A Multifunction Led Display is the easiest way to create your own information system display. This display is a kind of colored LEDs controller through the parallel port using a very, really very easy scheme. The software is a Perl script under GNU(GLP) license and works only under GNU with Linux. This version display 3 system views modes: a Binary Clock (Only for Geeks), a Memory Status Bar and HDD Status Bar, the script have a auto mode to change the system views (10 seconds Binary Clock, 4 seconds Memory Status Bar and 4 seconds HDD Status Bar). Link.
2 thoughts on “HOW TO – Build a Binary LED Clock”
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this circuit could well damage your computer. When working with an array of LEDs, please please please put a resistor for each LED on the positive side, instead of one on the ground side
ok fine, it wont blow your port, im just using scare tactics to get people to use a better method of building circuits :P