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

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

3. 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”

4. 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

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

6. Success Criteria Demonstrations
Project-specific success criteria #1

7. Success Criteria Demonstrations
Project-specific success criteria #3

8. Success Criteria Demonstrations
Project-specific success criteria #4

9. 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”

10. 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

11. Questions / Discussion