ESP32 Industrial Relay Control Kit
Build an Industrial Web-Controlled Relay Switch with the ESP32 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 turning your lights, fans, or any appliance on and off from a web browser on your phone or laptop. This beginner-friendly ESP32 kit teaches you to build a 4-channel relay controller with a custom web interface — complete with device naming and live status indicators. It’s a real industrial automation project scaled down for learning, perfect for students and hobbyists exploring IoT.
What You'll Build
A fully functional, browser-based relay control system. You’ll wire an ESP32 to a 4-channel relay module, program a web server that serves a clean, interactive page. From that page, you can toggle each relay independently, assign custom labels like “Pump” or “Heater,” and see whether each channel is active — just like in a factory SCADA interface, but on a breadboard.
What You'll Learn
- Set up an ESP32 as a web server and handle HTTP requests to control hardware
- Safely drive a 4-channel relay module using diodes and I/O pins
- Create dynamic HTML interfaces with toggle buttons and live status indicators
- Store and display user-defined device labels for each relay channel
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| 4-ch Relay Module | x1 |
| 1N4007 Diode | x5 |
| 5mm LED | x4 |
| 220Ω Resistors | x5 |
| 10kΩ Resistors | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x20 |
| Micro USB Cable | x1 |
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
This kit is built for India’s curious minds: CBSE Class 11–12 students building IoT projects for practical exams, B.Tech ECE/EEE freshmen at IITs, NITs, and VIT getting hands-on with embedded systems, ATL Tinkering Lab innovators designing smart home prototypes, and young hobbyists aged 10 and up who want to move beyond blinking LEDs to real-world control.
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 on the box to launch the AI companion trained on this exact kit. It covers wiring, code, and debugging. You can also send a photo on WhatsApp for human backup.
Can I control appliances like a 220V fan or light bulb with this kit?
Yes, the 4-channel relay module can switch AC loads up to 250V AC / 10A. You'll need to wire the live line through the relay's COM-NO terminals safely, under adult supervision.
Do I need to solder anything?
No soldering is required. The kit uses a breadboard and pre-terminated jumper wires, making it entirely plug-and-play.
Is this kit suitable for a complete beginner who hasn't used ESP32 before?
Absolutely. The AI companion walks you through installing the ESP32 board in Arduino IDE, uploading the code, and connecting the hardware step by step. No prior experience needed.
Industrial Automation — ESP32 web page controls 4 relay channels from browser. Shows relay state and allows named device labels.
What's in this kit
- ESP32 Dev Board
- 4-ch Relay Module
- 1N4007 Diode x5
- 5mm LED x4
- 220Ω Resistors x5
- 10kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- Micro USB Cable
Other projects you can build
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