Smart Curtain Daylight Sensor Kit – Build an Automated Solar Tracking System with Arduino Uno and LDRs

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 a curtain that automatically follows the sun’s path across the sky, positioning a solar panel for maximum light capture. In this intermediate engineering project, you’ll combine four light-dependent resistors (LDRs) with an Arduino Uno to continuously sense ambient light levels and command two servo motors to tilt the curtain. An INA219 precision power monitor then measures the generated solar energy, and an OLED display compares the output against a fixed-position reference panel—giving you hard data on whether tracking really pays off.

What You'll Build

After assembling the circuit on a breadboard and uploading the code, you’ll have a fully autonomous curtain mechanism that rotates a small solar panel in real time to face the brightest light source. The OLED screen will show live voltage, current, and power readings from the INA219, with a toggle to switch between tracking mode and fixed mode for direct side-by-side comparison. This isn’t just a demo—it’s a repeatable experiment that you can use in science fairs, classroom presentations, or as a building block for a larger home automation system.

What You'll Learn

• Calibrating multiple LDR sensors to detect light direction with high precision.
• Programming Arduino to read analog sensor arrays and control servo motors via PWM.
• Using the INA219 module over I2C to monitor voltage, current, and power in real-time.
• Displaying live sensor data on an OLED screen and comparing energy efficiency between tracking and fixed configurations.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for CBSE Class 11 and 12 students working on physics investigatory projects involving renewable energy and automation. B.Tech ECE and EEE undergraduates will find it a perfect hands-on supplement to coursework on embedded systems and sensor integration. It’s also well‑suited for Smart India Hackathon teams, ATL Tinkering Lab participants, and engineering aspirants at IIT, NIT, VIT, and BITS who want a solderless, reusable platform to prototype solar tracking algorithms.

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.