18-549 Team 1: Reflex
Project Presentation
Mid-semester Demo
http://www.ece.cmu.edu/~ece549/spring07/team1/index.html
Inbae Lee (inbaelee@cmu.edu), Paul Thurlow (pthurlow@andrew.cmu.edu),
Ryan Frishberg (frish@cmu.edu), Siva Srinivasan (siva@cmu.edu)
18-549 Team 1: Reflex Project Presentation
Re-cap: Concept
• Gaming Glove
– Wearable glove which detects hand
movements for use as an input device
– Accelerometer data to tell hand movement
and the Telos Mote to wirelessly
communicate
• What’s Still New
– Force Sensor Resistor: button on the thumb
– Flex Sensor: finger flex detection
1/18/2007
18-549 Team 1: Reflex Project Presentation
2
System Architecture
Processed
Data
Sensor
Data
Raw Data
1/18/2007
Process Data
18-549 Team 1: Reflex Project Presentation
3
Status Update
• Hooked up the accelerometer and can
get data responsively
• Can get Bluetooth with Java and talk to
Wii-mote – cannot talk to Wii yet
• Have not gotten to work with Flex
sensors yet
1/18/2007
18-549 Team 1: Reflex Project Presentation
4
Parts
Flex sensors (Left: Electrotap T303B, Right:
Jameco Flex Sensor 15055)
Sparkfun Triple Axis Accelerometer
Breakout - ADXL330
(SKU#: Sense-ADXL330)
1/18/2007
Tmote
18-549 Team 1: Reflex Project Presentation
5
Mid-semester Demo
1/18/2007
18-549 Team 1: Reflex Project Presentation
6
Next Steps
• Quicker, smoother, more accurate
accelerometer data
• Hook up flex sensor and get that to
work
• Bluetooth to the Wii (hopefully).
Getting Wii Dev Kit to help us out
1/18/2007
18-549 Team 1: Reflex Project Presentation
7
1/18/2007
18-549 Team 1: Reflex Project Presentation
8
Lessons Learned
• Datasheets are helpful!
• Bluetooth through Java….hard
• Example programs (good ones) are
useful
1/18/2007
18-549 Team 1: Reflex Project Presentation
9
Tentative Schedule
Week Number
Progress
Week 7
Mid-semester Demo
Week 8
Prepare for Spring Break
Week 9
Have Flex Sensors Hooked Up
Week 10
Work on Performance of Reading
Data, Make laptop bluetooth
discoverable
Week 11
Tweaking for reading data; fool
with Wii Dev Kit. Hopefully
connect to Wii or start working on
application for laptop
Week 12
Continue frantically from above
Week 13
Package product nicely -- demo
1/18/2007
18-549 Team 1: Reflex Project Presentation
10
Questions and Answers
1/18/2007
18-549 Team 1: Reflex Project Presentation
11