John Park retrospective: Auto Nerf Sentry Gun @arduino @nerfnation @johnedgarpark « Adafruit Industries – Makers, hackers, artists, designers and engineers!
Nerf Vulcan Sentry Gun tracks targets and avoids friendly fire
Foamland Security: Sibling-Proof Your Stuff With A Nerf Sentry Gun - Make:
John Park retrospective: Auto Nerf Sentry Gun @arduino @nerfnation @johnedgarpark « Adafruit Industries – Makers, hackers, artists, designers and engineers!
Robot Nerf Alarm Blasts You Awake With Foam | Hackaday