Instructables

diy usb problem

hey i saw some videos on diy usb fan, thought it was a great idea, so i tried to make one too for fun
so i took my old broken logitech usb mouse and cut it open, however when i opened it i saw black, white, red, green, a string, and a copper wire - like the picture on the imageshack link (sorry for the blurr)

http://img144.imageshack.us/my.php?image=dsc00210dk5.jpg

so i still only use the red and black wire right? and in what conditions should i not use the usb for powering (such as the product uses more than 500 milliamp?)

and just out of curiosity does any1 know whats that copper wire with no shielding is for?

thanks

Picture of diy usb problem
tech-king6 years ago
the copper wire is the shield, and protects the data from stray interference.
Aww, I never get to look smart... beating everyone to it TK...
Like I tell everyone, you gotta wear smartypants. I guess having a cool hat helps.
They're stripy I'll have you know! I got a new hat the other day, which I'm enjoying very much...
ReCreate5 years ago
Black is Negative, Common Ground. Red is Positive at 5V Green Is Green Data White is White Data And The Bare one is Common Ground/ Or Shield.
scamp6 years ago
ahhh i see made one of these not long ago hold on lol let me get my fan lol kk its the red and the black the only reason i can see for the copper wire is to make the whole wire bigger and more strange what was it coneted inside the mouse?