/****************************************************************/
//  https://myhomethings.eu
//  NodeMCU 1.0(ESP-12E Module)
//  Flash size: 4M (1M SPIFFS)
/****************************************************************/
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <IRremoteESP8266.h>
#include <IRsend.h>
const char* ssid = "WIFI-ssid";             //SSID meines WLAN Netzes eintragen
const char* password = "WIFI-password";     // mein WLAN Passwort eintragen
const char* mqtt_server = "192.168.xx.xx";  // ioBroker ip address
int IrLed = D2;
WiFiClient espClient;
PubSubClient client(espClient);
IRsend irsend(IrLed);
void setup()
{
 WiFi.mode(WIFI_STA);
 WiFi.begin(ssid, password);
 while (WiFi.status() != WL_CONNECTED)
 {
   delay(500);
 }
 client.setServer(mqtt_server, 1883);
 client.setCallback(callback);
 irsend.begin();
}
void loop()
{
 if (!client.connected())
 {
   reconnect();
 }
 client.loop();
}
void callback(char* topic, byte* payload, unsigned int length)
{
 payload[length] = '\0';
 String strTopic = String(topic);
 String strPayload = String((char * ) payload);
 if(strTopic == "Infrared_topic")  // Ggf. andere Bezeichnung festlegen *
 {                                 //fuer spätere unterscheidung
   if(strPayload == "false")
   {
     irsend.sendRC5(0x4C, 12); //Meinen ermittelnden IR-Code eintragen
   }
   if (strPayload == "true")
   {
     irsend.sendRC5(0x4C, 12);  //Weiteren ermittelnder IR-Code eintragen
   }
 }
}
void reconnect()
{
 while (!client.connected())
 {
   String clientId = "ESP8266_IR";
   if (client.connect(clientId.c_str()))
   {
     client.subscribe("Infrared_topic");  //Ggf. aendern w.o. *
   }
   else
   {
     delay(6000);
   }
 }
}