As many of you are probably aware, Portal 2 was released last week ... by stuffing an Arduino inside the turret, along with a wave shield for playing sounds. Proximity and motion sensing are ...

He had picked up the Portal 2 Sentry Turret USB Desk Defender ... lights up and plays signature sound bites from the game, whenever motion is detected nearby. Originally produced by American ...

To keep the hardware footprint small, Reckless_commenter opted to throw in a Raspberry Pi Zero 2 W. The Pi is ... traits of the Portal sentry turret is the eerie sound bites they spout when ...