I do not know of any public domain schematics. However, you can purchase opto-coupled breakout boards designed for the purpose.
Do search for breakout board on this site.
One site is www.cnc4pc.com
Heya,
Anyone have any plans (or know where I can get one) for an optocoupler circuit for the parallel port to opto-isolate the PC from whatever you plug into the parallel port?
Thanks,
Mike
I do not know of any public domain schematics. However, you can purchase opto-coupled breakout boards designed for the purpose.
Do search for breakout board on this site.
One site is www.cnc4pc.com
Yes, have a look at http://www.pminmo.com/ Lots there.
Enjoy.
Peter.
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