Adding MQTT protocol to allow message interchange

hardware/include/README

@@ -1,37 +0,0 @@
-
-This directory is intended for project header files.
-
-A header file is a file containing C declarations and macro definitions
-to be shared between several project source files. You request the use of a
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-
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-{
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-Read more about using header files in official GCC documentation:
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-* Include Syntax
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hardware/include/main.hpp

@@ -7,3 +7,6 @@
 #include "mqtt.hpp"
 
 #define LED 2
+#define SERVER_IP "192.168.1.178"
+#define REST_PORT 80
+#define MQTT_PORT 1883

hardware/include/mqtt.hpp

@@ -0,0 +1,2 @@
+#include <WiFi.h>
+#include <PubSubClient.h>

hardware/include/wifi.hpp

@@ -1,7 +1,7 @@
 #include <WiFi.h>
 #include <PubSubClient.h>
 
-#define SSID "iPhone de Jose"
+#define SSID "Redmi Note 14 Pro 5G"
-#define PASSWORD "bombardeenlaus"
+#define PASSWORD "aitv5949"
 
 int setup_wifi();

hardware/lib/README

@@ -1,46 +0,0 @@
-
-This directory is intended for project specific (private) libraries.
-PlatformIO will compile them to static libraries and link into the executable file.
-
-The source code of each library should be placed in a separate directory
-("lib/your_library_name/[Code]").
-
-For example, see the structure of the following example libraries `Foo` and `Bar`:
-
-|--lib
-|  |
-|  |--Bar
-|  |  |--docs
-|  |  |--examples
-|  |  |--src
-|  |     |- Bar.c
-|  |     |- Bar.h
-|  |  |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
-|  |
-|  |--Foo
-|  |  |- Foo.c
-|  |  |- Foo.h
-|  |
-|  |- README --> THIS FILE
-|
-|- platformio.ini
-|--src
-   |- main.c
-
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-```
-#include <Foo.h>
-#include <Bar.h>
-
-int main (void)
-{
-  ...
-}
-
-```
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-libraries by scanning project source files.
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-More information about PlatformIO Library Dependency Finder
-- https://docs.platformio.org/page/librarymanager/ldf.html

hardware/src/mqtt.cpp

@@ -1 +1,61 @@
 #include "mqtt.hpp"
+
+// MQTT configuration
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+void OnMqttReceived(char *topic, byte *payload, unsigned int length)
+{
+    Serial.print("Received on ");
+    Serial.print(topic);
+    Serial.print(": ");
+
+    String content = "";
+
+    for (size_t i = 0; i < length; i++) {
+        content.concat((char)payload[i]);
+    }
+
+    Serial.print(content);
+    Serial.println();
+}
+
+void InitMqtt(const char * MQTTServerAddress, uint16_t MQTTServerPort)
+{
+  client.setServer(MQTTServerAddress, MQTTServerPort);
+  client.setCallback(OnMqttReceived);
+}
+
+// conecta o reconecta al MQTT
+// consigue conectar -> suscribe a topic y publica un mensaje
+// no -> espera 5 segundos
+void ConnectMqtt(const char * MQTTClientName)
+{
+  Serial.print("Starting MQTT connection...");
+  if (client.connect(MQTTClientName))
+  {
+    client.subscribe("hello/world");
+    client.publish("hello/world", "connected");
+  }
+  else
+  {
+    Serial.print("Failed MQTT connection, rc=");
+    Serial.print(client.state());
+    Serial.println(" try again in 5 seconds");
+
+    delay(5000);
+  }
+}
+
+// gestiona la comunicación MQTT
+// comprueba que el cliente está conectado
+// no -> intenta reconectar
+// si -> llama al MQTT loop
+void HandleMqtt(const char * MQTTClientName)
+{
+  if (!client.connected())
+  {
+    ConnectMqtt(MQTTClientName);
+  }
+  client.loop();
+}

hardware/src/rest.cpp

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

hardware/test/README

@@ -1,11 +0,0 @@
-
-This directory is intended for PlatformIO Test Runner and project tests.
-
-Unit Testing is a software testing method by which individual units of
-source code, sets of one or more MCU program modules together with associated
-control data, usage procedures, and operating procedures, are tested to
-determine whether they are fit for use. Unit testing finds problems early
-in the development cycle.
-
-More information about PlatformIO Unit Testing:
-- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html