Initial code

data/homie/config.json

@@ -0,0 +1,16 @@
+{
+    "name": "HOSTNAME",
+    "device_id": "HOSTNAME",
+    "wifi": {
+    "ssid": "WIFISSID",
+    "password": "WIFIPASS"
+    },
+    "mqtt": {
+    "host": "raum.ctdo.de",
+    "port": 1883,
+    "auth": false
+    },
+    "ota": {
+    "enabled": true
+    }
+}

platformio.ini

@@ -12,3 +12,8 @@
 platform = espressif8266
 board = d1_mini
 framework = arduino
+lib_deps = 
+        https://github.com/homieiot/homie-esp8266
+#        bblanchon/ArduinoJson
+upload_speed = 1500000
+monitor_speed = 115200

src/main.cpp

@@ -1,9 +1,29 @@
-#include <Arduino.h>
+#include <Homie.h>
+#include <ArduinoOTA.h>
+
+//D4 auf ground macht led leuchten
+
+#define PIN_LED D4
+
+HomieNode knobNode("blinky", "blinky", "commands");
 
 void setup() {
-  // put your setup code here, to run once:
+  Serial.begin(115200);
+  Serial << endl << endl;
+
+  pinMode(PIN_LED, OUTPUT);
+
+  Homie_setFirmware("blinky", "0.1.0");
+
+  Homie.setup();
+  ArduinoOTA.setHostname(Homie.getConfiguration().deviceId);
+  ArduinoOTA.onStart([]() {
+    Homie.getLogger() << "Arduino OTA angefragt" << endl;
+  });
+  ArduinoOTA.begin();
 }
 
 void loop() {
-  // put your main code here, to run repeatedly:
+  Homie.loop();
-}
+  ArduinoOTA.handle();
+}