Staircase Night Light Automator Kit with Arduino Uno + 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.

Tired of climbing dark stairs or finding light switches in unlit corridors? This kit turns an ordinary LED strip into a responsive night light that brightens only when motion is detected under low ambient light. It’s the perfect way to add safety and convenience to any home while diving into real-world sensor integration and MOSFET switching.

What You'll Build

You'll assemble a complete automatic lighting system that reads ambient darkness with two LDRs and triggers a PIR motion sensor. When it’s dark and someone walks by, the Arduino increases the LED strip brightness smoothly. Once the area is vacant, the light fades out, all without any manual switching. The circuit works on a 12V LED strip and uses a logic-level MOSFET to handle the current safely.

What You'll Learn

• How to interface LDRs with Arduino analog inputs and calibrate light thresholds
• Configuring the HC-SR501 PIR sensor to filter false triggers and set time delays
• Using an IRF540N MOSFET as a PWM dimmer for 12V LED strips
• Writing Arduino code that coordinates sensors, timing, and smooth LED fading

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for intermediate-level makers aged 15–18, it aligns perfectly with CBSE Class 11–12 electronics projects and first-year B.Tech ECE/EEE lab work. It’s also a great fit for ATL Tinkering Labs and Smart India Hackathon participants who need a pre-validated home automation module to prototype quickly.

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.