Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I know that the correct voltage in the parallel port is 5V/0V.
However, when I ask to have it set, all I can get is 3.3V (I used a multimeter for measurement)...
It's still within TTL logic levels, nothing to worry about - and modern (well not that modern if they have parallel ports) PC's probably run off 3.3V instead of 5V anyway.
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