Fixed bit comparation to strin

examples/ESP8266/ESP8266.ino

@@ -24,12 +24,12 @@
 #include <MQUnifiedsensor.h>
 /************************Hardware Related Macros************************************/
 #define         Board                   ("Arduino UNO")
-#define         Pin                     (A3)  //Analog input 3 of your arduino
+#define         Pin                     (A0)  //Analog input 3 of your arduino
 /***********************Software Related Macros************************************/
 #define         Type                    ("MQ-3") //MQ3
 #define         Voltage_Resolution      (3.3) // 3V3 <- IMPORTANT
 #define         ADC_Bit_Resolution      (10) // For arduino UNO/MEGA/NANO
-
+#define         RatioMQ3CleanAir        (60)
 /*****************************Globals***********************************************/
 MQUnifiedsensor MQ3(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin, Type);
 /*****************************Globals***********************************************/

src/MQUnifiedsensor.cpp

@@ -80,7 +80,7 @@ void MQUnifiedsensor::serialDebug(bool onSetup)
     Serial.print("R0: "); Serial.print(_R0); Serial.println(" KΩ");
     Serial.print("RL: "); Serial.print(_RL); Serial.println(" KΩ");
 
-    Serial.print("Model: "); if(_regressionMethod == "Exponential") Serial.println("Exponential"); else Serial.println("Linear");
+    Serial.print("Model: "); if(_regressionMethod == 1) Serial.println("Exponential"); else Serial.println("Linear");
     Serial.print(_type); Serial.print(" -> a: "); Serial.print(_a); Serial.print(" | b: "); Serial.println(_b);
 
     Serial.print("Development board: "); Serial.println(_placa);