Refactor MQ7 sensor implementation: remove old files and introduce MQ7v2 with updated reading logic

hardware/include/MQ7.hpp

@@ -1,8 +0,0 @@
-#include <Arduino.h>
- 
-#define HEATER_PIN 16
-#define SENSOR_PIN 34
-
-void MQ7_Init();
-void MQ7_Read(float &sensorValue);
-void pwmBitBang(int totalMs, int highPct, int cycleMs);

hardware/include/MQ7v2.hpp

@@ -0,0 +1,10 @@
+#include <Arduino.h>
+
+#define MQ7_PIN 34
+#define VCC 5.0
+#define ADC_RES 1023.0
+#define RL 10000.0     // 10kΩ
+#define RO 10000.0     // Resistencia del aire limpio
+
+void MQ7_Init();
+void MQ7_Read(float &sensorValue);

hardware/include/main.hpp

@@ -11,7 +11,7 @@
 #include "BME280.hpp"
 #include "GPS.hpp"
 #include "MAX7219.hpp"
-#include "MQ7.hpp"
+#include "MQ7v2.hpp"
 
 uint32_t getChipID();
 void prettyReadMQ7();