ESP32 MQTT Server (Port and Password)

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ChinGuan Quek asked 2 years ago

Hi,
Would it be possible to provide advice on configuring port setting that is different form the default port 1833 and what code changes need on the two project files.
Also, if it possible, adding password to the for the Raspberry Pin broker and code changes for the two ESP32 MQTT project files.
Thanks

Question Tags: MQTT Password, MQTT Port

5 Answers

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Sara Santos Staff answered 2 years ago

Hi.
Which project or eBook are you following?
Regards,
Sara

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ChinGuan Quek answered 2 years ago

Learn ESP32 with Arduino IDE

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Sara Santos Staff answered 2 years ago

Hi.
To add password and user to the Mosquitto MQTT broker, you need to follow this tutorial: https://randomnerdtutorials.com/how-to-install-mosquitto-broker-on-raspberry-pi/

To change port on the ESP32 code, change on the following line:

#define MQTT_PORT 1883

You can insert the MQTT username and password on the ESP32 code after the following line:

mqttClient.setServer(MQTT_HOST, MQTT_PORT);

Add:

mqttClient.setCredentials("REPlACE_WITH_YOUR_USER", "REPLACE_WITH_YOUR_PASSWORD");

Let me know if this helps.

Regards,
Sara

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ChinGuan Quek answered 2 years ago

Hi Sara,
While awaiting your reply, I stumble upon the solution as you have advised. It worked.
At the Raspberry Pi, MQTT server end, the port, user and password has to be configured to match that set in here
Thanks for your advice.

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Sara Santos Staff answered 2 years ago

That’s great!
I’ll mark this issue as resolved.
If you need further help, you just need to open a new question in our forum.
Regards,
Sara