LightMap: Persistence of Vision ArtBrian Goldfain, Daniel Lin, Kenny Huang, Regina Chan, Priya Narasimhan

Motivation Architecture

Results

Original objective was to create a toaster with the ability to toast dynamic images onto a slice of toast.

Ran into difficulties powering coils to effectively toast images.

Rebooted project using our existing code base and applied image conversion and display software to POV led bar.

The end product can be used as creative and dynamic advertising in store displays or windows.

http://www.ece.cmu.edu/~ece549/spring10/team3/index.html

Hardware Arduino Mega Led BarSoftware In-house image conversion software C + Wiring (Arduino library)Existing infrastructure Serial Communication Interface

Objective Image reproduction through unconventional mediums

Allow images to be dynamically chosen by operator of device.

Accept widely used image formats for conversion.

Development EnvironmentInitial set of experiments

Prototype of hardware and software completed. Image conversion software works with jpg and bmp files.

Initial usability studies Image transfer times are quick (~3 sec) Testing among number of test subjects show that majority are able to perceive

image displayed on LEDs

Design Problems Reboot

PCImage Conversion

Software

LightMapArduino

Image Reproduction

ProgramLED Array

USB