Smart Fan (Temperature Controlled DC Fan) KIT

The Smart Fan (Temperature Controlled DC Fan) is an educational electronics project kit that automatically turns a DC fan ON or OFF based on the surrounding temperature. Using a temperature sensor and simple control circuit, it demonstrates the basics of automatic temperature monitoring and cooling systems. It is ideal for school projects, STEM learning, and DIY electronics experiments.

Advantages

• Automatic Temperature Control – Fan switches ON when the temperature rises above a preset level.
• Energy Efficient – Operates only when cooling is needed, reducing power consumption.
• Easy to Assemble – Beginner-friendly electronics project.
• Hands-on Learning – Demonstrates the working of temperature sensors and control circuits.
• STEM Education – Ideal for science exhibitions and practical electronics learning.
• Portable Design – Compact and lightweight.

Components

• LM35 Temp Sensor
• Transistor BD139
•  5V DC Toy Fan
• 9V Battery With connector