQ2_H2_b 2.9845
|
||||
|
||||
#define MQ2_LPG_m -2.2879
|
||||
#define MQ2_LPG_a -2.2879
|
||||
#define MQ2_LPG_b 2.7901
|
||||
|
||||
#define MQ2_CO_m -2.6208
|
||||
#define MQ2_CO_a -2.6208
|
||||
#define MQ2_CO_b 3.6075
|
||||
|
||||
#define MQ2_Alcohol_m -3.1157
|
||||
#define MQ2_Alcohol_a -3.1157
|
||||
#define MQ2_Alcohol_b 4.5134
|
||||
|
||||
#define MQ2_Propane_m -2.7028
|
||||
#define MQ2_Propane_a -2.7028
|
||||
#define MQ2_Propane_b 3.5595
|
||||
|
||||
#define MQ2_Benzene_m -2.2879
|
||||
#define MQ2_Benzene_a -2.2879
|
||||
#define MQ2_Benzene_b 2.7901
|
||||
/********************** MQ3 ******************************************************/
|
||||
|
||||
#define MQ3_LPG_m -3.1851
|
||||
#define MQ3_LPG_a -3.1851
|
||||
#define MQ3_LPG_b 4.7048
|
||||
|
||||
#define MQ3_CH4_m -17.531
|
||||
#define MQ3_CH4_a -17.531
|
||||
#define MQ3_CH4_b 28.785
|
||||
|
||||
#define MQ3_CO_m -4.339
|
||||
#define MQ3_CO_a -4.339
|
||||
#define MQ3_CO_b 6.4432
|
||||
|
||||
#define MQ3_Alcohol_m -1.435
|
||||
#define MQ3_Alcohol_a -1.435
|
||||
#define MQ3_Alcohol_b 0.4103
|
||||
|
||||
#define MQ3_Benzene_m -2.7009
|
||||
#define MQ3_Benzene_a -2.7009
|
||||
#define MQ3_Benzene_b 0.632
|
||||
|
||||
#define MQ3_Hexane_m -2.7268
|
||||
#define MQ3_Hexane_a -2.7268
|
||||
#define MQ3_Hexane_b 3.6299
|
||||
/********************** MQ4 ******************************************************/
|
||||
|
||||
#define MQ4_LPG_m -2.5818
|
||||
#define MQ4_LPG_a -2.5818
|
||||
#define MQ4_LPG_b 3.6303
|
||||
|
||||
#define MQ4_CH4_m 0.9873
|
||||
#define MQ4_CH4_a 0.9873
|
||||
#define MQ4_CH4_b 2.6386
|
||||
|
||||
#define MQ4_CO_m -5.5945
|
||||
#define MQ4_CO_a -5.5945
|
||||
#define MQ4_CO_b 5.6693
|
||||
|
||||
#define MQ4_Alcohol_m -11.89
|
||||
#define MQ4_Alcohol_a -11.89
|
||||
#define MQ4_Alcohol_b 9.0375
|
||||
|
||||
#define MQ4_smoke_m -11.189
|
||||
#define MQ4_smoke_a -11.189
|
||||
#define MQ4_smoke_b 9.0375
|
||||
/********************** MQ5 ******************************************************/
|
||||
|
||||
#define MQ5_H2_m -4.368
|
||||
#define MQ5_H2_a -4.368
|
||||
#define MQ5_H2_b 2.9667
|
||||
|
||||
#define MQ5_LPG_m -2.5723
|
||||
#define MQ5_LPG_a -2.5723
|
||||
#define MQ5_LPG_b 1.8943
|
||||
|
||||
#define MQ5_CH4_m -2.4438
|
||||
#define MQ5_CH4_a -2.4438
|
||||
#define MQ5_CH4_b 2.3044
|
||||
|
||||
#define MQ5_CO_m -4.8188
|
||||
#define MQ5_CO_a -4.8188
|
||||
#define MQ5_CO_b 5.2023
|
||||
|
||||
#define MQ5_Alcohol_m -4.419
|
||||
#define MQ5_Alcohol_a -4.419
|
||||
#define MQ5_Alcohol_b 4.8044
|
||||
/********************** MQ6 ******************************************************/
|
||||
|
||||
#define MQ6_H2_m -3.6775
|
||||
#define MQ6_H2_a -3.6775
|
||||
#define MQ6_H2_b 5.0286
|
||||
|
||||
#define MQ6_LPG_m -1.6567
|
||||
#define MQ6_LPG_a -1.6567
|
||||
#define MQ6_LPG_b 2.8775
|
||||
|
||||
#define MQ6_CH4_m -1
|
||||
#define MQ6_CH4_a -1
|
||||
#define MQ6_CH4_b 3.301
|
||||
|
||||
#define MQ6_CO_m -12.791
|
||||
#define MQ6_CO_a -12.791
|
||||
#define MQ6_CO_b 14.523
|
||||
|
||||
#define MQ6_Alcohol_m -5.8057
|
||||
#define MQ6_Alcohol_a -5.8057
|
||||
#define MQ6_Alcohol_b 7.5292
|
||||
/********************** MQ7 ******************************************************/
|
||||
|
||||
#define MQ7_H2_m -1.329
|
||||
#define MQ7_H2_a -1.329
|
||||
#define MQ7_H2_b 1.8864
|
||||
|
||||
#define MQ7_LPG_m -7.8626
|
||||
#define MQ7_LPG_a -7.8626
|
||||
#define MQ7_LPG_b 9.1056
|
||||
|
||||
#define MQ7_CH4_m -5.4878
|
||||
#define MQ7_CH4_a -5.4878
|
||||
#define MQ7_CH4_b 8.8387
|
||||
|
||||
#define MQ7_CO_m -1.4065
|
||||
#define MQ7_CO_a -1.4065
|
||||
#define MQ7_CO_b 2.0162
|
||||
|
||||
#define MQ7_Alcohol_m -6.3219
|
||||
#define MQ7_Alcohol_a -6.3219
|
||||
#define MQ7_Alcohol_b 9.924
|
||||
|
||||
/********************** MQ8 ******************************************************/
|
||||
|
||||
#define MQ8_H2_m -0.7152
|
||||
#define MQ8_H2_a -0.7152
|
||||
#define MQ8_H2_b 2.9891
|
||||
|
||||
#define MQ8_LPG_m -3.419
|
||||
#define MQ8_LPG_a -3.419
|
||||
#define MQ8_LPG_b 7.3513
|
||||
|
||||
#define MQ8_CH4_m -7.5609
|
||||
#define MQ8_CH4_a -7.5609
|
||||
#define MQ8_CH4_b 15.243
|
||||
|
||||
#define MQ8_CO_m -7.0753
|
||||
#define MQ8_CO_a -7.0753
|
||||
#define MQ8_CO_b 15.396
|
||||
|
||||
#define MQ8_Alcohol_m -1.7459
|
||||
#define MQ8_Alcohol_a -1.7459
|
||||
#define MQ8_Alcohol_b 4.7575
|
||||
|
||||
/********************** MQ9 ******************************************************/
|
||||
|
||||
#define MQ9_LPG_m -2.2535
|
||||
#define MQ9_LPG_a -2.2535
|
||||
#define MQ9_LPG_b 2.9855
|
||||
|
||||
#define MQ9_CH4_m -1.6012
|
||||
#define MQ9_CH4_a -1.6012
|
||||
#define MQ9_CH4_b 3.1476
|
||||
|
||||
#define MQ9_CO_m -1.749
|
||||
#define MQ9_CO_a -1.749
|
||||
#define MQ9_CO_b 2.827
|
||||
|
||||
/********************** MQ131 ******************************************************/
|
||||
|
||||
#define MQ131_NOx_m -2.7245
|
||||
#define MQ131_NOx_a -2.7245
|
||||
#define MQ131_NOx_b 3.3004
|
||||
|
||||
#define MQ131_CL2_m -1.0333
|
||||
#define MQ131_CL2_a -1.0333
|
||||
#define MQ131_CL2_b 1.7117
|
||||
|
||||
#define MQ131_O3_m -1.2037
|
||||
#define MQ131_O3_a -1.2037
|
||||
#define MQ131_O3_b 1.6455
|
||||
|
||||
/********************** MQ135 ******************************************************/
|
||||
|
||||
#define MQ135_CO_m -2.7268
|
||||
#define MQ135_CO_a -2.7268
|
||||
#define MQ135_CO_b 2.301
|
||||
|
||||
#define MQ135_Alcohol_m -2.8608
|
||||
#define MQ135_Alcohol_a -2.8608
|
||||
#define MQ135_Alcohol_b 1.8627
|
||||
|
||||
#define MQ135_CO2_m -3.2819
|
||||
#define MQ135_CO2_a -3.2819
|
||||
#define MQ135_CO2_b 1.9903
|
||||
|
||||
#define MQ135_Tolueno_m -5.7015
|
||||
#define MQ135_Tolueno_a -5.7015
|
||||
#define MQ135_Tolueno_b 1.1612
|
||||
|
||||
#define MQ135_NH4_m -2.2119
|
||||
#define MQ135_NH4_a -2.2119
|
||||
#define MQ135_NH4_b 2.0473
|
||||
|
||||
#define MQ135_Acetona_m -5.9682
|
||||
#define MQ135_Acetona_a -5.9682
|
||||
#define MQ135_Acetona_b 1.0175
|
||||
|
||||
/********************** MQ303 ******************************************************/
|
||||
|
||||
#define MQ303_Iso_butano_m -2.3543
|
||||
#define MQ303_Iso_butano_a -2.3543
|
||||
#define MQ303_Iso_butano_b 1.144
|
||||
|
||||
#define MQ303_Hydrogeno_m -2.4338
|
||||
#define MQ303_Hydrogeno_a -2.4338
|
||||
#define MQ303_Hydrogeno_b 0.7558
|
||||
|
||||
#define MQ303_Ethanol_m -2.5597
|
||||
#define MQ303_Ethanol_a -2.5597
|
||||
#define MQ303_Ethanol_b 0.4436
|
||||
|
||||
/********************** MQ309 ******************************************************/
|
||||
|
||||
#define MQ309_H2_m -2.1311
|
||||
#define MQ309_H2_a -2.1311
|
||||
#define MQ309_H2_b 3.0886
|
||||
|
||||
#define MQ309_CH4_m -1.6554
|
||||
#define MQ309_CH4_a -1.6554
|
||||
#define MQ309_CH4_b 2.985
|
||||
|
||||
#define MQ309_CO_m -4.7623
|
||||
#define MQ309_CO_a -4.7623
|
||||
#define MQ309_CO_b 6.7413
|
||||
|
||||
#define MQ309_Alcohol_m -3.7686
|
||||
#define MQ309_Alcohol_a -3.7686
|
||||
#define MQ309_Alcohol_b 5.6744
|
||||
|
||||
/*
|
||||
@ -293,7 +293,7 @@ class MQUnifiedsensor
|
||||
int _VOLT_RESOLUTION = 5.0; // if 3.3v use 3.3
|
||||
int _RLValue = 10; //Value in KiloOhms
|
||||
float _PPM, _RS_Calc;
|
||||
float _ratioInCleanAir, _sensor_volt, RS_air, _m, _b, _ratio;
|
||||
float _ratioInCleanAir, _sensor_volt, RS_air, _a, _b, _ratio;
|
||||
|
||||
};
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user