Parallel Port Lighting Control

Hacked Gadgets brings you schematics and photos of Raphael Assenat’s home built, opto isolated lighting control system…

“I had been thinking of controlling my room lighting using my computer. I bought some triacs and opto couplers to do this. I drew the schematic and built a prototype. Everything worked well. When I was wondering in which case to use, one of my friends suggested that I could use my computer switch box.”

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