Build a big red button to emulate a keyboard ENTER key press Enable the button activation using a toggle switch. Enter the command you want to execute on a command prompt on your PC and hit the big red button.

1 x Big Red Button

1 x extra bright red LED

1 x toggle switch

2 x 4mm spade adapter plug

4 x 6mm spade adapter plug

soldering kit

1 x enclosure

double sided tape

Arduino UNO starter kit from SparkFun

 

Builds on the code of 

DojoDave <http://www.0j0.org>

and Tom Igoe