Talking, Arduino-powered plush Portal turret is wonderful A little bit of sewing, some off the shelf components, a love of portals: … Ben Kuchera – Apr 26, 2011 6:17 pm | 13 ...

Fans of the awesome and iconic Portal and Portal 2 games created by Valve, who enjoy building Arduino powered devices, might fancy building their very own tracking and talking model Portal turret. ...

Using an Arduino Uno connected to an HC-SR04 ultrasonic sensor, and features motion-activated lasers that move back and forth, ... • The turret uses a proximity sensor to govern its functioning.

A student in the University of South Florida Makecourse has created their own version of the Turret from Portal, based on an Arduino and complete with lasers activated by motion. The core of the ...