1. Final Presentation EE 396/496 Joint Project May 9, 2006

2. Group Members Team Captain Krystina Tabangcura : Team Captain Electro-Physics Track | Previous Projects: [ 296 : Course Scheduler ] Software Programmer / uC Receiving Paul Ramirez : Software Programmer / uC Receiving Computers | Previous Projects: [ 296 : M & M Mighty Mouse ][ 396 : TBD ] PCB Designer Melanie Locquiao : PCB Designer Systems | Previous Projects : [ 296 : All Access Unit ] G. Designer / uC Transmiting Allen Pascual : G. Designer / uC Transmiting Systems | Previous Projects: [ 296 : All Access Unit ]

3. Assistive Technology Focus of Archimedes Hawaii Project: “Universal Design” Any person with any disability being able to use any IT device (AT) Archimedes Hawaii & Examples of Assistive Technology

4. Overview Project Objective: “Design and develop a multi-channel, wireless communication system for the purpose of modifying toys for children with disabilities” Purpose: -To afford children with disabilities the same opportunities -To provide a cheaper alternative to current options -Allow anyone to be able to modify toys

5. Representation of Prototype (Push Button Configuration) Final Result Multi-Switch Toy Each switch on toy-end operated by a different switch on user-end Overview

6. System Diagram Switch ModuleToy Module

7. XBee OEM RF Module Testing Communication Switch End Toy End

8. Picaxe Microcontroller Testing Communication Receiving Serial Input (Xbee -> uC) DC output (uC -> Output Transducer) Transmitting DC Input (Input Transducer -> uC) Serial Output (uC -> Xbee)

9. Switch Module

10. Switch Module Schematic

11. Toy Module

12. Toy Module Schematic

13. Final PCB Design Toy Module PCB Switch Module PCB

14. Resolved Problems PROBLEMS: Interaction between uController and RF Module Programming uController Ordering Parts online Finding right toy PCB express what? Holes on PCB were too small Not sticking to Gantt chart

15. Outstanding Problems & Suggestions PROBLEMS: Casing not to standards… (ghetto) Krystina… enough said PCB wasn’t PERFECT!!! Allen mixed up 2 cnxns for DL cable … need to fix if planning to mass produce Left Archimedes in a hurry last night so there’s a big mess there for us to clean Depletion region of (krystina’s) wallet increased exponentially from t = day 1 to t = now (Donations?//) Paul, Allen, Mel… I.O.U.’s

16. Future Improvements Save money by etching PCB’s in house Save money by buying all necessary supplies in the fewest amount of orders to reduce shipping costs Complete final designs before conducting tests –Complete planning leads to faster product development and testing Create smaller modules to fit in ball switch to be used by Archimedes Hawaii Add extra features: –On and Off switch –Battery status (Full to empty) –Status Indicators Power Transmitting/Receiving Signal Strength Range Switch –“Switch Type” Mode User manual

17. Demonstration Please direct all attention to bright yellow object placed on the table. WARNING!!! Please be aware of your surroundings… Enjoy!

18. QUESTIONs? Visit the Wireless Xbee website at : http://www2.hawaii.edu/~allencha