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Electronics => Electronics => Topic started by: kpmcgurk on March 16, 2010, 05:42:27 PM

Title: LED based Cribbage board
Post by: kpmcgurk on March 16, 2010, 05:42:27 PM

I am working on a project for school and I need to design and machine a cribbage board on a CNC mill. It was required to use pegs like normal cribbage, but being the normal risk taker and electronic geek that I am, I want to replace the pegs with LED's.

Project overview...
one LED per hole(120 holed per player)(3 players)(making 360 holes/LED's :o)
Each player has a couple push buttons that will control the board (move forward/back 1,5 clear... etc)

For me the easy part will be be the player controls and writing the code for them.

I am stumped by the best way to control the 360+ led's that the board will need.The current thought  is to multiplex all of the LED's using a series of ATMEGA328's communicating with each-other through SPI. Is there a better way of doing this at a relatively low cost(<$100)?

If so, please share your ideas with me as the more brains at work makes projects more successful!   

Thanks all! (If you have any questions, please ask!)

Title: Re: LED based Cribbage board
Post by: little-c on March 17, 2010, 01:03:52 AM

logic chips,
you can use multiplexers and NAND/NOR gates.
not sure how yet, but it can be done.

Title: Re: LED based Cribbage board
Post by: Razor Concepts on March 17, 2010, 03:40:10 AM

Use lots of shift registers.
HC595 is common

Or, use some matrix LED driver ICs