Abstract: The objective is to create a visually striking display that utilizes the phenomenon of persistence of vision to generate the illusion of floating images or messages in mid-air with easy implementation technique. This project aims to create a captivating visual display that utilizes the phenomenon of persistence of vision to create the illusion of static or moving images. By rapidly flashing or changing the displayed content in synchronization with the viewer's perception, the POV display creates a continuous image that appears to defy reality.

The project leverages an ESP32 microcontroller, which serves as the central control unit for the display. Individual LEDs are used as the light source, arranged in a linear configuration, which is mounted on the blades of the fan. The LEDs are selectively activated in a precise sequence, taking advantage of the persistence of vision phenomenon, to create the perception of a static or moving image. The software implementation includes programming the ESP32 to control the LED activation patterns, timing, and synchronization with the fan's rotation. The display content, such as text, patterns, is designed to be mapped to the LED activation sequence, considering the speed of the rotating fan blades. The objective is to create a visually striking display that utilizes the phenomenon of persistence of vision to generate the illusion of floating images or messages in mid-air with easy implementation technique. This will enable small-scale businesses to advertise their business or products at a very subsidized cost.

Keywords: ESP 32, LED’s, 9v battery, 220ohms Resistor, Firebase, Mobile Application, Arduino IDE.

| DOI: 10.17148/IARJSET.2023.10736