From f4febca6dfbb251f3804577de965a663a1ddec4d Mon Sep 17 00:00:00 2001
From: miguel5612 <miguelangel5612@gmail.com>
Date: Thu, 30 May 2019 12:25:15 -0500
Subject: [PATCH] Memoery performance

---
 src/MQUnifiedsensor.cpp | 402 ++++++++++++++++++++++++++++++++++++++--
 src/MQUnifiedsensor.h   | 190 ++++++++++++++++++-
 2 files changed, 575 insertions(+), 17 deletions(-)

diff --git a/src/MQUnifiedsensor.cpp b/src/MQUnifiedsensor.cpp
index 2cb45bb..f92c23a 100644
--- a/src/MQUnifiedsensor.cpp
+++ b/src/MQUnifiedsensor.cpp
@@ -7,84 +7,84 @@
   //Set _MQ variable with MQ sensor selected
   if(_type == 2)
   {
-    memcpy(_MQ, _MQ2, sizeof(_MQ2));
+    //memcpy(_MQ, _MQ2, sizeof(_MQ2));
     _ratioInCleanAir = RatioMQ2CleanAir;
     _R0 = R0_MQ2;
     //_MQ = MQ2;
   }
   else if(_type == 3)
   {
-    memcpy(_MQ, _MQ3, sizeof(_MQ3));
+    //memcpy(_MQ, _MQ3, sizeof(_MQ3));
     _ratioInCleanAir = RatioMQ3CleanAir;
     _R0 = R0_MQ3;
     //_MQ = MQ3;
   }
   else if(_type == 4)
   {
-    memcpy(_MQ, _MQ4, sizeof(_MQ4));
+    //memcpy(_MQ, _MQ4, sizeof(_MQ4));
     _ratioInCleanAir = RatioMQ4CleanAir;
     _R0 = R0_MQ4;
     //_MQ = MQ4;
   }
   else if(_type == 5)
   {
-    memcpy(_MQ, _MQ5, sizeof(_MQ5));
+    //memcpy(_MQ, _MQ5, sizeof(_MQ5));
     _ratioInCleanAir = RatioMQ5CleanAir;
     _R0 = R0_MQ5;
     //_MQ = MQ5;
   }
   else if(_type == 6)
   {
-    memcpy(_MQ, _MQ6, sizeof(_MQ6));
+    //memcpy(_MQ, _MQ6, sizeof(_MQ6));
     _ratioInCleanAir = RatioMQ6CleanAir;
     _R0 = R0_MQ6;
     //_MQ = MQ6;
   }
   else if(_type == 7)
   {
-    memcpy(_MQ, _MQ7, sizeof(_MQ7));
+    //memcpy(_MQ, _MQ7, sizeof(_MQ7));
     _ratioInCleanAir = RatioMQ7CleanAir;
     _R0 = R0_MQ7;
     //_MQ = MQ7;
   }
   else if(_type == 8)
   {
-    memcpy(_MQ, _MQ8, sizeof(_MQ8));
+    //memcpy(_MQ, _MQ8, sizeof(_MQ8));
     _ratioInCleanAir = RatioMQ8CleanAir;
     _R0 = R0_MQ8;
     //_MQ = MQ8;
   }
   else if(_type == 9)
   {
-    memcpy(_MQ, _MQ9, sizeof(_MQ9));
+    //memcpy(_MQ, _MQ9, sizeof(_MQ9));
     _ratioInCleanAir = RatioMQ9CleanAir;
     _R0 = R0_MQ9;
     //_MQ = MQ9;
   }
   else if(_type == 131)
   {
-    memcpy(_MQ, _MQ131, sizeof(_MQ131));
+    //memcpy(_MQ, _MQ131, sizeof(_MQ131));
     _ratioInCleanAir = RatioMQ131CleanAir;
     _R0 = R0_MQ131;
     //_MQ = MQ131;
   }
   else if(_type == 135)
   {
-    memcpy(_MQ, _MQ135, sizeof(_MQ135));
+    //memcpy(_MQ, _MQ135, sizeof(_MQ135));
     _ratioInCleanAir = RatioMQ135CleanAir;
     _R0 = R0_MQ135;
     //_MQ = MQ135;
   }
   else if(_type == 303)
   {
-    memcpy(_MQ, _MQ303A, sizeof(_MQ303A));
+    //memcpy(_MQ, _MQ303A, sizeof(_MQ303A));
     _ratioInCleanAir = RatioMQ303CleanAir;
     _R0 = R0_MQ303;
     //_MQ = MQ303A;
   }
   else if(_type == 309)
   {
-    memcpy(_MQ, _MQ309A, sizeof(_MQ309A));
+    //memcpy(_MQ, _MQ309A, sizeof(_MQ309A));
     _ratioInCleanAir = RatioMQ309CleanAir;
     _R0 = R0_MQ309;
     //_MQ = MQ309;
@@ -130,17 +130,387 @@ void MQUnifiedsensor::setSensorCharacteristics(String nameLectureRequeired, bool
   }
 
   //Dinamic index search
+  /*
   for (int i=0; i<sizeof(_MQ); i++) {
       if (nameLectureRequeired == _MQ[i]) {    //modified here
         _lecturePosInArray = i;
         break;
       }
     }
+  */
+  if(_type == 2)
+    {
+      if(_nameLectureRequeired == "H2")
+      {
+        _nameLectureRequeired = "H2";
+        _m = MQ2_H2_m;
+        _b = MQ2_H2_b;
+      }
+      else if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ2_LPG_m;
+        _b = MQ2_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ2_CO_m;
+        _b = MQ2_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ2_Alcohol_m;
+        _b = MQ2_Alcohol_b;
+      }  
+      else if(_nameLectureRequeired == "Propane")
+      {
+        _nameLectureRequeired = "Propane";
+        _m = MQ2_Propane_m;
+        _b = MQ2_Propane_b;
+      }   
+      else if(_nameLectureRequeired == "Benzene")
+      {
+        _nameLectureRequeired = "Benzene";
+        _m = MQ2_Benzene_m;
+        _b = MQ2_Benzene_b;
+      }    
+    }
+    else if(_type == 3)
+    {
+      if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ3_LPG_m;
+        _b = MQ3_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ3_CH4_m;
+        _b = MQ3_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ3_CO_m;
+        _b = MQ3_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ3_Alcohol_m;
+        _b = MQ3_Alcohol_b;
+      }  
+      else if(_nameLectureRequeired == "Hexane")
+      {
+        _nameLectureRequeired = "Hexane";
+        _m = MQ3_Hexane_m;
+        _b = MQ3_Hexane_b;
+      }   
+      else if(_nameLectureRequeired == "Benzene")
+      {
+        _nameLectureRequeired = "Benzene";
+        _m = MQ3_Benzene_m;
+        _b = MQ3_Benzene_b;
+      }
+    }
+    else if(_type == 4)
+    {
+      if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ4_LPG_m;
+        _b = MQ4_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ4_CH4_m;
+        _b = MQ4_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ4_CO_m;
+        _b = MQ4_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ4_Alcohol_m;
+        _b = MQ4_Alcohol_b;
+      }  
+      else if(_nameLectureRequeired == "smoke")
+      {
+        _nameLectureRequeired = "smoke";
+        _m = MQ4_smoke_m;
+        _b = MQ4_smoke_b;
+      }   
+    }
+    else if(_type == 5)
+    {
+      if(_nameLectureRequeired == "H2")
+      {
+        _nameLectureRequeired = "H2";
+        _m = MQ5_H2_m;
+        _b = MQ5_H2_b;
+      }   
+      else if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ5_LPG_m;
+        _b = MQ5_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ5_CH4_m;
+        _b = MQ5_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ5_CO_m;
+        _b = MQ5_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ5_Alcohol_m;
+        _b = MQ5_Alcohol_b;
+      }  
+    }
+    else if(_type == 6)
+    {
+      if(_nameLectureRequeired == "H2")
+      {
+        _nameLectureRequeired = "H2";
+        _m = MQ6_H2_m;
+        _b = MQ6_H2_b;
+      }   
+      else if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ6_LPG_m;
+        _b = MQ6_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ6_CH4_m;
+        _b = MQ6_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ6_CO_m;
+        _b = MQ6_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ6_Alcohol_m;
+        _b = MQ6_Alcohol_b;
+      }  
+    }
+    else if(_type == 7)
+    {
+      if(_nameLectureRequeired == "H2")
+      {
+        _nameLectureRequeired = "H2";
+        _m = MQ7_H2_m;
+        _b = MQ7_H2_b;
+      }   
+      else if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ7_LPG_m;
+        _b = MQ7_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ7_CH4_m;
+        _b = MQ7_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ7_CO_m;
+        _b = MQ7_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ7_Alcohol_m;
+        _b = MQ7_Alcohol_b;
+      } 
+    }
+    else if(_type == 8)
+    {
+      if(_nameLectureRequeired == "H2")
+      {
+        _nameLectureRequeired = "H2";
+        _m = MQ8_H2_m;
+        _b = MQ8_H2_b;
+      }   
+      else if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ8_LPG_m;
+        _b = MQ8_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ8_CH4_m;
+        _b = MQ8_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ8_CO_m;
+        _b = MQ8_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ8_Alcohol_m;
+        _b = MQ8_Alcohol_b;
+      } 
+    }
+    else if(_type == 9)
+    {
+      if(_nameLectureRequeired == "LPG")
+      {
+        _nameLectureRequeired = "LPG";
+        _m = MQ9_LPG_m;
+        _b = MQ9_LPG_b;
+      }
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ9_CH4_m;
+        _b = MQ9_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ9_CO_m;
+        _b = MQ9_CO_b;
+      }    
+    }
+    else if(_type == 131)
+    {
+      if(_nameLectureRequeired == "NOx")
+      {
+        _nameLectureRequeired = "NOx";
+        _m = MQ131_NOx_m;
+        _b = MQ131_NOx_b;
+      }
+      else if(_nameLectureRequeired == "CL2")
+      {
+        _nameLectureRequeired = "CL2";
+        _m = MQ131_CL2_m;
+        _b = MQ131_CL2_b;
+      }
+      else if(_nameLectureRequeired == "O3")
+      {
+        _nameLectureRequeired = "O3";
+        _m = MQ131_O3_m;
+        _b = MQ131_O3_b;
+      }    
+    }
+    else if(_type == 135)
+    {
+      if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ135_CO_m;
+        _b = MQ135_CO_b;
+      }
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ135_Alcohol_m;
+        _b = MQ135_Alcohol_b;
+      }
+      else if(_nameLectureRequeired == "CO2")
+      {
+        _nameLectureRequeired = "CO2";
+        _m = MQ135_CO2_m;
+        _b = MQ135_CO2_b;
+      } 
+      else if(_nameLectureRequeired == "Tolueno")
+      {
+        _nameLectureRequeired = "Tolueno";
+        _m = MQ135_Tolueno_m;
+        _b = MQ135_Tolueno_b;
+      }
+      else if(_nameLectureRequeired == "NH4")
+      {
+        _nameLectureRequeired = "NH4";
+        _m = MQ135_NH4_m;
+        _b = MQ135_NH4_b;
+      }
+      else if(_nameLectureRequeired == "Acetona")
+      {
+        _nameLectureRequeired = "Acetona";
+        _m = MQ135_Acetona_m;
+        _b = MQ135_Acetona_b;
+      } 
+    }
+    else if(_type == 303)
+    {
+      if(_nameLectureRequeired == "Iso_butano")
+      {
+        _nameLectureRequeired = "Iso_butano";
+        _m = MQ303_Iso_butano_m;
+        _b = MQ303_Iso_butano_b;
+      }
+      else if(_nameLectureRequeired == "Hydrogeno")
+      {
+        _nameLectureRequeired = "Hydrogeno";
+        _m = MQ303_Hydrogeno_m;
+        _b = MQ303_Hydrogeno_b;
+      }
+      else if(_nameLectureRequeired == "Ethanol")
+      {
+        _nameLectureRequeired = "Ethanol";
+        _m = MQ303_Ethanol_m;
+        _b = MQ303_Ethanol_b;
+      } 
+    }
+    else if(_type == 309)
+    {      
+      if(_nameLectureRequeired == "H2")
+      {
+        _nameLectureRequeired = "H2";
+        _m = MQ309_H2_m;
+        _b = MQ309_H2_b;
+      } 
+      else if(_nameLectureRequeired == "CH4")
+      {
+        _nameLectureRequeired = "CH4";
+        _m = MQ309_CH4_m;
+        _b = MQ309_CH4_b;
+      }
+      else if(_nameLectureRequeired == "CO")
+      {
+        _nameLectureRequeired = "CO";
+        _m = MQ309_CO_m;
+        _b = MQ309_CO_b;
+      }    
+      else if(_nameLectureRequeired == "Alcohol")
+      {
+        _nameLectureRequeired = "Alcohol";
+        _m = MQ309_Alcohol_m;
+        _b = MQ309_Alcohol_b;
+      } 
+    }
   //Serial debugging
-  _m = stringToDouble(_MQ[_lecturePosInArray+1]);
-  _b = stringToDouble(_MQ[_lecturePosInArray+2]);
-  //Save the name for future calls
-  nameLectureRequeired = _nameLectureRequeired;
 }
 int MQUnifiedsensor::readPPM(int m, int b) {
   /**
diff --git a/src/MQUnifiedsensor.h b/src/MQUnifiedsensor.h
index ace4943..1d5e28d 100644
--- a/src/MQUnifiedsensor.h
+++ b/src/MQUnifiedsensor.h
@@ -60,6 +60,193 @@
 /**********************Application Related Macros**********************************/
 /* Gas, Value of m (Slope) and b (Cut on x axis) points */
 //Values consolidated
+/********************** MQ2 ******************************************************/
+#define MQ2_H2_m -2.2459
+#define MQ2_H2_b 2.9845
+ 
+#define MQ2_LPG_m -2.2879
+#define MQ2_LPG_b 2.7901
+
+#define MQ2_CO_m -2.6208
+#define MQ2_CO_b 3.6075
+
+#define MQ2_Alcohol_m -3.1157
+#define MQ2_Alcohol_b 4.5134
+
+#define MQ2_Propane_m -2.7028
+#define MQ2_Propane_b 3.5595
+
+#define MQ2_Benzene_m -2.2879
+#define MQ2_Benzene_b 2.7901
+/********************** MQ3 ******************************************************/
+
+#define MQ3_LPG_m -3.1851
+#define MQ3_LPG_b 4.7048
+
+#define MQ3_CH4_m -17.531
+#define MQ3_CH4_b 28.785
+
+#define MQ3_CO_m -4.339
+#define MQ3_CO_b 6.4432
+
+#define MQ3_Alcohol_m -1.435
+#define MQ3_Alcohol_b 0.4103
+
+#define MQ3_Benzene_m -2.7009
+#define MQ3_Benzene_b 0.632
+
+#define MQ3_Hexane_m -2.7268
+#define MQ3_Hexane_b 3.6299
+/********************** MQ4 ******************************************************/
+
+#define MQ4_LPG_m -2.5818
+#define MQ4_LPG_b 3.6303
+
+#define MQ4_CH4_m 0.9873
+#define MQ4_CH4_b 2.6386
+
+#define MQ4_CO_m -5.5945
+#define MQ4_CO_b 5.6693
+
+#define MQ4_Alcohol_m -11.89
+#define MQ4_Alcohol_b 9.0375
+
+#define MQ4_smoke_m -11.189
+#define MQ4_smoke_b 9.0375
+/********************** MQ5 ******************************************************/
+
+#define MQ5_H2_m -4.368
+#define MQ5_H2_b 2.9667
+
+#define MQ5_LPG_m -2.5723
+#define MQ5_LPG_b 1.8943
+
+#define MQ5_CH4_m -2.4438
+#define MQ5_CH4_b 2.3044
+
+#define MQ5_CO_m -4.8188
+#define MQ5_CO_b 5.2023
+
+#define MQ5_Alcohol_m -4.419
+#define MQ5_Alcohol_b 4.8044
+/********************** MQ6 ******************************************************/
+
+#define MQ6_H2_m -3.6775
+#define MQ6_H2_b 5.0286
+
+#define MQ6_LPG_m -1.6567
+#define MQ6_LPG_b 2.8775
+
+#define MQ6_CH4_m -1
+#define MQ6_CH4_b 3.301
+
+#define MQ6_CO_m -12.791
+#define MQ6_CO_b 14.523
+
+#define MQ6_Alcohol_m -5.8057
+#define MQ6_Alcohol_b 7.5292
+/********************** MQ7 ******************************************************/
+
+#define MQ7_H2_m -1.329
+#define MQ7_H2_b 1.8864
+
+#define MQ7_LPG_m -7.8626
+#define MQ7_LPG_b 9.1056
+
+#define MQ7_CH4_m -5.4878
+#define MQ7_CH4_b 8.8387
+
+#define MQ7_CO_m -1.4065
+#define MQ7_CO_b 2.0162
+
+#define MQ7_Alcohol_m -6.3219
+#define MQ7_Alcohol_b 9.924
+
+/********************** MQ8 ******************************************************/
+
+#define MQ8_H2_m -0.7152
+#define MQ8_H2_b 2.9891
+
+#define MQ8_LPG_m -3.419
+#define MQ8_LPG_b 7.3513
+
+#define MQ8_CH4_m -7.5609
+#define MQ8_CH4_b 15.243
+
+#define MQ8_CO_m -7.0753
+#define MQ8_CO_b 15.396
+
+#define MQ8_Alcohol_m -1.7459
+#define MQ8_Alcohol_b 4.7575
+
+/********************** MQ9 ******************************************************/
+
+#define MQ9_LPG_m -2.2535
+#define MQ9_LPG_b 2.9855
+
+#define MQ9_CH4_m -1.6012
+#define MQ9_CH4_b 3.1476
+
+#define MQ9_CO_m -1.749
+#define MQ9_CO_b 2.827
+
+/********************** MQ131 ******************************************************/
+
+#define MQ131_NOx_m -2.7245
+#define MQ131_NOx_b 3.3004
+
+#define MQ131_CL2_m -1.0333
+#define MQ131_CL2_b 1.7117
+
+#define MQ131_O3_m -1.2037
+#define MQ131_O3_b 1.6455
+
+/********************** MQ135 ******************************************************/
+
+#define MQ135_CO_m -2.7268
+#define MQ135_CO_b 2.301
+
+#define MQ135_Alcohol_m -2.8608
+#define MQ135_Alcohol_b 1.8627
+
+#define MQ135_CO2_m -3.2819
+#define MQ135_CO2_b 1.9903
+
+#define MQ135_Tolueno_m -5.7015
+#define MQ135_Tolueno_b 1.1612
+
+#define MQ135_NH4_m -2.2119
+#define MQ135_NH4_b 2.0473
+
+#define MQ135_Acetona_m -5.9682
+#define MQ135_Acetona_b 1.0175
+
+/********************** MQ303 ******************************************************/
+
+#define MQ303_Iso_butano_m -2.3543
+#define MQ303_Iso_butano_b 1.144
+
+#define MQ303_Hydrogeno_m -2.4338
+#define MQ303_Hydrogeno_b 0.7558
+
+#define MQ303_Ethanol_m -2.5597
+#define MQ303_Ethanol_b 0.4436
+
+/********************** MQ309 ******************************************************/
+
+#define MQ309_H2_m -2.1311
+#define MQ309_H2_b 3.0886
+
+#define MQ309_CH4_m -1.6554
+#define MQ309_CH4_b 2.985
+
+#define MQ309_CO_m -4.7623
+#define MQ309_CO_b 6.7413
+
+#define MQ309_Alcohol_m -3.7686
+#define MQ309_Alcohol_b 5.6744
+
+/*
 const String _MQ2[18] = {"H2","-2.2459","2.9845","LPG","-2.2879","2.7901","CO","-2.6208","3.6075","Alcohol","-3.1157","4.5134","Propane","-2.7028","3.5595","Benzene","-2.2879","2.7901"};
 const String _MQ3[18] = {"LPG","-3.1851","4.7048","CH4","-17.531","28.785","CO","-4.339","6.4432","Alcohol","-1.435","0.4103","Benzene","-2.7009","0.632","Hexane","-2.7268","3.6299"};
 const String _MQ4[15] = {"LPG","-2.5818","3.6303","CH4","0.9873","2.6386","CO","-5.5945","5.6693","Alcohol","-11.89","9.0375","smoke","-11.189","9.0375"};
@@ -72,6 +259,7 @@ const String _MQ131[9] = {"Nox","-2.7245","3.3004","CL2","-1.0333","1.7117","O3"
 const String _MQ135[18] = {"CO","-2.7268","2.301","Alcohol","-2.8608","1.8627","CO2","-3.2819","1.9903","Tolueno","-5.7015","1.1612","NH4","-2.2119","2.0473","Acetona","-5.9682","1.0175"};
 const String _MQ303A[9] = {"Iso-butano","-2.3543","1.144","Hydrogeno","-2.4338","0.7558","Ethanol","-2.5597","0.4436"};
 const String _MQ309A[12] = {"H2","-2.1311","3.0886","CH4","-1.6554","2.985","CO","-4.7623","6.7413","Alcohol","-3.7686","5.6744"};
+*/
 
 class MQUnifiedsensor
 {
@@ -97,7 +285,7 @@ class MQUnifiedsensor
   private:
     /************************Private vars************************************/
     int _pin, _type, _R0, _lecturePosInArray; 
-    String _MQ[19], _nameLectureRequeired;   
+    String  _nameLectureRequeired;   
     int _VOLT_RESOLUTION  = 5.0; // if 3.3v use 3.3
     int _RLValue = 10; //Value in KiloOhms
     int  _ratioInCleanAir, _PPM, _sensor_volt;