Instruction Manual

API / SMBUS / Touch Keypad Access

Appendix

IND100077-136

Extended functionality for Brightness (-/+) and Power ON/OFF touch symbols

As referenced in the “User Controls Overview” chapter in this manual, you can access and interpret actual touches

detected on the 3 front symbols (Brightness and Power ON/OFF) through the Touch Screen driver installed for the

unit via its HID interfacing protocol.

Visible Symbol Symbol ID Response Hex ID Default Operation

B1 0x81 Button pressed down detection

0x80 Button press release detection

+ 0x00 Decrease Brilliance / Brightness was detected

B2 0x81 Button pressed down detection

0x80 Button press release detection

+ 0x01 Power ON/OFF was detected

B3 0x81 Button pressed down detection

0x80 Button press release detection

+ 0x02 Increase Brilliance / Brightness was detected

For installation, implementation, usage and example code, review the document via our website:

http://www.hatteland-display.com/pdf/misc/doc101699-1_touch_keypad_access.pdf

and download the drivers package from (includes .dll and demo executable):

http://www.hatteland-display.com/drivers/touch_keypad_package.zip

or download the entire drivers package for MMC units:

http://www.hatteland-display.com/support_hardware_drivers_panel_computers_seriesx.php

or access both document and driver package as described above from:

“Drivers and Documentation DVD” (MEDIA STD-008 or higher) that are included in the shipment contents.

Please review to “Installing API Drivers” section as explained on the previous pages if you are unsure how to nd

document and drivers on the DVD media. The les you need are found in the “Demo and .dll for Touch Keypad

Access” menu button option.