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/.vscode/settings.json

@@ -7,10 +7,17 @@
         "functional": "cpp",
         "tuple": "cpp",
         "utility": "cpp",
-        "bmp280.h": "c"
+        "bmp280.h": "c",
+        "deque": "cpp",
+        "string": "cpp",
+        "unordered_map": "cpp",
+        "unordered_set": "cpp",
+        "vector": "cpp",
+        "string_view": "cpp",
+        "initializer_list": "cpp"
     },
     "github.copilot.enable": {
-        "*": false,
+        "*": true,
         "plaintext": false,
         "markdown": false,
         "scminput": false,

hardware/include/BME280.hpp

@@ -1,7 +1,8 @@
 #include <Wire.h>
 #include <BME280I2C.h>
 
-#define I2C_BMP280_ADDRESS 0x76
+#define I2C_BME280_ADDRESS 0x76
 
 void BME280_Init();
+bool BME280_DataReady();
 bool BME280_Read(float &pressure, float &temperature, float &humidity);

hardware/include/GPS.hpp

@@ -0,0 +1,7 @@
+#include "TinyGPSPlus.h"
+
+#define RX 4
+#define TX 5
+
+void GPS_Init();
+void GPS_Read(float &lat, float &lon);

hardware/include/MAX7219.hpp

@@ -0,0 +1,17 @@
+#include <MD_Parola.h>
+#include <MD_MAX72XX.h>
+#include <SPI.h>
+
+#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
+#define MAX_DEVICES 4 // 4 modulos 8x8
+
+#define DATA_PIN 19
+#define CS_PIN 18
+#define CLK_PIN 17
+
+void MAX7219_Init();
+void MAX7219_DisplayText(const char *text, textPosition_t align, int speed, int pause);
+void MAX7219_StartAnimation();
+void MAX7219_StopAnimation();
+void MAX7219_ClearDisplay();
+void MAX7219_SetBrightness(uint8_t brightness);

hardware/include/MQ7.hpp

@@ -4,4 +4,4 @@
 #define DIGITAL_MQ7 32
  
 void MQ7_Init();
-void MQ7_Read();
+void MQ7_Read(float &sensorVolt, float &RSAir, float &R0, float &sensorValue);

hardware/include/main.hpp

@@ -1,8 +1,7 @@
 #include <Arduino.h>
 
-#define LED 2
+#define SERVER_IP "https://contaminus.miarma.net/api/v1/"
-#define SERVER_IP "192.168.1.178"
+#define REST_PORT 443
-#define REST_PORT 80
 #define MQTT_PORT 1883
 
 #include "JsonTools.hpp"
@@ -10,5 +9,12 @@
 #include "WifiConnection.hpp"
 #include "MqttClient.hpp"
 #include "BME280.hpp"
+#include "GPS.hpp"
+#include "MAX7219.hpp"
+#include "MQ7.hpp"
 
 uint32_t getChipID();
+void prettyReadMQ7();
+void prettyReadBME280();
+void prettyReadGPS();
+void testMatrix();

hardware/platformio.ini

@@ -12,8 +12,11 @@
 platform = espressif32
 board = esp32dev
 framework = arduino
+upload_port = COM3
 lib_deps = 
 	knolleary/PubSubClient@^2.8
 	mikalhart/TinyGPSPlus@^1.0.2
 	bblanchon/ArduinoJson@^6.17.3
 	finitespace/BME280@^3.0.0
+	majicdesigns/MD_MAX72XX@^3.5.1
+	majicdesigns/MD_Parola@^3.7.3

hardware/src/BME280.cpp

@@ -1,24 +0,0 @@
-#include "BME280.hpp"
-
-BME280I2C bme;
-
-void BME280_Init()
-{
-    Wire.setPins(21, 22);
-    Wire.begin();
-    while(!bme.begin())
-    {
-        Serial.println("Could not find BME280 sensor!");
-        delay(1000);
-    }
-}
-
-bool BME280_Read(float &pressure, float &temperature, float &humidity)
-{
-    BME280::TempUnit tempUnit(BME280::TempUnit_Celsius);
-    BME280::PresUnit presUnit(BME280::PresUnit_Pa);
-    bme.read(pressure, temperature, humidity, tempUnit, presUnit);
-
-    return (temperature != 0.0f && pressure != 0.0f);
-}
-

hardware/src/lib/actuator/MAX7219.cpp

@@ -0,0 +1,35 @@
+#include "MAX7219.hpp"
+
+MD_Parola display = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
+
+void MAX7219_Init()
+{
+    display.begin();
+    display.setIntensity(1); // 0-15
+    display.displayClear();
+}
+
+void MAX7219_DisplayText(const char *text, textPosition_t align, int speed, int pause)
+{
+    display.displayText(text, align, speed, pause, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
+}
+
+void MAX7219_StartAnimation()
+{
+    display.displayAnimate();
+}
+
+void MAX7219_StopAnimation()
+{
+    display.displayReset();
+}
+
+void MAX7219_ClearDisplay()
+{
+    display.displayClear();
+}
+
+void MAX7219_SetBrightness(uint8_t brightness)
+{
+    display.setIntensity(brightness);
+}

hardware/src/lib/http/RestClient.cpp

@@ -1,7 +1,8 @@
 #include "RestClient.hpp"
 
+HTTPClient httpClient; // HTTP client object
 
-void getRequest(HTTPClient &httpClient, const String url, String &response)
+void getRequest(const String url, String &response)
 {
     httpClient.begin(url);
     int httpCode = httpClient.GET();
@@ -13,7 +14,7 @@ void getRequest(HTTPClient &httpClient, const String url, String &response)
     httpClient.end();
 }
 
-void postRequest(HTTPClient &httpClient, const String url, String &payload, String &response)
+void postRequest(const String url, String &payload, String &response)
 {
     httpClient.begin(url);
     httpClient.addHeader("Content-Type", "application/json");

hardware/src/lib/sensor/BME280.cpp

@@ -0,0 +1,34 @@
+#include "BME280.hpp"
+
+BME280I2C bme;
+
+void BME280_Init()
+{
+    Wire.setPins(21, 22);
+    Wire.begin();
+
+    BME280I2C::Settings settings(
+        BME280I2C::OSR::OSR_X1, 
+        BME280I2C::OSR::OSR_X1, 
+        BME280I2C::OSR::OSR_X1,
+        BME280I2C::Mode::Mode_Forced,  // modo forzado
+        BME280I2C::StandbyTime::StandbyTime_1000ms,
+        BME280I2C::Filter::Filter_16,
+        BME280I2C::SpiEnable::SpiEnable_False,
+        BME280I2C::I2CAddr::I2CAddr_0x76  // dirección I2C del BME280
+    );
+
+    bme.setSettings(settings);
+
+    while (!bme.begin());
+}
+
+bool BME280_Read(float &pressure, float &temperature, float &humidity)
+{
+    BME280::TempUnit tempUnit(BME280::TempUnit_Celsius);
+    BME280::PresUnit presUnit(BME280::PresUnit_Pa);
+    bme.read(pressure, temperature, humidity, tempUnit, presUnit);
+
+    return (temperature != 0.0f && pressure != 0.0f);
+}
+

hardware/src/lib/sensor/GPS.cpp

@@ -0,0 +1,22 @@
+#include "GPS.hpp"
+
+TinyGPSPlus gps;
+
+void GPS_Init()
+{
+    Serial.begin(9600);
+}
+
+void GPS_Read(float &lat, float &lon)
+{
+    if (gps.location.isValid())
+    {
+        lat = gps.location.lat();
+        lon = gps.location.lng();
+    }
+    else
+    {
+        lat = 0.0f;
+        lon = 0.0f;
+    }
+}

hardware/src/main.cpp

@@ -2,17 +2,70 @@
 
 const uint32_t deviceId = getChipID();
 
-// instances
+extern HTTPClient httpClient; // HTTP client object
-HTTPClient httpClient;
+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
+void setup()
-String response;
+{
+    Serial.begin(9600);
 
-// MQ7
+    Serial.println("Iniciando...");
-float sensorVolt, sensorValue, RSAir, R0;
+    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
+    prettyReadBME280();
-float temperature, pressure, altitude;
+    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()
 {
@@ -23,27 +76,3 @@ uint32_t getChipID()
     }
     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);
-}