The Arduino joystick is nothing but two potentiometers that allow us to measure the movement of the stick in 2-D. Just like a joystick on a game console. you can control x, y and z dimensions input by this joystick module. It considered as a combination of potentiometers and one button. A data type of the x, y dimensions are analog input signals and z dimension is a digital input signal. thus the x andy ports connect to analog pins of Sensor Shield, while z port connects to a digital pin. Potentiometers are variable resistors and, in a way, they act as sensors providing us with a variable voltage depending on the rotation of the device around its shaft. Analog joysticks are a great way to add some control to your projects.
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