Voice-Activated Lamp Switch Kit with ESP32 + Relay
Voice-Activated Lamp Switch Kit — Offline Control with ESP32-S3 WakeNet
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Speak a custom keyword and your lamp obeys — no cloud, no Wi-Fi, just embedded intelligence. This kit lets you build a fully offline voice-activated switch using the ESP32-S3’s WakeNet engine. You’ll wire the hardware, train a wake word, and have a real lamp responding to your command in an afternoon.
What You'll Build
A voice-operated lamp controller that listens for a phrase you choose — like “Light On” or “Study Mode” — and toggles a connected lamp via relay. The entire inferencing runs on the ESP32-S3, so your command stays private and works instantly even without internet access. You’ll end up with a working smart plug that you can slot into any room or school project display.
What You'll Learn
- Configure and deploy the WakeNet speech recognition engine on ESP32-S3
- Interface an I2S MEMS microphone (INMP441) for high-fidelity audio capture
- Control a high-voltage appliance using a relay module with flyback diode protection
- Debug embedded AI models and tune keyword sensitivity for reliable triggers
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | 1 |
| INMP441 I2S Mic | 1 |
| 5V Relay Module | 1 |
| 5mm White LED | 3 |
| 1N4007 Diode | 3 |
| 10kΩ Resistors | 5 |
| 220Ω Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 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
Designed for CBSE Class 11–12 students integrating AI into their physics or computer science projects, first-year B.Tech ECE/EEE students eager to explore embedded machine learning, and ATL Tinkering Lab facilitators running hands-on IoT workshops. If you want a private, internet-free voice control system that actually switches a mains lamp, this kit delivers a concrete outcome fast.
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 launch the AI companion that guides you wire by wire, or send a message on WhatsApp — we'll help you debug until your lamp responds.
Can I use this kit without any internet connection?
Yes, the ESP32-S3 runs WakeNet entirely on-device. After you flash the firmware, voice recognition and relay switching happen locally — no WiFi or cloud needed.
How do I train a custom wake word?
The AI companion walks you through recording audio samples and running a training script on your PC. The resulting model stays on the ESP32-S3; no data ever leaves your hardware.
What type of lamp or load can the relay switch?
The included 5V relay module can switch AC loads up to 250V, 10A, suitable for table lamps, LED strips, fans, or small home appliances. The 1N4007 diode protects the relay coil during operation.
Say a custom keyword to toggle lamp relay. ESP32-S3 WakeNet runs on-device — works fully offline.
What's in this kit
- ESP32-S3 Dev Board
- INMP441 I2S Mic
- 5V Relay Module
- 5mm White LED x3
- 1N4007 Diode x3
- 10kΩ Resistors x5
- 220Ω Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- Micro USB Cable
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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