Motion-Activated Night Light Kit 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.

Imagine a hallway that lights itself only when someone walks through and only after dark. This kit lets you build that exact system on a breadboard, using a PIR motion sensor that triggers a bright LED for 30 seconds and an LDR that ensures it never wastes power during daylight. It’s a project that mimics real-world security-sensor behavior while teaching you how Arduino reads and responds to its environment.

What You'll Build

You'll assemble a motion-activated night light circuit that combines a PIR sensor, two light-dependent resistors, and a cluster of white LEDs. The Arduino Uno watches both sensors: when the LDR confirms the room is dark and the PIR detects movement, the LEDs glow for half a minute. The board stays silent when the lights are already on, solving the common problem of false mid-day triggers.

What You'll Learn

• Wiring and reading a PIR motion sensor with Arduino’s digital input
• Using an LDR + 10kΩ voltage divider to detect ambient light levels
• Conditional logic in code that combines two sensor inputs before taking action
• Timing control: keeping an LED lit for exactly 30 seconds after motion ceases

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This beginner kit fits perfectly into CBSE Classes 11–12 physics or computer science practicals, B.Tech first-year sensor-lab sessions, and ATL Tinkering Lab challenges. It’s also a ready-made demonstrator for Smart India Hackathon prototype tables or science exhibitions at IIT, NIT, VIT or BITS campus events. Any student who wants to move from blinking an LED to building a real-world security-inspired circuit will find it accessible and exciting.

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.