Shared Office Occupancy Light Kit with Arduino Uno – Instantly See How Many Desks Are Occupied

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 glancing at a compact LED matrix on your wall that quietly tells you exactly how many desks in your shared office, coworking nook, or school lab are currently in use – no login screens, no noisy check-in systems. This kit lets you build that real-time occupancy tracker. Using four PIR sensors placed discreetly at each desk, an Arduino Uno continually counts active stations and lights up the corresponding number on an 8×8 LED display. Designed for Indian startups, college project hubs, and even home workstations where multiple family members share a worktable, it brings a calm, glanceable layer of awareness to shared environments.

What You'll Build

You’ll assemble a completely solder-free, multi-desk presence indicator on a breadboard. Each HC-SR501 sensor watches its own desk area; whenever someone sits down and moves, the sensor sends a signal to the Arduino. The microcontroller keeps a running count and updates the MAX7219 matrix in real time, showing a digit from 0 (all empty) to 4 (all desks full). The result is a small, self-contained module you can mount anywhere — perfect for libraries, ATL Tinkering Labs, or that corner of a B.Tech ECE lab where equipment sharing gets chaotic.

What You'll Learn

• Interfacing multiple PIR sensors with Arduino Uno and managing conflicting signals
• Multiplexing and driving an 8×8 LED matrix via the MAX7219 driver
• Debouncing and timing logic to ensure occupancy counts stay accurate even when people move briefly
• Programming real-time monitoring loops and simple display mappings in Arduino C/C++

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

CBSE Class 11–12 students exploring embedded electronics will find it a concrete, curriculum-connected project. B.Tech ECE and EEE undergraduates can use it as a ready-made mini‑project for lab course requirements or Smart India Hackathon rapid prototyping. It’s equally at home in ATL Tinkering Labs, IIT/NIT/VIT makerspaces, and co‑working spaces where a low‑cost, visual occupancy indicator helps teams share desks mindfully.

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.