first_commit

ESP8266/MatrixLedsRGB/src/mqtt.hpp

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+#include <PubSubClient.h>
+// MQTT: ID, server IP, port, username and password
+const  char *MQTT_CLIENT_ID = "matrix_client";
+const  char *MQTT_SERVER_IP = "192.168.1.105";
+const  uint16_t MQTT_SERVER_PORT = 1883;
+const  char *MQTT_USER = "mdchaparror";
+const  char *MQTT_PASSWORD = "un80187452";
+const  char *MQTT_TOPIC_MENSAJE = "matrix/mensaje";
+const  char *MQTT_TOPIC_RGB = "matrix/rgb";
+
+
+WiFiClient wifiClient;
+PubSubClient client(wifiClient);
+String getValue(String data, char separator, int index);
+
+void callback(char *p_topic, byte *p_payload, unsigned int p_length)
+{
+  // concat the payload into a string
+  String payload;
+  for (uint8_t i = 0; i < p_length; i++)
+  {
+    payload.concat((char)p_payload[i]);
+  }
+
+  if (String(MQTT_TOPIC_MENSAJE).equals(p_topic))
+  {
+    mensaje = String(payload);
+    texto = mensaje + " " + hora;
+    x = matrix.width();
+    longitud = texto.length() * 5 + 64;
+  }
+  if (String(MQTT_TOPIC_RGB).equals(p_topic))
+  {
+    String rgb  = String(payload);
+    R = getValue(rgb,',',0).toInt();
+    G = getValue(rgb,',',1).toInt();
+    B = getValue(rgb,',',2).toInt();
+    texto = mensaje + " " + hora;
+    x = matrix.width();
+    longitud = texto.length() * 5 + 64;
+  }
+  
+
+
+
+}
+
+void reconnect()
+{
+  while (!client.connected())
+  {
+    if (client.connect(MQTT_CLIENT_ID, MQTT_USER, MQTT_PASSWORD))
+    {
+      Serial.println("INFO: connected");
+      client.subscribe(MQTT_TOPIC_MENSAJE);
+      client.subscribe(MQTT_TOPIC_RGB);
+    }
+    else
+    {
+      Serial.print("ERROR: failed, rc=");
+      Serial.print(client.state());
+      Serial.println("DEBUG: try again in 5 seconds");
+    }
+  }
+}
+
+void mqtt_init()
+{
+  client.setServer(MQTT_SERVER_IP, MQTT_SERVER_PORT);
+  client.setCallback(callback);
+}
+
+String getValue(String data, char separator, int index)
+{
+  int found = 0;
+  int strIndex[] = {0, -1};
+  int maxIndex = data.length()-1;
+
+  for(int i=0; i<=maxIndex && found<=index; i++){
+    if(data.charAt(i)==separator || i==maxIndex){
+        found++;
+        strIndex[0] = strIndex[1]+1;
+        strIndex[1] = (i == maxIndex) ? i+1 : i;
+    }
+  }
+
+  return found>index ? data.substring(strIndex[0], strIndex[1]) : "";
+}