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CHAPTER 8 SPECIAL CONSIDERATIONS
Touch Panel User Interface Considerations
When developing applications for a touch panel interface, touch panel activation only by the ball of the finger
means there are limitations to what the user interface of an application can expect of a worker
User interface elements such as buttons, that require activation by a bare finger tip on the touch screen
•
should not be smaller than 10 mm x 10 mm (as opposed to 5 mm x 5 mm if a stylus were an option).
Do not put user interface elements close to the edge of the display. They're hard to activate and they
•
might not be fully covered by the protective overlay. Keep the touch points at least 2 mm in from the
edge.
Tips for Improving Battery Life
To improve the life of the battery:
Set the display backlight to turn off quickly and reduce the display brightness.
•
Set the keypad backlight to turn off quickly.
•
Set the wearable computer to suspend when not in use and maximum CPU performance.
•
Set the WLAN radio to save maximum power.
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After making these settings, they can be saved in Registry files to make them cold-boot persistent.
Display Backlight
NOTE Changing the Backlight setting on the Voice Only WT41N0 will change the brightness of the Application
Controlled LED. Refer to the EMDK Help file WT41N0-VOW Programming page for more information.
To change the display backlight settings in order to conserve battery power:
Select Start > Settings > Control Panel.
1.
Select Backlight icon.
2.
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Troubleshooting
