In this video, I built a smart solar tracker using Arduino, LDR sensors, and an SG90 servo motor. This system automatically detects sunlight and moves the solar panel to follow the sun for maximum efficiency.
🔧 Components Used:
Arduino Uno
LDR (Light Dependent Resistor) ×2
10k Resistors
SG90 Servo Motor
Solar Panel (5V)
Jumper Wires
⚙️ How it Works:
Two LDR sensors detect light intensity. The Arduino compares both values and rotates the servo motor toward the brighter side, making the solar panel follow the sun automatically.
🚀 Benefits:
Increases solar efficiency
Simple and low-cost project
Great for beginners
📌 Note:
This is a basic model. For better performance, you can add battery backup and dual-axis tracking.
💡 Future Upgrades:
👉 Add LCD display
👉 Add battery charging system
👉 Dual-axis movement
👉 IoT monitoring
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