4x4 Matrix ..logic..

This should be a LED-matrix :D My first one - how is it? Well actually there was one version before with a saving function and a automatic one, and.. others, all went crazy so... this is whats left! I hope and will be happy about any improvements, comments.. you know :D The controls under the LEDs: The 4 ones are there to choose any LED! They are numbers in binary: The first two say in what COLUMN the LED is and the last in what ROW. Example: 1101 means the LED in the 4TH column and the 2ND row. (Because we begin to count from 0 :P) Which is the same as the 14th one! (From left to right, top to bottom) AND FINALLY the ON/OFF switch at the bottom Logic behind it: 4Bit input are split in two. There are two demultiplexers (almost ragequit because there are no ones T.T) which lead the current into 2 outputs from 8 which is there position. The demuxes each have 4 outputs which leads to a corresponding row/column. I designed it so that when you would add a counter (4bit) the LEDs would be switched on in a row. Really simple!

published 9 years ago