Usb Powered Blinking Led

i will show you how to make a led blink and use a usb port of the computer as a power source.

What you will need:
1] 555 timer
2] 1k ohm resistor x2
3] 100 ohm resistor
4] led{any color i used a green}
5] capacitor [depending on the blinking rate. see next step}
6] circuit board
7] usb male connector
8] 555 timer holder {whatever it is called}

you can use any capacitor in the range of 10uf  to 1000uf depending upon the blinking speed.
if you take a capacitor of less value will blink the led faster.
if you take a capacitor of more value will blink the led slower.
i used a 100 uf capacitor.

here is the circuit digram . solder the the circuit according to the digram.

we will need only the red and black wire.
my connector had red and a blue wire.
connect the red wire to the positive terminal of the blinking circuit.
connect the black wire to the negative terminal of the blinking circuit.

if you like the instructable follow and plz rate and please please vote for the 3rd epilog challenge
 my e-mail id is rohit1398@gmail.com