What you will need.
You should know a few things before you begin...
The interface between computer and servos.
Servo motors will pan, tilt, and fire your gun.
How to go about building a sturdy base for your sentry gun.
How to wire everything up.
Install the Arduino and Processing development environments.
How to download and set up the Project Sentry Gun code.
A brief description of software features and calibration method.
Give the sentry pinpoint precision.
Time to show off your finished sentry!