Automatic Night Light Kit — First Light-Sensing Project with Arduino Uno and LDR

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

Have you ever wanted a lamp that turns itself on as soon as the room gets dark? With this kit, you’ll build exactly that — a smart night light that uses a Light Dependent Resistor (LDR) to sense darkness and automatically switches a white LED on. It’s the most magical first step into the world of sensors and microcontrollers, designed so even a complete beginner can have a working circuit in under two hours.

What You'll Build

You’ll assemble a breadboard circuit where three bright white LEDs glow softly in the dark and turn off when the room is bright again. Test it instantly by covering the LDR with your finger — the light responds in real time. It’s a fully functional automatic night lamp you can place on your desk, attach to a project box, or even take to a school science exhibition.

What You'll Learn

• How an LDR changes resistance with ambient light and how to read those changes using Arduino’s analog input pins
• Writing conditional logic in Arduino C/C++ — using if-else statements to control an LED based on sensor readings
• Building circuits on a breadboard without soldering: connecting resistors, LEDs, and sensors correctly
• Debugging a real hardware project — adjusting thresholds, checking polarities, and refining code until the light behaves exactly right

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is purpose-built for young makers in ATL Tinkering Labs, CBSE Class 6–10 science projects, and curious minds ages 5–15 who want to move beyond theory. It’s also ideal for B.Tech ECE or EEE students needing a quick, hands-on sensor lab, and for parents guiding a first electronics experience at home. If you’re taking part in a STEM challenge or just want to see light-sensing in action, everything you need is here.

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.