Sylvie Rana

Author Affiliation:
Academy of Technology, Aedconagar, Hooghly, West Bengal, India

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited


This paper explains the project which is a special kind of circular LED display. The Propeller Display is a linear array of light emitting diodes, rotating at a high angular velocity to generate a circular screen. With the help some mechanical assembly, LED count, hardware requirement, and hence overall cost is cut to very affordable price. Also, maintenance and repairing of the display is easy. All the synchronizing can be implemented through software. This project uses the principle of Persistence of Vision. The propeller display is mechanically scanned and displays the characters and symbols. It can be used anywhere and everywhere and the most amazing fact is its crystal clear display.

Propeller; LEDs; circular display; persistence of vision, microcontroller