Matrix Orbital DD-DB1 LCD/VFD Dev Board - Manual (Page 33)

7.5.Set
Brightness*
Dec
Hex 254 153
FE 99
Brightness
Brightness
Immediately sets the backlight brightness. If an inverse display color is used this represents the text brightness instead.
Default is 255.
Brightness 1 byte, brightness level from 0(Dim)-255(Bright)
7.6.Set and Save
Brightness*
Dec
Hex 254 152
FE 98
Brightness
Brightness
Immediately sets and saves the backlight brightness. If an inverse display colour is used this represents the text instead.
Although brightness can be changed using the set command, it is reset to saved value on start up. Default is 255.
Brightness 1 byte, brightness level from 0(Dim)-255(Bright)
7.7.Set
Contrast*
Dec
Hex
ASCII
254 80
FE 50
P ■
Contrast
Contrast
Contrast
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 1 byte, contrast level from 0(Light)-255(Dark)
7.8.Set and Save
Contrast*
Dec
Hex
254 145
FE 91
Contrast
Contrast
Immediately sets and saves the contrast between background and text. If an inverse display color is used this also
represents the text brightness. Although contrast can be changed using the set command, it is reset to saved value on
start up. Default is 128.
Contrast 1 byte, contrast level from 0(Light)-255(Dark)
*Note: LCD model only command
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