This is a project I made in 2003. It is a box with 8 leds in it that can be controlled by the parallel port of a pc.
Pictures:
Feb 04 2003
This is a project I made in 2003. It is a box with 8 leds in it that can be controlled by the parallel port of a pc.
Pictures:
Aug 23 2007
I started building a new version with 8 triacs to drive light bulbs.
Sep 04 2007
I received the missing parts and finished the pcb
Circuit diagram can be found here: Link.