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PSoC 3 Breakout Board

posted Nov 2, 2010, 1:19 PM by Bill Bai
So I got this fancy demo/evaluation board from a company called Cypress that makes this nifty little chip called the Programmable System on a Chip (PSoC).  At first glance it looks like a regular microcontroller, but it actually does a lot more.  The cool thing about it is that Cypress gives you this nice GUI and graphical programming interface that's pretty easy to use.  But the amazing thing is that the PSoC is kind of a mash-up of a microcontroller and a programmable logic device.  It can do a whole lot of digital and analog functions.  Very cool.

It's pretty sweet.  Comes with everything you need: Battery, board, USB cable.

Nice looking little board.

It comes with a bunch of demo programs like this one that shows off their capacitive sensing technology.

But the pinout for the I/O is arranged in a very "non-conducive to student development" manner

Just plugging the thing into a breadboard covers up half the board and half the pins.  Which is doubly an issue because of the two full ports we can access, half of each port is now inaccessible.  

EAGLE CAD to the rescue!  I made a simple breakout board.

This is the PCB layout for the breakout board.

So this is what it will look like when it's done fabricating.  It expands out all the I/O pins into a SIL configuration and groups the I/O ports together in a more logical fashion.

We'll see how the breakout board turns out in a few weeks when my order from BatchPCB gets here.