Auto Light Energy Saver Pro Kit: Build a Motion-Activated Corridor Light Dimmer with 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.

Imagine stepping into a dark corridor and the lights gently rise to a soft glow as you walk, then dim back to minimal brightness once you pass. This kit lets you build that exact smart energy saver—combining a PIR motion detector with dual LDR ambient sensors and a MOSFET-driven LED strip. The result is a practical, power-conscious lighting system that schools and hostels across India can use to slash electricity bills without sacrificing safety.

What You'll Build

You will assemble a fully functional prototype that controls brightness of a corridor LED strip based on real-time motion and light levels. The circuit places one LDR near the entrance and another deeper inside, so the Arduino only activates the dimming sequence when both sensors confirm darkness—eliminating false triggers from headlights or window shadows. The MOSFET modulates power smoothly from a soft nightlight to full brightness, exactly when someone needs it.

What You'll Learn

• Calibrating LDR voltage dividers to set reliable darkness thresholds in Indian ambient conditions
• Integrating an HC-SR501 PIR sensor with Arduino to detect movement within a corridor’s range
• Driving a 12V LED strip via an IRF540N MOSFET using Arduino PWM for flicker-free dimming
• Writing conditional logic that merges two light sensor readings and a motion trigger into a single energy-saving algorithm

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit fits CBSE Class 11 and 12 students building physics sensor projects, first‑year B.Tech ECE/EEE learners prototyping automation concepts, and ATL Tinkering Lab trainers mentoring energy‑saving innovations. It’s also a ready‑made module for Smart India Hackathon teams tackling smart corridor or hostel lighting challenges, and can be expanded into a full IIT/NIT mini project on ambient intelligence.

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.