Check out the full documentation for this project to build your own! https://learn.adafruit.com/guardian-robot-zelda-botw/
Since the last Guardian Robot project, we’ve gotten a number of requests to add a servo and LED to the head – In this project, we’ll show you how to do that!
Mounted to the eye is a 10mm blue LED. The head itself is attached to a servo horn and mounted to a micro servo. The head can freely rotate while the eye blink randomly. Surrounding the body are 5mm blue LEDs that illuminate the various surface details.
The random motion of the servo and eye blinks give the illusion of the robot “searching”. It’s appears quite organic and live like, adding much more dimension to this replica.