Nerf mind bullets

[Chris] thinks that using your brain to control your trigger finger is a pass√© way of operating a toy firearm. Instead, he’s using his mind to fire foam bullets at whatever he thinks needs to pretend-die. To read his will, he’s chosen the Neurosky MindWave, a device that we just looked at for servo control. That hack shows how to patch into the USB dongle that comes with the device, but [Chris] opted to use a BlueSMiRF module from Sparkfun to connect the headset to an Arduino via Bluetooth.

The rest of the hack involves modifying the gun for automatic firing. It’s a Nerf Stampede, which takes six D-cells to power the electrical firing system. [Chris] didn’t want to carry that weight around in the body of the weapon itself so he installed a port for external power and added a firing mechanism at the same time. It uses relays to complete the circuit normally operated by the trigger. Now logic-level signals have no problem dispensing justice from the brightly-colored device.

[via Make]

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