This Mini Remote Control IR emits a 38kHz Modulated IR Signal that can be used to Control a Robot or other Electronic Project Across the Room. It has 21 Buttons, including Directional and Numeric Input Buttons.

The Joystick is very similar to the 'analog' joystick on PS2 controllers (PlayStation 2). The X and Y axes are two 10k potentiometers that control 2D movement, generating analog signals. The joystick also has a button that can be used for special applications, so the entire unit can emit X-Y movement signals in both directions and in the Z direction.

This unit communicates with the MSCore via the GROVE A interface. The I2C address is 0x52, Reading the data transferred from the Joystick, you can obtain the movement information from the Joystick.