I’ve built my first brainwave machine and have been very happy with the results. My only complaint is that I don’t like the serial interface on the minipov (my serial port is in the back of my computer and is not nearly as handy as the USB port in front). I’d like to build another brainwave machine with the following changes:

-USB instead of serial

-Volume Control and fader (I am nearly deaf in one ear so I’d like the ability to make that ear louder)

-make use of the extra outputs by adding different colored LED’s (prob red, yellow and blue)

-use a 9V battery instead of the AA’s.

Now here’s the problem: I’ve only just started getting interested in electronics and I am not sure how to accomplish all this (although the forums at ladyada have discussed the USB problem so I have some idea what to do there). I’m not asking anyone to figure all this out for me but I thought many people have probably already suggested or tried these changes and could offer some advice/help.

Thanks Mitch for the great project. How’s the more advanced design coming?