Solar Tracker Kit

Overview

This DIY project builds a sun-tracking solar panel. Two LDR light sensors compare brightness on either side, and an Arduino Nano turns a servo so the panel always faces the brightest light.

How It Works

1. Two LDR modules measure the light falling on the left and right sides.
2. The Arduino Nano compares the two readings.
3. The SG90 servo rotates the solar panel toward the brighter side until both readings are balanced.

Complete Parts List

You Will Also Need

A USB-A to USB-C cable to connect the Arduino Nano C-Type to your computer and upload code — not included in this kit.

Applications

• Renewable energy demos - show why tracking improves solar output
• Science projects - a great school or college exhibition model
• Sensor + servo learning - combine analog input with motor control

Full Build Guide

Step-by-step instructions and code for this exact project are on Project Hub.

FAQ

Do I need coding experience? No prior experience is required - this kit is built around one specific project, and the full code is freely available. See the build guide above.

What tools do I need beyond what's included? A computer with the free Arduino IDE (or ESP8266 board support, where applicable) installed to upload the code. You'll also need a USB-A to USB-C cable to connect the board — not included.

Can I reuse the parts afterward? Yes - every component in this kit is a standard, reusable part you can use in future projects, not a single-use kit.