ESP32 MQTT Home Automation Hub Kit – Control 4 Appliances and Monitor Environment from Anywhere

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine turning your study lamp on with a tap on your phone or checking room temperature from the school bus. This kit lets you build a complete MQTT-based home automation hub: the ESP32 subscribes to commands from any MQTT client (phone, dashboard, cloud) and switches up to four appliances via a relay module, while simultaneously publishing DHT22 temperature and humidity readings to separate MQTT topics. It’s the exact architecture used in modern IoT dashboards and smart home controllers.

What You'll Build

You’ll wire and programme an ESP32 that connects to your Wi-Fi network and communicates with an MQTT broker. The 4‑channel relay module controls lights, fans, or any low‑voltage appliance, while the 0.96‑inch OLED displays local status. The DHT22 sensor continuously publishes environmental data, giving you a real‑time feed viewable on any MQTT‑compatible dashboard like Node‑RED or Home Assistant.

What You'll Learn

• Implement the MQTT publish/subscribe protocol on ESP32 for bidirectional communication
• Interface a multi‑channel relay module with flyback diodes for safe appliance switching
• Read and publish DHT22 sensor data with JSON payloads over MQTT topics
• Design a local OLED display to show connection status, relay states, and sensor values

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11–12 students working on IoT practicals, B.Tech ECE/EEE undergraduates prototyping a smart home mini project, and ATL Tinkering Lab mentors teaching connected devices. It’s also a strong foundation for teams preparing for Smart India Hackathon challenges that demand real‑time sensor streaming and relay actuation.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.