Mobiler Alarmgeber mit ESP8266 einfach erstellen

// MQTT ist im Status Qos 0
// Werte werden per Javascript bereitgestellt
// Abschließend als finale Version werden alle Serial.print deaktiviert

#include <ESP8266WiFi.h>
#include <PubSubClient.h>

const char* ssid = "Accesspointname";
const char* password = "Password";
const char* mqtt_server = "10.10.10.2";

WiFiClient espClient;
PubSubClient client(espClient);
unsigned long lastMsg = 0;
#define MSG_BUFFER_SIZE	(50)
char msg[MSG_BUFFER_SIZE];
int value = 0;

void setup_wifi() {

  delay(10);
  // We start by connecting to a WiFi network
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA);
  WiFi.hostname("ESPStatusLED");
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  randomSeed(micros());

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);//empfangener Wert
  Serial.print("] ");
  String Fensterstatus = "";
  for (int i = 0; i < length; i++) { Fensterstatus = Fensterstatus + (char)payload[i];
    }
  Serial.print(Fensterstatus);
  Serial.println();
  
  if (Fensterstatus.equals("offen")) { 
Serial.print("jetzt mach was");
 digitalWrite(5, HIGH);   // turn the LED on (HIGH is the voltage level)
 delay(10000);                       // wait for a second
 digitalWrite(5, LOW);    // turn the LED off by making the voltage LOW
 delay(1000); 
}
ESP.deepSleep(5e6); hier 5 Sek Tiefschlaf / maximum ist 4294967295us, etwa 71 Minuten
}

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Create a random client ID
    String clientId = "ESP8266Client-BKF";
    clientId += String(random(0xffff), HEX);
    // Attempt to connect
    //if (client.connect(clientId.c_str())) {
    if (client.connect("arduinoClientname", "mqttusername", "geheimespassword")) {
      Serial.println("connected");
      // Once connected, publish an announcement...
      client.subscribe("Fensterstatus/Bastelkellerfenster");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}

void setup() {
  pinMode(5, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
  Serial.begin(115200);    // wird in der Finalen Version deaktiert
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  client.setCallback(callback);
}

void loop() {

  if (!client.connected()) {
    reconnect();
  }
  client.loop();
}

on({id: "deconz.0.Sensors.11.open", change: "ne"}, function (obj) { UpdateLEDStatus(); });
function UpdateLEDStatus()
{
var Fensterstatus = "zu";
// Status Bastelkellerfenster
Fensterstatus = "zu";
if ( getState("deconz.0.Sensors.11.open").val == true ) { Fensterstatus = "offen"; }
setState('mqtt.0.Fensterstatus.Bastelkellerfenster', Fensterstatus ); 
}