Simply connect to two analog inputs, the robot is at your commands with X,Y control. It also has a switch that is connected to a digital pin. This joystick module can be easily connect to Arduino by normal IO Expansion Shield with supplied cables.No soldering required, Reusable for prototyping or design applications of electronic circuit,modify or revise the circuits easily.

Specifications:
- Input Voltage: DC 3.3V - 5V
- Output signal: the module special two-way analog output and a digital output interface, the output value corresponding to (X, Y) biaxial offset, the type of analog; keys that the user press the Z axis, Its type is a digital switch.
- Arduino controller can be programmed, the sensor expansion board plug, complete with creative remote interactive works.
- Cross joystick is a bi-directional 10K resistor, with the rocker in different directions, the tap resistance with the change. This module uses a 5V power supply, the original state of X, Y read voltage of 2.5V or so, when pressed with the arrow direction, the read voltage value increases with the maximum to 5V; arrows in the opposite direction to press, read the voltage decreases, The minimum is 0V.

Reference
- http://bit.ly/Dual-Axis-Joystick-Module

Specs: