This project details a simple, low-cost 'persistance of vision'
toy. A simple microcontroller blinks 8 LEDs on and off so that when
waved through the air, an image or message appears to float in front
of the viewer.
MiniPOV comprises a printed circuit board and
This image was taken by waving the MiniPOV in
front of the camera during a long-exposure picture
Originally this project was designed in collaboration with Marcos
Ojeda as an easy-to-build demonstration of how microcontrollers
work, for new freshman coming into MIT. The design priorities were:
ease of construction, cost, and simplicitiy of design. The necessary
parts, including batteries and a preprogrammed microcontroller,
were assembled into a kit. 100 kits were made at a cost of $3.50
per and distributed. Assembly time for students with no experience
soldering seems to be approximately 1 hour.