usb power switch

NESBest · Post by **NESBest** » Mon Jan 15, 2007 5:37 pm

so i have this usb recording interface for my computer, theres no power switch on it though(doesn't rele bother me) but my dad complains that its always on, whatever, anyways i was thinking if someone told me which wires gave the unit power i could splice a switch in there, any ideas of what to do?

Post by **bicostp** » Mon Jan 15, 2007 6:32 pm

On a USB cord, red is power, black is ground, and green and white are data. You could put a SPST switch on the red wire.

Why not unplug the unit when you don't need it?

blackbox_dev · Post by **blackbox_dev** » Mon Jan 15, 2007 7:45 pm

The black wire would work too, and I would reccomend it over the red wire. That's just me though. Either one would be fine.

timmeh87 · Post by **timmeh87** » Mon Jan 15, 2007 8:15 pm

sometimes the metal shielding of the plug doubles as ground, in that case switching the black wire would have no effect.

NESBest · Post by **NESBest** » Mon Jan 15, 2007 9:00 pm

well my dads been unpluging it, but u know, bending over half a foot takes way too much energy

i thought it'd be cool to have a switch on it tho, im gonna mount a lightswitch or something like that under the desk