UM0313 datasheet(25/33 Pages) STMICROELECTRONICS

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UM0313

MEMS pointer

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6.1.1

Right side: main controls

The buttons on the right side of the GUI and their related functions are described below:

●

Connection control - Selects the COM port on which the EK board is connected.

●

Acquisition control - Starts and stops acquisition.

●

Exit - Exits the MEMS Pointer Demo application.

6.1.2

Left side: pointer application controls

The controls on the left side of the GUI and their related functions are as follows:

●

Left button/right buttons - Indicates when the left/right button on the evaluation kit is

pressed.

●

X/Y-position - Shows the current x/y coordinates of the mouse pointer on the PC

screen.

●

X/Y-deg - Shows the tilt of the evaluation kit along the X and Y axes as depicted in

Figure 23.

●

Tilt control - Allows the user to select the direction of the vertical displacement on the

screen vs. the direction in which the board is tilted. For example, by selecting “Up” the

pointer will move upward when the evaluation kit is tilted forward. Conversely, by

selecting “Down” the pointer will move downwards when the board is tilted backward.

●

Pointer speed - Sets the sensitivity of the pointer to the inclination of the board.

Figure 23.

Axis orientation

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