User Manual

PoKeys user manual
47
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Figure 22: Character LCD testing dialog
LCD settings
In this part, user can set number of rows and columns in the LCD used. Support for LCD can be
enabled or disabled also.
LCD operations
Before user can start using the LCD, LCD module must be initialized. This is done via 'Initialize LCD'
button. Button 'Clear LCD' clears LCD display and moves cursor to home position. LCD module is
initialized automatically by PoKeys device on device startup if ‘Enable LCD support’ option is enabled.
User can also set entry mode settings of LCD module. Cursor can be set-up to move either right
(normally) or left after each character displayed. If 'Display' shift is enabled, whole display shifts with
every new character displayed.
Settings are processed after user clicks button 'Set Entry mode' and work only in ‘unbuffered’ mode
described above.
Display on/off settings
User can set on/off switches for whole display, cursor and cursor blinking.
Settings are processed after user clicks button 'Set LCD on/off' work only in ‘unbuffered’ mode
described above.
Custom characters
Simple interface enables to draw up to 8 custom characters. These characters can then be used on
display. Selecting 'Live edit' mode will transfer the character each time a change is made to any of
the pixels. Character can be previewed via button 'Print', which puts current custom character on the
LCD display. The ‘Copy code’ button can be used to export the character data in a form of C-style
array, as shown in the table below.