The most secure is by far opto-isolation. However what I do is go to the
nearest used computer place and search for old IO cards and simply connect
to the parallel port on that card, it means that if something does go wrong
I simply burn out the port on a $2 card. In all my years playing with the
parallel port I've only burned out one, they are quite resilient. TTYL


> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Tal Bejerano - AMC
> Sent: Wednesday, February 20, 2002 18:13
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [EE]: protecting parallel port
>
>
> Hello 2 All
>
> I want to do some experiments with my pc parallel port.
> How can I protect it in the easy way not to burn it if I do any mistake or
> short circuit?
>
> Thanks
>
> Tal
>
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