Editing Aegray wireless (section)

= Right hand / wiring =
Each side of the datahand works by having 4 input values (called the selector) that set up a demultiplexor to output to one of 12 different lines - which correspond to a specific pair of keys.  There are then two output lines that signal if its corresponding key is down - so you can read two keys at once.  On the original chip, the top 4 left side pins output the "selector" value.  However, on the teensy, the top left pin is ground, so the first step is to remap this pin on the board to another pin on the teensy.  This is what the original project on geekhack had done.  

Additionally, in order to hook up the xbee to the teensy, I needed to leave open pins d2 and d3 (the serial uart pins).  On the original chip, these correspond to the location of first two key state lines, so those had to be remapped for me as well down to some pins on the input c port.  I remapped things by soldering together some pins on a 40 pin dip socket, and bending up other pins on the teensy to make sure no contact was made.  



On the right hand, the end result of having the chip in place looked like this:
[[File:Aegray right hand teensy top view.jpg|800px]]
[[File:Aegray right hand teensy closeup.jpg|800px]]