Sorry a tad-bit off topic usb power source pinnout

[shadiedog87]

on the pinnout wich is the power pos. and neg. and how much power is given off of the usb plz help

 

[shadiedog87]

i wanna make a lil light from the usb power

 

[shadiedog87]

http://pinouts.ru/Slots/USB_pinout.shtml
all the info except is ground neg.???

 

[DigitalJunkie]

Yep pin 4 is ground/negative.
Pin 1 is +5V (limited to about 500ma max.)

Pins 2 and 3 are data,you can ignore them. (leave them unconnected.)

 

[shadiedog87]

thanx alot wasnt sure