Matrix Orbital DD-DB1 LCD/VFD Dev Board - Manual (Page 32)

7. Display Functions
7.1.Display On Dec
Hex
ASCII
254 66
FE 42
B ■
Minutes
Minutes
Minutes
Turns the display backlight on for a specified length of time. If an inverse display color is used this command will
essentially turn on the text.
Minutes 1 byte, number of minutes to leave backlight on (0 for infinite)
7.2.Display Off Dec
Hex
ASCII
254 70
FE 46
F ■
Turns the display backlight off indefinitely. If an inverse display colour is used this command will turn off the text.
7.3.Set VFD
Brightness*
Dec
Hex
ASCII
254 89
FE 59
Y ■
Brightness
Brightness
Brightness
Immediately sets the VFD text brightness. Default is 0.
Brightness 1 byte, brightness level from 3(Dim)-0(Bright)
7.4.Set and Save
VFD Brightness*
Dec
Hex
254 145
FE 91
Brightness
Brightness
Immediately sets and saves the VFD text brightness. 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 3(Dim)-0(Bright)
*Note: VFD model only command
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