Build Your Own Office Occupancy Tracker with Arduino Uno & PIR Sensor

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Stop wondering who just walked into your room or cabin. This kit lets you build a compact motion‑triggered alert system on a single breadboard. Place it on a desk near the door, and as soon as the PIR sensor detects movement, the bright red LEDs flash and a loud buzzer sounds — no soldering required. Ideal for small shops, private offices, or even keeping an eye on a baby’s crib while you work nearby.

What You'll Build

You’ll assemble a fully functional occupancy monitor that reacts the moment someone enters its field of view. The HC-SR501 PIR sensor scans for infrared heat signatures; when triggered, it sends a signal to the Arduino Uno, which lights up three red LEDs and activates an active buzzer. The alarm stays on as long as motion continues, then resets automatically — just like a real security antenna.

What You'll Learn

• Wire an HC-SR501 PIR sensor to read motion and output a digital signal
• Program an Arduino Uno to control multiple LEDs and a buzzer simultaneously
• Use resistors and a breadboard to build a reliable, solder‑free circuit
• Adjust sensor sensitivity and delay timing for different room sizes or use cases

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for young makers aged 10‑15 who are taking their first steps into Arduino and sensor‑based automation. It’s equally suited for ATL Tinkering Lab sessions where students build real‑world alert systems, or for CBSE Class 11‑12 students preparing a simple yet impressive science fair project. No prior electronics experience is expected — everything clicks together on the breadboard with clear, jargon‑free instructions.

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.