Uploaded January 2024 | Updated September 2026, 1 week ago

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In this video we learn how to use MQTT brokerage service to monitor temperature by publishing it to HiveMQ and subscribe to LED message to turn ON/OFF LED. Full code and wiring is explained.

This video is part of series of Tutorials for SunFounder ESP32 IoT Learning Kit which can be viewed here : bit.ly/sf-esp32-video

📚⬇️ Download and resource page robojax.com/RJT688

Related videos:
How to use a breadboard: youtu.be/jTJ-JL2gEuQ

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Use Chapters from timeline or click on the time
00:00 Start
2:05 Introduction to the project
7:06 Free HiveMQ service
7:56 Wiring explained
11:11 Arduino code explained
18:46 Selecting ESP32 board and COM port in Arduino IDE
20:30 Demonstration of HiveMQ Free broker

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