Team Gray Wolf Propeller Display

1. Team Gray WolfPropeller Display Team Brent Piriyakarnjanakul David Lewis Tom Fuchs • Advisor • Dr. Inan, Dr. Osterberg • Industry Representative • Dr. Sig Lillevik • Intel Corp.

2. Thank You! • Thanks and Appreciation • Dr. Aziz Inan, Dr. Sig Lillevik, Dr. Peter Osterberg, Dr. Wayne Lu, Peter Rachor, Craig Henry and Allen Hansen University of Portland School of Engineering

3. Agenda • Introduction Tom • Background Tom • Methods Tom/David • Results Tom/David • Conclusions David • Demonstration David University of Portland School of Engineering

4. Introduction • Why a Rotating LED Display? • Unique image display • What you will learn • Basic principles of the device • Device architecture and design • Final results • What we learned University of Portland School of Engineering

5. Background • Persistence of Vision • Our Personal Goals • Incorporate: Semiconductor Design, PIC Microcontroller, Digital Sensor (2000 RPM) p U E S E c / University of Portland School of Engineering

6. Background (Cont) Logic Unit PIC Lights MOSIS IR Sensor University of Portland School of Engineering

7. Background (Cont) • Sensor • Infrared Phototransistor • Infrared Emitter University of Portland School of Engineering

8. Background (Cont) • Logic Unit • MOSIS/CPLD • Calculates the time of 1/120th section of one rotation • PIC Microcontroller • Controls timing of light emitting diodes (LEDs) CPLD PIC University of Portland School of Engineering

9. Methods • Standard Engineering Procedure • Proposal • Functional Specification • Project scope and functionality • Design • High and low level architectures • Complete detailed design • Implementation and Testing University of Portland School of Engineering

10. Methods • Communication • Weekly meetings with group and advisor • Organizational technologies • Basecamp, Google Calendar, Gmail • Effective Allocation of Resources • Division of tasks University of Portland School of Engineering

11. Methods University of Portland School of Engineering

12. Results Logic Unit PIC Lights MOSIS IR Sensor University of Portland School of Engineering

13. Results • MOSIS Educational Program • Provided free masking, fabrication and packaging of device design • Structured chip design experience • Real design necessities • Hard deadlines for complete design • MOSIS Architecture • Divides rotation time into 120 sections University of Portland School of Engineering

14. Results • MOSIS Architecture • Challenge • Unknown rotation time • Solution • Primary counter counts to 120 • Reset • Secondary counter increments each time Primary resets • Secondary is the number of clock ticks in one section (1/120th) of a rotation 100 /5 = ? 1 10 20 1 5 1 5 1 5 P P S P S S University of Portland School of Engineering

15. Results 0 0 1 T1/120th 1 120 1 120 P P P S S S University of Portland School of Engineering

16. MOSIS Chip Block Diagram University of Portland School of Engineering

17. Results • MOSIS Device Architecture University of Portland School of Engineering

18. Results University of Portland School of Engineering

19. Results • PIC Microcontroller • Uses input time from MOSIS • Illuminates LEDs in every section University of Portland School of Engineering

20. Results University of Portland School of Engineering

21. System Circuitry CPLD CPLD VR VR LEDs 555 Timer LEDs 555 Timer PIC PIC IR Sensor IR Sensor University of Portland School of Engineering

22. Power Distribution System University of Portland School of Engineering

23. Board Layout Voltage Regulator CPLD SMD LEDS IR Sensor 555 Timer PIC University of Portland School of Engineering

24. Conclusions • Device Near Full Functionality • Power fluctuations • Integration of electronics • Technical and Personal Knowledge • Problem solving • Multiple perspectives and hands • Standard Engineering Procedure University of Portland School of Engineering

25. Thank You. Are there any questions? http://teaching.up.edu/srdesign/AY11/GrayWolf/index.htm University of Portland School of Engineering