Office Occupancy Tracker Kit with Arduino Uno + Relay
Office Occupancy Tracker Kit with Arduino: Automate Office Fans Based on Occupancy
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit transforms an ordinary office into a smart workspace: a PIR sensor detects when someone enters the room, instantly switching a fan on via a relay module. If the room stays vacant for 5 minutes, the Arduino cuts power automatically. You’ll create a real-world energy‑saving prototype — a genuine home-automation project that mirrors the occupancy systems found in modern green buildings.
What You'll Build
You'll assemble a fully functional prototype on a breadboard that senses human presence and controls a plug‑in fan (or any small appliance) through a 5V relay. The logic includes a timer that turns the device off after 5 minutes of no motion, exactly like commercial occupancy sensors used in offices and conference rooms. The finished circuit is ready to be housed in a case for daily use.
What You'll Learn
- Interfacing an HC‑SR501 PIR sensor with Arduino and interpreting its digital output
- Controlling high‑voltage appliances safely using a 5V relay module and a 1N4007 flyback diode
- Implementing time‑based automation logic with Arduino delays and simple state tracking
- Building a breadboard prototype and powering the entire system with a single 12V adapter
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-SR501 PIR | 1 |
| 5V Relay Module | 1 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 12V Adapter | 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 intermediate kit is ideal for CBSE Class 11-12 students diving into embedded systems, B.Tech ECE/EEE first‑years prototyping automation projects, and Smart India Hackathon teams needing a quick energy‑saving solution. It also fits ATL Tinkering Labs and after‑school STEM clubs were building a real‑world project in a single afternoon matters most.
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?
Our AI build companion, accessible via QR code, walks you through every connection step-by-step. You can also message us on WhatsApp for human assistance within a few hours.
Can I control a device other than a fan with this kit?
Yes, the relay module can switch any appliance up to 250V AC/30V DC, so you can control lights, pumps, or buzzers — just ensure the load stays within the relay’s rating.
Is the PIR sensor sensitive enough for a small office room?
The HC-SR501 PIR has a range of up to 7 meters and a wide detection cone, making it suitable for rooms up to 150 sq. ft. You can adjust sensitivity and delay via onboard potentiometers.
How do I power the Arduino and relay? Does it include a power supply?
The kit includes a 12V adapter that powers both the Arduino Uno (via its DC jack) and the 5V relay module through the breadboard, so no extra power supply is needed.
Office — PIR detects occupancy and switches fan relay on. Auto-off after 5 min of no motion.
What's in this kit
- Arduino Uno R3
- HC-SR501 PIR
- 5V Relay Module
- 1N4007 Diode x5
- 10kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- 12V Adapter
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