Editing Aegray wireless (section)

= Left hand =
On the left hand, there was originally no micro controller (it just takes inputs and outputs through its connector port), so there was no simple way to plug in a teensy like there was on the right hand.  After messing around with the connector for a while, I reversed out what each pin on the connector did.  The following is a (rough) schematic of the connector, as seen if you were looking from the inside of the datahand towards the connector thats being plugged in (IE if you're just looking at the back of the unplugged left hand, that is backwards):

[[File:Aegray left hand connector pinout.jpg|800px]]



The K0-K1 are the key state outputs (inputs to the teensy), S0-S3 are selector inputs (outputs from the teensy), L0-L3 are the different leds (output from the teensy), and the other pin is the reset button on the back of the datahand (an input to the teensy).  The reset button has to have a pull down resistor to ground, otherwise it will randomly fluctuate.


I currently have the left hand closed up and its harder to open because the battery pack is covering up some screws, so I don't have any pictures of the inside.  But, I built a cheap connector by taking a 25 pin connector from radio shack, breaking it to be only 15 pin (8 on top, 7 on the bottom), then soldering up the wires to the correct location on another teensy I put in the left hand.  This teensy was again connected to an xbee and they both fit snugly underneath the keys when the datahand is closed up - although this probably only works because I keep my keys relatively high up by default.  


This connector currently just gets pinched into place by the back plastic piece, which is quite hacky.  If I had wanted to take the time, it would be pretty easy to just solder the pins directly on the inside, and not require an actual connector showing.  I don't have the pins / schematic currently with me for the left hand, but I could probably dig up those files if someone is interested.