Build a Night-Activated Motion Security Light with the Arduino Uno Home Security Kit

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 walking into a dark corridor and having bright white LEDs switch on automatically, then turn off exactly 30 seconds later — and only when the room is truly dark. This kit lets you build that exact behaviour, using a PIR motion sensor paired with LDRs to create a home security floodlight that never wastes power during the day. It’s a complete introduction to smart home automation, disguised as a fun, hands‑on project.

What You'll Build

You’ll assemble a breadboard circuit with an Arduino Uno R3, HC-SR501 PIR sensor, two LDR light sensors, and five 5mm white LEDs. The brains of the circuit read ambient light through the LDRs and only arm the motion sensor in darkness. When motion is detected, the LEDs ignite for a 30‑second countdown, then switch off automatically. The result is a compact, battery‑operated sentinel you can place near a doorway, window, or staircase.

What You'll Learn

• How PIR sensors detect infrared heat changes from moving bodies and output a digital signal.
• Using LDRs (light‑dependent resistors) to sense ambient light and trigger night‑only logic.
• Programming conditional loops and timing delays in the Arduino IDE, including serial monitoring to tune sensitivity.
• Wiring sensors, resistors, and LEDs on a solderless breadboard, building a complete embedded system without any soldering.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This beginner kit fits perfectly into CBSE Class 6–12 electronics curricula, ATL Tinkering Labs, and STEM activity days. It’s designed for students aged 10 and above who want a safe, solder‑free first project in home automation. Parents and educators looking for a structured build that teaches real‑world coding and sensor logic will find the AI companion invaluable, turning frustrated troubleshooting into an engaging learning experience.

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.