Pan tilt control with an Xbox controller: the Processing code

To be able to use the buttons, joysticks and triggers of the xbox controler into processing easily, we need to use a librairy. There is a special librairy dedicated to jospads and controllers, it is called ProControll.

More info about Procontroll library: http://creativecomputing.cc/p5libs/procontroll/

With a controller like the Xbox 360 controller, acquiring a button change is quite easy. However, acquiring and using the value, for one or several axis, of the joystick, is a bit more difficult.

Actually, for the josticks, the value returned by the controller is a large floating decimal value.

This one needs to be converted into a value that we can directly use and send to the Arduino.

Also, as the joytick is not a perfect circle, and as it can be very sensitive, a function to control the tolerance needs to be used.

I have looked over internet, and I found this video on youtube:

The person described how to control a motor with a Xbox controller. There is below the video the description and also the code that the person used. I thank a lot Mr Mspinksosu because his video and code helped me a lot.

I adapted the code to fit in my project. The main changes are that I simplified the code a lot, I adapted the Processing side to get the value of the X and Y axis of the right joystick, and on the Arduino side, I removed the interuptions and I changed a bit the code in order to drive the servo with the servo.h library.