Servo?

OK im new to this arduino thing my neighbor gave me a good bit of his stuff and i barely understand it. My goal is to eventually make a creation that aids me in my paintball gun. But first i need to make it by the computer before going mobile. My question is am i looking for a servo? I need something that when given a signal turns a set amount of degrees every time its given a signal. And i need it to be as fast as possible im not sure the limits of the hardware. SO, what am i looking for and are there codes out there for what i am looking for? Thank you for all the help.

What is it that you want to do? How much torque will you need? Define fast. A standard hobby servo typically has a speed of around 200mS to move 60 degrees.

Im making my own version of a e grip. The idea is to remove almost all of the time spent pulling and releasing the trigger. The way i want it setup is to have about 1cm of length in my trigger pull. Every time i pull the trigger that far i want it to press a switch that turns the servo 90 degrees with a four prong. The servo only needs enough torque to push the sear in my gun just a smidge.

Google "arduino servo" and look for some videos so you can see how fast they move. Servos are very easy to interface to Arduino. Which board do you have? Have you written any code for it and gotten it to upload?

I have the arduino duo. I haven't written anything just yet i'm going to pick up my usb cable tomorrow and then ill start . BUT i am looking for a servo correct that's the right piece of hardware correct?

catrease01:
I have the arduino duo. I haven't written anything just yet i'm going to pick up my usb cable tomorrow and then ill start . BUT i am looking for a servo correct that's the right piece of hardware correct?

Yep, seems a servo would work, subject to you choosing one with the right speed and torque.

Have a look at eg Hobby King to see the range. There are different physical sizes, and cheaper ones have plastic mechanicals inside compared to the more expensive ones.

They all hook up the same: red and black to power, yellow (or white or orange) to the control pin. There are tutorials here and here. Don't supply power from the Arduino 5v though, in spite of what those tuts show. Rather supply them separately, and hook the ground wire from that supply to the Arduino.