cyijun / esp32mqttclient Goto Github PK

When trying to compile it for an ESP32-WROOM-32, I get following error:

#error "This library only supports boards with an AVR, SAM, SAMD, NRF52 or STM32F4 processor."

I thought this lib is for the ESP32?

i now use PubSubClient v2.8 for a ESP32-S3 Arduno IDE project
and want use TLS with HIVEMQ FREE ACCOUNT

possible?

Currently, the ESP32MQTTClient library only provides a publish method that accepts String type for both topic and payload. While this is suitable for text-based messages, it poses a problem when trying to publish binary data, such as image or sensor data, as it leads to potential data corruption and incorrect interpretation.

To address this issue, I kindly request the addition of a new publish method or an enhancement to the existing one to support binary payloads. This new method should accept a pointer to the binary data along with its length, allowing for the direct transmission of binary content over the MQTT protocol.

By doing so, the library will become more versatile and suitable for a wider range of applications that require the transmission of non-textual data.

Thank you for considering this enhancement to the ESP32MQTTClient library. Your efforts in creating and maintaining this library are highly appreciated, and I look forward to seeing this feature implemented in a future version.

Best regards, Kyour

@cyijun please create a new 0.2.0 release with the latest changes for CA cert, client cert and client keys so I can use them automatically with the Arduino IDE.

Thanks!!

hi,

i've been messing around with this library and its pretty great for what i need it for, however i cant seem to get any of the isConnected(), isWifiConnected(),isMqttConnected() options to work at all.

they just sit there and never connect. if i remove those options and just let it try and connect without those checks then it connects just fine. but i would like to do different things if the wifi or mqtt connections fail or disconnect.

here is a basic example of how I've tried to get it working.

void loop () {
  bool USB = bdl.getVbusPresent();
  while(USB == true){
    if(client.isConnected()){
     Serial.println("MQTT Connected");
      if (lostPower == 1){
        lostPowerCounter = lostPowerCounter+1;
        delay(2000);
        readFile(SD, "/backup.txt");
        deleteFile(SD,"/backup.txt");
        Serial.println("Backup Dumped to MQTT");
    }

      lostPower = 0;
      sendMQTT();
      delay(1000);
    }
    else{
       Serial.print("Connecting");
      for(int i = 0; i < 50; i++){
      delay(500);  // Wait for half a second
      Serial.print(".");
      }
      Serial.println("");
      }
    }    
}

if tried it with !isConnected() for false detection, ive tried isConnected() == false; and vise versa for connected. is there something im doing wrong here?

thanks!

Keinerlei Funktion
Egal was man für eine ip eingibt, es funktioniert nicht.
MQTT_CLIENT: There are no transports valid, stop mqtt client, config scheme = http