2010-04-15

Yeah!

The project I mentioned eariler on this blog in Aww Fuck, has finished its initial design phase and is about due to begin prototyping.

It is a developer board w/ perpherials (serial, GPIF, ADC, bellswhistles, etc.) based on the Digikey.com:Cypress EZ-USB FX2LP™, successor to the Cypress EZ-USB FX™ which my team built the Turner oscilloscope with.[1]

In contrast to the $500 Digikey.com:Cypress EZ-USB Development Kit this has been designed down to a minimum system with only the peripherials needed to use the Microprocessor. I won't promise an exact price, but i expect that it will sell for less than $100 and more than $20.

I plan to develop a number of projects with this board over the next year, including the keyboard.

2010-04-10

Rubik's Cube continued

About two weeks ago I came up with a workable design, and key layout for this thing.

I had to make it a 3x3 (2-1-2) so that the electrical interconnects with the corner pieces not be interrupted by turning the faces without building a tree of phonojacks, or having to make extremely precise overlaping cone shaped cuts into a solid base material, then inlaying wires and springs to establish the same connections.

This is also good since I can also getaway with lower build quality.

I had hoped to use this as an exercise to learn sourceforge.net:KyCAD, however the design I have come up with makes use of concentric rings to match the connectors I have designed which has made this too difficult for me to implement on my first day using KyCAD.

So I went back to Eagle to draw the inner faces of the cubes, and after learning that it would cost me $40 for enough DigiKey:tactile switches I will be building my own switches.

If this works I promise to make a this into a kit.

XD , I can implmplement the W3Schools.com:ISO 8859-1 Symbols on the extra 30 (odd) empty cells! No more will I need to remember
Alt
+{
1
,
8
,
1
}=µ or
Alt
+{
9
,
3
,
7
}=Ω