t800desktoy
This is the code i used for my desktop toy. Its a t800 terminator head with 5mm leds fitted into eyes. The code has 7 led blink effects and it makes use of a pir sensor connected to arduino. once motion is detected it will randomly play one of the 7 led blink effects.
two leds are connected to pin 3 and pin 5 on arduino nano (these pins has pwm) The motion sensor is on pin 2
of course the leds has 325ohm resistors on them too.
pretty simple
t800 model can be downloaded at http://www.thingiverse.com/thing:18338
Read the complete how to make here - http://www.h4hacks.com/2015/07/now-that-terminator-genisys-is-out-how.html