1. LightMap – Team 3 Daniel Lin Brian Goldfain Regina Chan Kenny Huang

2. Team Members Brian GoldfainDaniel LinKenny HuangRegina Chan http://www.ece.cmu.edu/~ece549/spring10/team3/index. html

3. Concept Infeasibility of our original concept prompted a reboot with five weeks left We used our existing code base in a creative manner to produce LightMap LightMap transforms a given image to a LED output that can be viewed with the effects of persistence of vision

4. Goals Requirements –Image shall be transformed to a max of 50x50 resolution and outputted to the bar of LEDs with correct timing for persistence of vision –User should not be dizzy after viewing image

5. Architecture

6. Components

7. Experimental Process Unit tests for PC and Arduino modules –Load image –Convert image –Display image on LEDs Integration tests –Transfer converted image to Arduino –Verify image seen on LEDs matches converted image displayed on PC

8. Test Setup/Metrics Setup: –All tests conducted on same Laptop –PC connected to Arduino via USB at 9600 baud if necessary –Arduino Powered from USB Metrics –Image Conversion time –Image Transfer time

9. Experimental Results No delay visible for user to display image on Arduino after image has been transferred. Average conversion time: 48 ms Average transfer time: 2.4 sec

10. More Test Results/Software

11. PC Software

12. Open Issues Future improvements involve the ability to stack LED bar units together to form better resolution Form packaging would also be sleeker General extensibility and better user interface in programs

13. Conclusions Things learned –Diverse set of skills is critical Could have caught issues earlier had we someone with extensive circuits knowledge Accomplishments –Designed and made product despite being in a time crunch