I am currently building an application using a joystick and I need help building/finding one. I managed to build one using 4 pushbuttons (one for each direction), but these are taking up too many digital pins, which I need for other things.
I would like to use the variant using 2 potentiometers (one for each axis) like we see in the tutorial here: http://www.arduino.cc/en/Tutorial/JoyStick
. I have never seen something like this before, and I don't really know how it works.
Is the joystick in the picture something you can buy at an electronics store? Does anyone have a part number for a joystick using 2 potentiometers that I can buy?
If not, can anyone give me pointers on how to build something like that? How can you use one "stick" to control 2 potentiometers going in different directions?
Thanks for the help,