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Assistive Gaming System for Leukodystrophy: Design and Implementation

This project aims to provide a solution for individuals with leukodystrophy to enjoy electronic games utilizing limited movements. The system comprises mechanical, electrical, and software designs to offer an accessible and engaging gaming experience.

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Assistive Gaming System for Leukodystrophy: Design and Implementation

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  1. Table of Contents • Project Overview (brief explanation of leukodystrophy) • Reviewed customer needs • Reviewed engineering specs • Detailed system lay out • Mechanical design • Electrical design • Software design • BOM • Cost Layout • Current main risk assessment • MSD II plan • Test Plan

  2. Project Overview – Leukodystrophy and Goal Leukodystrophy: • Genetic condition in which myelin sheaths in neurons degrade over time • Leads to difficulty moving and speaking Our goal: • Provide a customer who has leukodystrophy with a way to enjoy electronic games using limited movements

  3. Revised Customer Needs

  4. Engineering Specifications

  5. System Layout

  6. TOP LEVEL MECHANICAL DESIGN

  7. A Preview…

  8. Underside w/ Bottom panel removed

  9. Mech. Design – Purchase Component selection and analysis • Joystick Options – Pros/cons • Baseboard Option – Purchase Option • Baseboard Options – weight, cost, pros/cons • Baseboard Options – Stress Analysis

  10. Mounting Options

  11. ELECTRICAL TOP LEVEL LAYOUT

  12. Elec. Design - Right Circuit Board • USB port • Right side IR sensor (leg motion) connection • Right IR sensor tuning pot • Right Joystick (arm motion) connections • Right Joystick tuning pot • LED control circuitry and connections • Arduino connections

  13. Elec. Design - Right Circuit cont.

  14. Elec. Design - Left Circuit Board • Left IR sensor tuning pot • Right Joystick tuning pot • Power Control Circuitry • Mode Switch • Left side IR sensor (leg motion) connection

  15. Elec. Design - Left Circuit cont.

  16. Elec. Design - IR Range Finder • Variety of available ranges for RI sensors • Processing on board • Durable plugs

  17. Elec. Design – Component Selection and Analysis • 1600 mA/hr Battery will last 12 hours • Without knocking down voltage heat dissipation is near body temperature Heat dissipation

  18. SOFTWARE HIGH LEVEL LAYOUT

  19. Microcontroller Selection

  20. Final Choice: Arduino Micro • Familiar language semantics • Many examples/libraries available • USB interface on-chip • Free IDE • Cross-platform (Windows, Mac, Linux) • Sufficient I/O and processing capability • Small and lightweight • Relatively inexpensive

  21. ARDUINO SOFTWARE FLOW CHART

  22. GUI_App Model Diagram

  23. Samsung Galaxy Tab Interface Methodologies • Method 1 (preferred) • Method 2

  24. BOM

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