Propeller Clock using Arduino Persistence of Vision

Project Overview

A clock display created using rotating LEDs and the persistence of vision phenomenon, controlled by Arduino

This project leverages the persistence of vision (POV) effect to create a unique and eye-catching clock display. By rapidly rotating a linear array of LEDs controlled by an Arduino, the system creates the illusion of a full circular clock face in mid-air. The propeller clock not only serves as a functional timepiece but also as an impressive demonstration of visual perception and Arduino programming capabilities.

Key Features

• Time Display using Persistence of Vision
• Arduino-controlled LED Array
• Customizable Display Patterns
• Rotating Mechanism
• Low Power Consumption

Technologies Used

Implementation Details

The system consists of a rotating arm with a carefully arranged array of LEDs controlled by an Arduino Nano. As the arm spins at high speed, the Arduino precisely times the LED flashes to create stable images in the air. The project incorporates a hall effect sensor for rotational synchronization and uses efficient code to manage timing and display updates. Power is supplied through a slip ring to allow continuous rotation while maintaining electrical connections.

Use Cases

• Unique timekeeping display for home or office
• Educational tool for teaching electronics and visual perception
• Eye-catching display for maker fairs and technology exhibitions
• Customizable advertising or information display

Benefits

• Creates a visually striking and conversation-starting timepiece
• Demonstrates advanced concepts in electronics and perception
• Highly customizable display patterns and information
• Relatively low-cost project with high impact
• Encourages learning about Arduino programming and LED control