Introduction: USB Traffic Light
*Update I have made the PCB layout for this Traffic Light*
In this instructable I will show you how to make a USB Traffic Light.
(1) LM555 Timer
(1) 10µƒ Electrolytic Capacitor
(1) 0.01µƒ Ceramic Disc Capacitor
(1) 1MΩ 1/4-watt resistor
(2) 4.7KΩ 1/4-watt resistors
(1) 1KΩ 1/4-watt resistor
(1) 10KΩ 1/4-watt resistor
(1) NPN 2N2222 Transistor
(1) USB Male Plug
The Picture of all the parts is in the next step
All the Parts.
Here is the schematic. Please leave comments & rate me. Sorry, the Schematic made on word got messed up. I'll try to update it with a better one.