Matrix Orbital LK204-25 - Manual (Page 34)

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7.7. Set VFD
Brightness **
Dec
Hex
ASCII 254 89
FE 59
■ Y
Brightness
Brightness
Brightness
Immediately sets the text brightness. Default is 0.
Brightness 1 byte, brightness level from 3(Dim) to 0(Bright)
7.8. Set and Save VFD
Brightness **
Dec
Hex 254 145
FE 91
Brightness
Brightness
Immediately sets and saves the text brightness. Although brightness can be changed using the set command, it is
reset to the saved value on start up. Default is 0.
Brightness 1 byte, brightness level from 3(Dim) to 0(Bright)
*Note: LCD Model specific command.
**Note: VFD Model specific command.