I'm working on an airsoft turret that in the end will be fully controlled by a computer. It will be able to move in both X and Y axis. I'm sure I will be posting for more help on here because this is my first big project. I'm working on the wiring for the gun right now. How an airsoft gun works is pretty simple, there is a motor that spins a gear box and moves a spring and fires a BB. My idea is simply using an arduino board to control every thing (both motors and shooting it). Right now my idea for the control of the motor to make the gun shoot is to use a relay, my question is there any other way I could turn the motor on and off fast. I figure a relay since I've used them before, but they take higher voltage then what the airsoft gun battery is. Is a smaller relays then what I'm using (110V like controlling christmas lights) a good idea or is there any other ways I could make it work. Any suggestions or ideas are helpful.