Getting Started with ESP32 & MQTT: The Complete Beginner's Guide
Read the Full Guide & Copy the Code: https://iotbhai.io/esp32-mqtt-beginne...
Part 2: Make a web dashboard - • Build a Real-Time IoT Dashboard: ESP32, MQ...
Sop using slow Web Servers for your IoT projects! In this video, we conduct a scientific speed test between HTTP vs MQTT on the ESP32 to prove why MQTT is the gold standard for Home Automation and Industrial IoT.
We don't just talk theory; we build a complete system. You will learn how to set up a professional MQTT environment using the PubSubClient library, structure your data with JSON, and implement the critical "Last Will and Testament" (LWT) feature to detect device crashes instantly.
🛠️ Tools Used:
Hardware: ESP32
Software: Arduino IDE
Debugging: MQTTX(Highly Recommended)
Broker: HiveMQ / Mosquitto
Key Topics Covered:
** ESP32 MQTT Client setup **
Publishing JSON data to topics
Subscribing to topics for control (LED ON/OFF)
Handling Wi-Fi and MQTT Reconnection
Real-time IoT Dashboard testing
** Timestamps **
[00:00] - Introduction: ESP32 & MQTT Experiment
[00:29] - HTTP vs. MQTT: Why use MQTT for IoT?
[01:58] - How MQTT Works (Publisher, Broker, Subscriber)
[03:47] - Circuit Diagram & Components
[04:29] - ESP32 MQTT Code Explained (PubSubClient)
[05:40] - What is Last Will & Testament (LWT)?
[08:49] - Uploading Code & Serial Monitor Check
[09:05] - Setting up MQTTX Desktop Client
[11:17] - Controlling LED from Computer (Subscribe)
[12:12] - Testing LWT: What happens when ESP32 disconnects?
Download the Code: https://github.com/ittipu/IoT_Bhai_Yo...
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