Casio IT-2000W Specifikace stáhnout pdf (Strana 51)

2.3.12 Sensors

The IT-2000 has the following three types of built-in sensors:

Illumination

sensor

Attached to the upper section of this terminal and used to sense the ambient

light intensity. It is used for the Auto Backlight Control (ABC) function. It

cannot be controlled directly from the application.

(For more information about the system library refer to Chapter 6 “Keyboard

Controller”.)

Temperature

sensor

Attached to the inside of the main unit and used to detect the ambient

temperature. It is used for Automatic Brightness Adjustment (ABA) of the

liquid crystal display. It cannot be controlled directly from the application.

(For more information about the system library refer to Chapter 6 “Keyboard

Controller”.)

Battery voltage

level sensor

Detects the voltage levels of the main battery, sub-batteries, and card

battery. It is used by the system to take action against low battery voltges. The

system manages low voltage through this battery electric potential sensor.

Applications can acquire the information from this battery voltage level sensor

via the system library or APM BIOS.

(Refer to Chapter 2.2.4 “Battery Voltage Monitoring Process”.)

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Casio IT-2000W Specifikace Strana 51