Add hardware support for GPS, MAX7219, BME280, and MQ7 sensors

- Implemented GPS functionality with initialization and reading latitude and longitude.
- Added MAX7219 display support, including initialization, text display, animation control, and brightness settings.
- Integrated BME280 sensor for reading temperature, pressure, and humidity.
- Developed MQ7 sensor interface for reading gas concentration values.
- Created HTTP client for GET and POST requests.
- Implemented MQTT client for message handling and connection management.
- Added JSON serialization and deserialization functions for sensor and actuator data.
- Established WiFi connection setup for network communication.

hardware/src/main.cpp

@@ -2,17 +2,70 @@
 
 const uint32_t deviceId = getChipID();
 
-// instances
-HTTPClient httpClient;
+extern HTTPClient httpClient; // HTTP client object
+String response; // HTTP Response
+float sensorVolt, sensorValue, RSAir, R0; // MQ7 vars
+float temperature, pressure, humidity; // BME280 vars
+float lon, lat; // GPS vars
+extern MD_Parola display; // Display object
 
-// HTTP Request
-String response;
+void setup()
+{
+    Serial.begin(9600);
 
-// MQ7
-float sensorVolt, sensorValue, RSAir, R0;
+    Serial.println("Iniciando...");
+    MQ7_Init();
+    Serial.println("Sensor MQ7 inicializado");
+    BME280_Init();
+    Serial.println("Sensor BME280 inicializado");
+    GPS_Init();
+    Serial.println("GPS inicializado");
+    MAX7219_Init();
+    Serial.println("Display inicializado");
 
-// BMP280
-float temperature, pressure, altitude;
+    prettyReadBME280();
+    prettyReadMQ7();
+    testMatrix();
+}
+
+void loop()
+{
+    
+}
+
+void prettyReadMQ7()
+{
+    Serial.println("Leyendo sensor MQ7...");
+    MQ7_Read(sensorVolt, RSAir, R0, sensorValue);
+    Serial.print("\t - Voltaje: "); Serial.print(sensorVolt); Serial.print("V\r\n");
+    Serial.print("\t - Valor sensor: "); Serial.print(sensorValue); Serial.print("\r\n");
+    Serial.print("\t - Resistencia aire: "); Serial.print(RSAir); Serial.print("kOhm\r\n");
+    Serial.print("\t - Resistencia aire: "); Serial.print(R0); Serial.print("kOhm\r\n");
+    Serial.print("\t - Concentración CO: "); Serial.print(sensorValue); Serial.print("ppm\r\n");
+}
+
+void prettyReadBME280()
+{
+    Serial.println("Leyendo sensor BME280...");
+    BME280_Read(pressure, temperature, humidity);
+    Serial.print("\t - Presión: "); Serial.print(pressure/100); Serial.print("hPa\r\n");
+    Serial.print("\t - Temperatura: "); Serial.print(temperature); Serial.print("°C\r\n");
+    Serial.print("\t - Humedad: "); Serial.print(humidity); Serial.print("%\r\n");
+}
+
+void prettyReadGPS()
+{
+    Serial.println("Leyendo GPS...");
+    GPS_Read(lat, lon);
+    Serial.print("\t - Latitud: "); Serial.print(lat); Serial.print("\r\n");
+    Serial.print("\t - Longitud: "); Serial.print(lon); Serial.print("\r\n");
+}
+
+void testMatrix()
+{
+    Serial.println("Escribiendo en el display...");
+    MAX7219_DisplayText("Prueba de texto", PA_LEFT, 100, 500);
+}
 
 uint32_t getChipID()
 {
@@ -22,28 +75,4 @@ uint32_t getChipID()
         chipId |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i;
     }
     return chipId;
-}
-
-void setup()
-{
-    Serial.begin(9600);
-
-    /*// WiFi Connection
-    if(setupWifi() != 0)
-    {
-        Serial.print("Error connecting to WiFi");
-    }
-
-    // test get
-    getRequest(httpClient, "http://172.20.10.7:8082/api/v1/sensors/1/values", response);
-    deserializeSensorValue(httpClient, httpClient.GET()); */
-
-    BME280_Init();
-
-}
-
-void loop()
-{
-    Serial.println(temperature);
-    Serial.println(pressure);
-}
+}