Instructables: How to Built a Chess Robot With Arduino Mega

The board executes micro-Max source code, allowing you to run chess logic on an Arduino Mega and execute the proper moves with a 6DOF mechanical arm.

Instructables: Air Piano Using IR Proximity Sensor and Arduino Uno Atmega 328

We could just eliminate the need of keys in a piano by using some sensors.

Instructables: DMX Animatronic Robot

This project describes the development of a fully functional animatronic prototype.