Weihnachtsangebot 2025! 🎄

[Qax1]

@mcu
Ok... erledigt... jetzt kommt :

Arduino: 1.8.13 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), 4MB (FS:2MB OTA:~1019KB), 2, v2 Lower Memory, Disabled, WIFI, Only Sketch, 115200"

C:\Users\Stefan\Documents\Arduino\MQTT-TEST-1\MQTT-TEST-1.ino: In function 'void connect()':

MQTT-TEST-1:40:35: error: invalid operands of types 'const char [10]' and 'const char [3]' to binary 'operator+'

client.subscribe(client_name + "/+");

                               ^

MQTT-TEST-1:41:33: error: invalid operands of types 'const char [10]' and 'const char [7]' to binary 'operator+'

client.publish(client_name + "/alive","true");

                             ^

C:\Users\Stefan\Documents\Arduino\MQTT-TEST-1\MQTT-TEST-1.ino: In function 'void loop()':

MQTT-TEST-1:75:34: error: invalid operands of types 'const char [10]' and 'const char [14]' to binary 'operator+'

 client.publish(client_name + "/InternalTemp",String(c));

                              ^

MQTT-TEST-1:81:6: error: 'werteCount' was not declared in this scope

  werteCount = 0;

  ^

MQTT-TEST-1:86:35: error: invalid operands of types 'const char [10]' and 'const char [16]' to binary 'operator+'

  client.publish(client_name + "/connectProblem","Verbindungsproblem gehabt");

                               ^

exit status 1

invalid operands of types 'const char [10]' and 'const char [3]' to binary 'operator+'

Dieser Bericht wäre detaillierter, wenn die Option
"Ausführliche Ausgabe während der Kompilierung"
in Datei -> Voreinstellungen aktiviert wäre.

[Qax1]

@MCU

Ich weiß nicht ob s was zu sagen hat,
aber ich habe in IObroker im MQTT-Adapter
keinen Namen / Passwort vergeben.

[MCU]

@mcu Eins nachdem anderen:

1. String MCUName = "SensorMax"; einfügen nach #define client_name
2. werteCount = 0; Zeile komplett löschen
3. bei client.subscribe(client_name : client_name durch MCUName ersetzen
4. und bei allen client.publish(client_name : client_name durch MCUName ersetzen
5. beim client.connect"MQTTUser","MQTTPassword" -> "",""

[Qax1]

@mcu

:+1:
Komplieren läuft jetzt komplett durch...

[MCU]

@qax1 Dann schick mir mal das komplette Script.

[Qax1]

@mcu ```
#include <Wire.h>
#include <SPI.h>
#include "Adafruit_MAX31855.h"
#include <ESP8266WiFi.h>

#include <MQTT.h>

#define CLK 14 //connect CLK to GPIO14
#define CS 5 //connect CS to GPIO5
#define DO 12 //connect DO to GPIO12

#define client_name "SensorMAX"
String MCUName = "SensorMax";

const char ssid[] = "xyz";
const char pass[] = "xxxxxxxxxxxxxxxxx";
String Nachricht_MQTT = "";
String Topic_MQTT = "";

Adafruit_MAX31855 thermocouple(CLK,CS,DO);

WiFiClient net;
MQTTClient client;

void connect() {
Serial.print("\nchecking wifi...");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(1000);
}
Serial.print("\nconnecting...");
while (!client.connect(client_name,"MQTTUser","MQTTPassword")) {
Serial.print(".");
delay(1000);
}
Serial.print("\nconnected!");

client.subscribe(MCUName + "/+");
client.publish(MCUName + "/alive","true");

}

void messageReceived(String &topic, String &payload) {
Serial.println("MQTT incoming: " + topic + " - " + payload);
Topic_MQTT = topic;
Nachricht_MQTT = payload;

topic = "";
payload = "";
}

void setup() {
Serial.begin(9600);
Serial.println("MAX31855 testing");
delay(500);
WiFi.begin(ssid, pass);
client.begin("192.168.178.30",1883,net); //192.168.178.45
connect(); //alive wird gesendet
client.onMessage(messageReceived);

}

void loop() {
Serial.print("Internal Temp = ");
Serial.println(thermocouple.readInternal());
delay(100);
double c = thermocouple.readCelsius();
if (isnan(c)) {
Serial.println("Something wrong with thermocouple!");
} else {
Serial.print("C = ");
Serial.println(c);
client.publish(MCUName + "/InternalTemp",String(c));
}
client.loop();
if (!client.connected()) {
Serial.println("Neustart!");
delay(200);
WiFi.begin(ssid, pass);
client.begin("http://192.168.178.30",1883,net);
connect(); //alive wird gesendet
client.onMessage(messageReceived);
client.publish(MCUName + "/connectProblem","Verbindungsproblem gehabt");
}
delay(1000);
}

[MCU]

@qax1 sagte in NODEmcu K-Type Temp-Fühler in IObroker !?:

Serial.print("\nconnecting...");
while (!client.connect(client_name,"MQTTUser","MQTTPassword")) {

Serial.print("\nconnecting...");
while (!client.connect(client_name,"MQTTUser","MQTTPassword")) {

noch ändern -> "",""

Code-tags - erste Zeile frei lassen , sonst versteht er das nicht.

client.begin("http://192.168.178.30",1883,net); ->client.begin("192.168.178.30",1883,net);
das http:// entfernen

[Qax1]

@mcu
Ok... erledigt

[MCU]

@qax1 Dann zeig nochmal, aber erste Zeile frei lassen-> Return und dann erst Code-Tag (</>).

[Qax1]

@mcu

#include <Wire.h>
#include <SPI.h>
#include "Adafruit_MAX31855.h"
#include <ESP8266WiFi.h>

#include <MQTT.h>


#define CLK 14          //connect CLK to GPIO14
#define CS 5             //connect CS to GPIO5
#define DO 12           //connect DO to GPIO12

#define client_name "SensorMAX"
String MCUName = "SensorMax";

const char ssid[] = "xyz";
const char pass[] = "xxxxxxxxxxxxxxxxxxx";
String Nachricht_MQTT = "";
String Topic_MQTT = "";



Adafruit_MAX31855 thermocouple(CLK,CS,DO);

WiFiClient net;
MQTTClient client;

void connect() {
   Serial.print("\nchecking wifi...");
   while (WiFi.status() != WL_CONNECTED) {
     Serial.print(".");
     delay(1000);
   }
   
   Serial.print("\nconnecting...");
   while (!client.connect(client_name,"MQTTUser","MQTTPassword")) {
     Serial.print(".");
     delay(1000);
   }
   
   Serial.print("\nconnected!");
    
   client.subscribe(MCUName + "/+");
   client.publish(MCUName + "/alive","true");
   
}

void messageReceived(String &topic, String &payload) {
 Serial.println("MQTT incoming: " + topic + " - " + payload);
 Topic_MQTT = topic;
 Nachricht_MQTT = payload;
 
 topic = "";
 payload = "";
}

void setup() {
 Serial.begin(9600); 
 Serial.println("MAX31855 testing");
 delay(500);
 WiFi.begin(ssid, pass);
 client.begin("192.168.178.30",1883,net); //192.168.178.45
 connect(); //alive wird gesendet
 client.onMessage(messageReceived);

}

void loop() {
  Serial.print("Internal Temp = ");
  Serial.println(thermocouple.readInternal());
  delay(100);
  double c = thermocouple.readCelsius();
  if (isnan(c)) {
    Serial.println("Something wrong with thermocouple!");
  } else {
    Serial.print("C = ");
    Serial.println(c);
    client.publish(MCUName + "/InternalTemp",String(c));
  }
  client.loop();
  if (!client.connected()) {
     Serial.println("Neustart!");
     delay(200);
     WiFi.begin(ssid, pass);
     client.begin("192.168.178.30",1883,net);
     connect(); //alive wird gesendet
     client.onMessage(messageReceived);
     client.publish(MCUName + "/connectProblem","Verbindungsproblem gehabt");
  }
  delay(1000);
}

[MCU]

@qax1 sagte in NODEmcu K-Type Temp-Fühler in IObroker !?:

while (!client.connect(client_name,"MQTTUser","MQTTPassword"))

Immer noch nicht geändert:
while (!client.connect(client_name,"MQTTUser","MQTTPassword")) -> while (!client.connect(client_name,"",""))

[Qax1]

@mcu sagte in NODEmcu K-Type Temp-Fühler in IObroker !?:

while (!client.connect(client_name,"",""))

 
   Serial.print("\nconnecting...");
   while (!client.connect(MCUName,"","")) {
     Serial.print(".");
     delay(1000);

so ?

[MCU]

@qax1
while (!client.connect(MCUName,"","")) {
dort nicht den client_name ersetzen!

while (!client.connect(client_name,"",""))

[Qax1]

@mcu

   
   Serial.print("\nconnecting...");
  while (!client.connect(client_name,"","")) {
     Serial.print(".");
     delay(1000);

ok

[MCU]

@qax1 Dann lass mal laufen. Kommt im ioBroker MQTT was an?
Sonst zeige die Einstellungen zum MQTT-Adapter.
Meine sind:

[Qax1]

@mcu

Sau Geil es läuft....

Ich kann dir gar nicht genug Danken....
Das hätte ich alleine wohl nie hinbekommen :beers: :beers: :beers:

[MCU]

@qax1

Und dann bitte im ersten Post die Überschrift anpassen [gelöst] NODEmcu....

[Qax1]

@mcu

Nochmal vielen Dank @mcu für deine Hilfe...

Hier ein Bild vom gestrigen Probeheitzen,
bin echt überrascht, mit über 600 °C hätte ich nicht gerechnet.
Muss die Tage mal gegenmessen.