Controller

Veverak was thinking about making custom robot controller (or many other things-controller), found interesting joysticks:

https://www.parallax.com/product/27808 http://www.himodel.com/radios/FrSky_Replacement_Transmitter_Joystick_Assembly_PR10.html

point is that for this to be actually usable, you want joystick that are precise and easily controllabre (aka, something that are used in common RC controllers) -> you don't want to DIY this with sparkfuns joysticks :)