ECE 477 Final Presentation Group 9  Spring 2005 Nathan Smith, Omar Shaikh, Ryan Koors, Jeff Huston

Outline Project overview Design challenges faced ECE 362 knowledge used Project demo

General Informative Medical Prosthetic Project Overview: General Informative Medical Prosthetic Gait sensory feedback system for existing lower limb prosthetic devices. Modes: “Direct Map” “Training” “Upload”

Challenges Faced: PCB size and packaging Learning tools: OrCad, CodeWarrior Finding components: “learning” Digikey Keeping LCDs from catching fire Communication of interfaces Learning how to solder

PCB Layout Board designed to fit into 5”x7” container

Success Criteria Demonstrations Project-specific success criteria #1

Success Criteria Demonstrations Project-specific success criteria #3

Success Criteria Demonstrations Project-specific success criteria #4

Project Summary: Lessons Learned Look for parts early—this really helped us Layout should be completed & bread-boarded almost immediately Understand software environment almost immediately Multiple revisions on PCB Come to ECE477 with project ideas Choosing members by mutual interest Brainstorming ahead of time Equal parts EE/CompE Mutual responsibility-everyone must be a leader “Grinder nights”

Project Summary: Version 2 Suggested Changes Smaller Design, actually integrated into an existing prosthetic leg No status LEDs needed—results in less power consumption Less “power hungry” LCD More data management (additional forms) Higher resolution for sensors and motors Sound feedback Use a more compact clinometer Wireless connectivity

Questions / Discussion