This DIY Animatronic Eye tutorial by PyroElectro might be just the thing your next Halloween project needs!
“This tutorial will present a single method for controlling 2-axis of robotic eye movement using an improvised gimbal system. This will give us control for the animatronic eye to move up and down as well as left and right, just like a human’s eye. Four micro Servo Motors will be used to acuate these movements in the eye. “