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User Controls
Power ON/OFF:
Touching this symbol will either turn on or off the unit. When unit is on (power cable connected), the symbol is
not illuminated until the unit has been turned on once, then symbols will illuminate in white color. When unit is off
(power cable still connected) after it was previously turned on, the symbol is illuminated in white color (you can even
use the (-) and (+) to adjust the intensity of the illuminated symbols when in this state). When no power cable is
connected, no symbols will be illuminated.
This button has extended functionality, please review "API" section below
Buzzer:
The location of the Buzzer is not visible for the eye. Please review the "User Controls - Advanced Usage" section
available on the next page (specifically "Watchdog and ALARM Control" in the linked DOC101681-1 document) on
how to implement the Buzzer in your own applications and systems.
API / SMBUS / Touch Keypad Access
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
B1
B2
B3
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 fi nd
document and drivers on the DVD media. The fi les you need are found in the "Demo and .dll for Touch Keypad
Access" menu button option.
Operation
IND100064-43
Default Operation
0x81
Button pressed down detection
0x80
Button press release detection
+ 0x00
Decrease Brilliance / Brightness was detected
0x81
Button pressed down detection
0x80
Button press release detection
+ 0x01
Power ON/OFF was detected
0x81
Button pressed down detection
0x80
Button press release detection
+ 0x02
Increase Brilliance / Brightness was detected
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