*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
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
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.