Multi-mode Led Driver

[Douglas.Porter]

Hello everyone:

This is my first time posting on this forum; I have had a bit of a snag on a design team I'm on...

I need a small circuit board to watch two contacts for a finger (bridging the gap) and the control LEDs. Here is something like what I'm after:

Pulse (L-H-L)___RED___BLUE___GREEN
________0th___OFF____OFF____OFF
________1st___ON____OFF_____OFF
________2nd___OFF___ON_____OFF
________3rd___ON____ON_____OFF
________....
________nth___OFF___OFF_____OFF

So, what I'd like is some kind of circuit function to give the user the ability to scroll though different flashing effects. The source can be 3-6 VDC and I only need one of each LED. Does anyone have any suggestion of how I should approach this? I have experience with CAD but, I've never used PCB design software before; I have a deadline soon for PCB file.
Is there a good way to design one of those (excuse my lack of lingo) small black blobs of logic to stamp on a board? Any help/direction would be greatly appreciated!
Thanks.

 

[OlPhart]

Your sequence looks like a binary counter, 7493 or equ. A finger bridge as clock can be done many ways, but a CMOS comparator with appropriate levels set should do. Positive feedback can address "switch bounce". For individual outputs use an address decoder, 74138 or equ.

 

[Douglas.Porter]

Can all/most of this be designed with a COB? If so, any suggestion as to where to start with designing it?
Thanks!