So hey, I've been thinkign for years that cause im stupid i'v wanted one of thee USB nerf dart launchers that they sell. like this one http://www.walmart.com/ip/laptop-bags-cases/16817872?findingMethod=rr
Then came thinking, hey what if i wanted to try and control this thing with an arduino. make it so that when a person walks in a room, and trips an IR sensor in an area. itll open fire on them (then lulz ensue). What im wondering. I know I could probably open the thing up, and control the launcher and motors to aim it directly off the arduino, bypassing the USB controller it probably has (haven't got it yet). But say i wanted to keep it intact. since this thing is slaved to your computer, would that mean id need a USB host shield to drive it?