ESP32 WiFi Relay Controller Kit with ESP32 + Relay
ESP32 WiFi Relay Controller Kit: Control Appliances from Your Browser
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 four home appliances—lights, fans, or water pumps—directly from a web page on your phone, with clear ON/OFF toggles and custom labels like “Living Room Fan.” This kit turns that idea into reality. You’ll assemble an ESP32-powered WiFi relay controller with a clean browser dashboard, no cloud accounts or extra apps needed. It’s a practical project that demystifies how IoT devices connect hardware to software, perfect for first-time makers or classroom demonstrations.
What You'll Build
A fully functional 4-channel relay controller with a live web interface. Each relay channel can be toggled independently from any device on the same WiFi network. The web page displays real-time relay states and lets you name each channel—so you can instantly see whether the “Study Lamp” is on or off, and switch it with one tap.
What You'll Learn
- Program an ESP32 to serve a web page and handle relay commands via HTTP
- Wire a 4‑channel relay module with protective diodes and status LEDs
- Craft a simple HTML interface with device labeling and live status feedback
- Debug serial communication and WiFi connectivity in an embedded IoT project
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
Ideal for curious learners (ages 10+) eager to see hardware respond to a web click. CBSE Class 11–12 students can use it to understand networking and embedded systems, while B.Tech ECE/EEE first‑years gain hands‑on IoT experience without expensive lab equipment. It’s also a ready‑made project for ATL Tinkering Labs and Smart India Hackathon participants who need a working relay automation base in under three hours.
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 to talk to our AI companion; it knows every connection and line of code for this relay controller. You can also send photos via WhatsApp for human guidance.
Can I control this without internet?
Yes—the web interface runs entirely on your local WiFi network. Once the ESP32 connects to your router, any browser on the same network can access the dashboard with no internet required.
What app do I need to use?
None. Just open Chrome or Safari on your phone or laptop, enter the ESP32’s IP address, and the control page loads directly from the microcontroller.
Is it safe to connect to home appliances?
The relay module is rated for mains voltage, but we recommend testing with low‑voltage loads first. Adult supervision is essential when switching any appliance connected to a wall socket.
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