Refactor project structure: update Java version, remove MQ7 files, and add BMP280 support

hardware/src/MQ7.cpp

@@ -1,31 +0,0 @@
-#include "MQ7.hpp"
-
-float sensor_volt;
-float RS_air; 
-float R0;  
-float sensorValue;
-
-void MQ7_init() {
-    pinMode(digitalMQ7, INPUT);
-    pinMode(analogMQ7, INPUT);
-}
-
-void MQ7_read() {
-    analogWrite(analogMQ7, 1023);
-    delay(60000);
-    analogWrite(analogMQ7, (1023/5)*1.4 );
-
-    for(int i = 0; i<100; i++){
-        sensorValue = sensorValue + analogRead(analogMQ7);
-        delay(90000);
-    }
-
-    sensorValue = sensorValue/100.0;
-    sensor_volt = sensorValue/1024*5.0;
-    RS_air = (5.0-sensor_volt)/sensor_volt;
-    R0 = RS_air/(26+(1/3));
-
-    Serial.print("R0 = ");
-    Serial.println(R0);
-    delay(1000);
-}

hardware/src/MqttClient.cpp

@@ -1,4 +1,4 @@
-#include "mqtt.hpp"
+#include "MqttClient.hpp"
 
 // MQTT configuration
 WiFiClient espClient;

hardware/src/main.cpp

@@ -1,8 +1,19 @@
 #include "main.hpp"
 
 const uint32_t deviceId = getChipID();
-String response;
+
+// instances
 HTTPClient httpClient;
+BMP280_DEV bme;
+
+// HTTP Request
+String response;
+
+// MQ7
+float sensorVolt, sensorValue, RSAir, R0; 
+
+// BMP280
+float temperature, humidity, pressure, altitude;
 
 uint32_t getChipID()
 {
@@ -22,13 +33,11 @@ void setup() {
         Serial.print("Error connecting to WiFi");
     }
 
-    MQ7_init();
-
     // test get
     getRequest(httpClient, "http://172.20.10.7:8082/api/v1/sensors/1/values", response);
     deserializeSensorValue(httpClient, httpClient.GET());
 }
  
 void loop() {
-    MQ7_read();
+    
 }

hardware/src/rest.cpp

@@ -1,2 +0,0 @@
-#include "rest.hpp"
-