Home Automation MQTT Hub Variant 15 Kit with ESP32 + DHT22
Build a Cloud-Connected Home Automation Dashboard with This ESP32 MQTT Kit
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 controlling your fan, lights, or any appliance from a web dashboard while monitoring room temperature, humidity, and ambient light in real-time. This ESP32 MQTT kit lets you build a four-channel relay hub and sensor monitoring station that communicates over WiFi—a foundation for hackathon-winning smart home projects.
What You'll Build
You'll assemble a wireless hub subscribing to MQTT topics to switch four relays and publishing temperature, humidity, and two ambient light readings to a broker. The OLED displays local status; any MQTT client can command the system. End result: a functional IoT control panel ready for real appliances.
What You'll Learn
- MQTT protocol basics: publish, subscribe, QoS, and broker setup on a local network or cloud
- Integrating DHT22 temperature/humidity sensor and LDR light sensors with ESP32
- Driving a 4-channel relay module safely with snubber diodes for appliance control
- Displaying real-time data on a 0.96-inch OLED and building a rudimentary local dashboard
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| LDR | 2 |
| 4-ch Relay Module | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 10 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 25 |
| Micro USB Cable | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Ideal for CBSE Class 11–12 students building IoT projects, B.Tech ECE/EEE learners exploring MQTT networks, and ATL Tinkering Lab innovators. Perfect for Smart India Hackathon teams needing a ready sensor-actuator module with cloud connectivity.
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.
What if I get stuck during the build?
Scan the QR code for the AI companion; WhatsApp backup available.
Can I use this kit with Home Assistant or other smart home platforms?
Yes. Standard MQTT topics integrate with Home Assistant, OpenHAB, or Node-RED. We'll guide auto-discovery.
Does the kit include a cloud MQTT broker, or do I need my own?
Works with any broker. Setup guide for local Mosquitto or free cloud brokers included.
Are the relays safe to switch 230V AC appliances?
Rated 10A 250V AC. Use snubber diodes, adult supervision, and disconnect mains while wiring.
ESP32 subscribes and publishes to MQTT broker controlling four relay channels and reporting four sensor readings.
What's in this kit
- ESP32 Dev Board
- DHT22
- LDR x2
- 4-ch Relay Module
- 0.96in OLED
- 1N4007 Diode x5
- 10kΩ Resistors x10
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x25
- Micro USB Cable
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items