Datasheet

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1. Introduction
Grove - Thumb Joystick is a Grove compatible module which is very similar to the 'analog' joystick on PS2
(PlayStation 2) controllers. The X and Y axes are two ~10k potentiometers which control 2D movement by
generating analog signals. The joystick also has a push button that could be used for special applications.
When the module is in working mode, it will output two analog values, representing two directions.
Compared to a normal joystick, its output values are restricted to a smaller range (i.e. 200~800), only when
being pressed that the X value will be set to 1023 and the MCU can detect the action of pressing.