Build an Energy-Saving Auto Light with Motion-Activated Alarm Using Arduino Uno

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

Save electricity and add smart alerting by building a motion-activated light and buzzer system. This Auto Light Energy Saver Pro Kit teaches you to wire a PIR sensor that triggers LEDs and a buzzer only when movement is detected—perfect for understanding automation in Indian homes and classrooms.

What You'll Build

You’ll create a breadboard circuit with an Arduino Uno that reads an HC-SR501 PIR sensor. When motion is detected, three red LEDs flash and an active buzzer sounds an alarm. With no motion for a set time, everything switches off—demonstrating real-world energy-saving automation.

What You'll Learn

• Interface a PIR motion sensor with Arduino and calibrate its detection range
• Control multiple LEDs and a buzzer through digital output pins
• Write Arduino code to read sensor data and trigger conditional actions
• Understand the principle of sensing-based automation for energy efficiency

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This beginner-level kit is designed for school students (CBSE Class 11-12) starting with Arduino, young makers in ATL Tinkering Labs, and B.Tech ECE/EEE freshers exploring sensor projects. If you’re preparing for a school science exhibition or want to build a simple energy-saving demo for Smart India Hackathon, this kit gives you a single-box start without hunting for parts across multiple sellers.

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.