Sparky is a robot dog made from found objects.  The tail and head will move if a shadow is cast upon its chest-mounted sensor.

Sparky's brain is a Picaxe 08M2 microprocessor.


Sparky is operational and still under construction for Robogames 2012



Hand-wired 08M2 Picaxe controller board.


Picaxe controller board in-place.


Sparky's legs and programming port belly button.


Head servo mounted inside.