Industrial Relay Switch Controller Kit
Industrial Relay Switch Controller Kit – Build a Face-Recognition-Activated Access System
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform a standard solenoid lock into a biometric gatekeeper that responds only to recognized faces. You’ll wire an Arduino UNO Q as the relay brain, capture frames with an OV2640 camera, and let a Linux‑based OpenCV pipeline decide who gets through—logging every access attempt to a time‑stamped CSV file. It’s a direct window into how smart factories and R&D labs secure their entry points today.
What You'll Build
By the end of this project, you’ll have a fully enclosed access controller. A 1.8‑inch TFT shows real‑time system status; the DS3231 RTC stamps each unlock; and the solenoid clicks open only when your face‑recognition model sends the right serial command. You’ll hold a working industrial relay switch that can be mounted on a real door or gate.
What You'll Learn
- Wiring and driving a 5 V solenoid lock through a relay, with flyback protection using 1N4007 diodes and smoothing capacitors.
- Establishing serial communication between Arduino and a host system (PC or Linux MPU) to receive unlock commands and send status updates.
- Integrating a DS3231 real‑time clock to generate epoch‑stamped access logs, and exporting them as CSV to an eMMC storage drive on the host.
- Interfacing the OV2640 camera module with OpenCV on a Linux board, training or loading a face recognizer, and triggering the relay on successful match.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino UNO Q | 1 |
| OV2640 Camera Module | 1 |
| 5V Solenoid Lock | 1 |
| 5V Relay Module | 1 |
| DS3231 RTC | 1 |
| 1.8in TFT ST7735 | 1 |
| LM2596 Buck Converter | 1 |
| 1N4007 Diode | 5 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 3A PSU | 1 |
| USB-C Hub | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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
B.Tech ECE and EEE students who need a standout final‑year project on biometric access control. Smart India Hackathon teams prototyping secure entry for government buildings. Diploma trainees in industrial automation, and ATL Tinkering Labs preparing for advanced embedded competitions at IIT, NIT, VIT, or BITS Pilani.
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 start a conversation with the AI companion. It knows every wire, code snippet, and common pitfall. Human help is standing by on WhatsApp if you need deeper debugging.
Does the kit include a Raspberry Pi or STM32?
No. The kit provides an Arduino UNO Q for relay control and an OV2640 camera module. You’ll need to connect these to a Linux MPU (like a Raspberry Pi 4) to run the OpenCV face‑recognition pipeline. The AI companion shows you exactly how to set up that connection.
Can I build a working lock without a Linux board?
Absolutely. You can assemble the relay controller, test it with manual serial commands from the Arduino IDE, and verify the RTC logging and TFT display. The full face‑recognition trigger, however, requires a host processor running OpenCV.
Is soldering experience required?
You’ll be soldering diodes, capacitors, and headers onto the prototype boards. A soldering iron, solder wire, and a detailed guide are included—perfect for building or refining your soldering skills.
Industrial Automation — OpenCV face recognition runs on Linux MPU. Match result triggers STM32 relay lock and logs to CSV on eMMC.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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