Object Detection Relay Trigger
Build an AI Object Detection Relay Trigger with Arduino
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Bring sight to your automation projects. This kit lets you train or use a pre-trained object detection model on your laptop, then send a command to an Arduino—triggering a relay when a specific object appears in the camera frame. Imagine a light that only turns on when a car approaches, a door that unlocks for a known face, or a production line sorter that identifies defective items. No more blind sensors; your circuits now see and decide.
What You'll Build
You’ll assemble a complete object‑aware switch: the OV2640 camera captures live video, your laptop runs a lightweight AI model that spots the class you trained it for, and the Arduino UNO listens for a serial trigger. When detection confidence crosses a threshold, the relay closes—controlling a lamp, fan, motor, or any 5–230 V appliance. The 0.96‑inch OLED displays live class names and relay status, giving you visual feedback on every detection without needing a separate monitor.
What You'll Learn
- Capture and stream images from an OV2640 camera using Arduino libraries
- Run a TensorFlow Lite or OpenCV‑based object detection model on a laptop and communicate results via USB serial
- Parse serial data on Arduino to trigger the 5 V relay based on a configurable class label
- Design a clean, soldered circuit on a prototyping board that integrates the relay with protection diodes and decoupling capacitors
Kit Contents
| Component | Quantity |
|---|---|
| Arduino UNO Q | 1 |
| OV2640 Camera Module | 1 |
| 5V Relay Module | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 3 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 5 |
| PCB Prototype Board | 1 |
| USB-C Hub | 1 |
| 5V 3A PSU | 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
This kit suits B.Tech ECE/EEE students working on Smart India Hackathon prototypes, final‑year AI+IoT projects, or research demos. It’s also ideal for CBSE Class 12 students exploring computer science projects that bridge software and hardware. Makers in ATL Tinkering Labs and members of college robotics clubs (IIT, NIT, VIT, BITS) will find the relay‑trigger use case immediately applicable to real‑world automation challenges.
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?
Just open the AI companion from your phone or laptop. It walks you through wiring, code, and troubleshooting. You can also message us on WhatsApp for a direct reply within hours.
Do I need a dedicated GPU to run the object detection model?
No. The pre-trained lightweight model runs smoothly on a standard laptop CPU via our supplied Python script. You only need a USB port to connect the Arduino.
Can I train the model to detect my own custom objects?
Absolutely. We provide templates to retrain the model with a few dozen labelled images. Replace the model file on your laptop and update the class list—no Arduino code change needed.
What voltage and current can the relay handle?
The 5 V relay module can switch loads up to 230 V AC / 30 V DC at 10 A. Always use the included 1N4007
Arduino App Lab runs a pre-trained object detection model on the MPU. Detected class name triggers STM32 GPIO relay.
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