29
7.5
Set Backlight
Colour
Dec
Hex
ASCII
254 130
FE 82
■
é
Red Green Blue
Red Green Blue
Red Green Blue
v5.0
Set the colour of a tri-colour backlight. Only for tri-colour
displays. Default is white (255, 255, 255).
Red
Byte
Brightness level of Red from 0(Dim) to 255(Bright).
Green
Byte
Brightness level of Green from 0(Dim) to 255(Bright).
Blue
Byte
Brightness level of Blue from 0(Dim) to 255(Bright).
7.6
Set
Contrast
Dec
Hex
ASCII
254 80
FE 50
■
P
Contrast
Contrast
Contrast
v5.0
Immediately sets the contrast between background and text. If an inverse display color is used this also represents
the text brightness. Default is 128.
Contrast
Byte
Contrast level from 0(Light) to 255(Dark).
7.7
Set and Save
Contrast
Dec
Hex
ASCII
254 145
FE 91
■
?
Contrast
Contrast
Contrast
v5.0
Immediately sets and saves the contrast between background and text. Although contrast can be changed using
the set command, it is reset to this saved value on start up. Default is 128.
Contrast
Byte
Contrast level from 0(Light) to 255(Dark).
6.8
Data Security
8.1
Set
Remember
Dec
Hex
ASCII
254 147
FE 93
■
?
Switch
Switch
Switch
v5.0
Allows changes to specific settings to be saved to the display memory. Writing to non-volatile memory can be slow
and each change consumes 1 write of at least 100,000 available. The Command Summary
outlines which
commands are saved always, never, and when this command is on only. Remember is off by default.
Switch
Byte
1 for on or 0 for off.
8.2
Set Data
Lock
Dec
Hex
ASCII
254 202 245 160
FE CA F5 A0
■
╩
?
á
Level
Level
Level
v5.0
Temporarily locks certain aspects of the display to ensure no inadvertent changes are made. The lock is released
after a power cycle. A new level overrides the old, and levels can be combined. Default is 0.
Level
Byte
Lock level, see
Data Lock Bits
table.
Table 19: Data Lock Bits
Display
Command
Reserved
Setting
Address
Reserved
Reserved
Reserved
7
6
5
4
3
2
1
0
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