Smart Fan Using a Smartphone using Raspberry Pi 4 B

Aim

The goal of this activity is to address this problem and demonstrate a solution. The solution is a Smart Fan! .

Materials Required

  1. Raspberry Pi 4 B -1    
  2. L293D Motor Driver-1
  3. Ultrasonic Distance Sensor-1 
  4.  DC Motors – 1
  5. Breadboard – 1   
  6. Lithium Batteries -2 
  7. Propeller Blade – 1
  8. Several Jumper Wires   
  9. Type-C USB Cable-1    

Wiring Diagram

Desired Outcome

The Smart Fan system activates when it detects a person in front of it through an ultrasonic sensor connected to an Arduino and motor driver. It deactivates when no person is detected in its path.