Wireless Keyboard

1
Wireless Keyboard

• Interfacing a Wireless Infrared Keyboard with the
  iPAQ.

Brad Brabham Mike Bajkowski Chuck Robison Mike
Nguyen
2
The Three Parts of the Project

• Hardware
• Receiving the infrared keyboard signal through
  the iPAQ IR Port
• Software
• Typing tutorial for Windows CE
• Webpage

3
Software GUI
4
Application Info

• Simple typing tutor program
• Incorporates
• Normal Mode Key Matching
• Score Mode Key matching game
• Time Mode Time based game
• (Time Permitting)

5
Software

• Developed Software GUI with minor difficulties
• Tested software with stylus input
• Tested software with keyboard input

6
Hardware

• Interfaced iPAQ and Jornada with wireless
  keybaord
• Tried different techniques
• irCOMM/Raw IR
• Oversampling
• Interrupts
• Timer routines

7
Hardware Progress

• Received consistent signal on iPAQ
• Extracted bit patterns from each keypress to
  distinguish between keys
• Major Problem
• Lack of consistency in received data
• Solution
• Use of baud rate of 2400 and creative sampling
  techniques.
•  

8
Future Extensions

• Create driver for the infrared keyboard
• Probably should use IrDA for consistent standards
• Improved Typing Tutor
• Emphasize typing of words
• Error per minute calculations