Moin,
ich hab ein Problem
ich möchte gerne ein Relais mit mqtt und einem Link steuern also z.B. "123.456.789.000/?ON"
Entweder es Funktioniert MQTT oder über Link beides nicht.
#include <ESP8266WiFi.h>
#include <PubSubClient.h>`
//---------------------BASIC SETTINGS ---------------------------
const char* ssid = "wlan"; //WiFi Name
const char* password = "12345"; //WiFi Password
const char* mqtt_server = "123.456.789.000";
int relais_pin = 14; //Pin Relais
String switch1;
String strTopic;
String strPayload;
//---------------------BASIC SETTINGS ---------------------------
WiFiServer server(80);
WiFiClient espClient;
PubSubClient client(espClient);
void setup_wifi() {
delay(10);
// WiFi connect
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void callback(char* topic, byte* payload, unsigned int length) {
payload[length] = '\0';
strTopic = String((char*)topic);
if(strTopic == "ha/pc")
{
switch1 = String((char*)payload);
if(switch1 == "ON")
{
Serial.println("ON");
digitalWrite(relais_pin, HIGH);
}
else
{
Serial.println("OFF");
digitalWrite(relais_pin, LOW);
}
}
}
void reconnect() {
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
if (client.connect("arduinoClient")) {
Serial.println("connected");
client.subscribe("ha/#");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
delay(5000);
}
}
}
void setup() {
Serial.begin(115200);
setup_wifi();
client.setServer(mqtt_server, 1883);
client.setCallback(callback);
pinMode(relais_pin, OUTPUT);
digitalWrite(relais_pin, LOW);
}
void loop() {
WiFiClient client = server.available();
if (!client) {
return;
}
while (!client.available()) {
delay(1);
}
String req = client.readStringUntil('\r');
client.flush();
if (req.indexOf("?ON") != -1) {
digitalWrite(relais_pin, HIGH);
} else if (req.indexOf("?OFF") != -1) {
digitalWrite(relais_pin, LOW);
}
if (!client.connected()) {
reconnect();
}
}
Kann mir jemand weiterhelfen??