|Contrast value ( 1 to 1024 )
Model : CUBLOC + GHB3224C
This command controls the contrast of the LCD. Use this command with care, the contrast setting is sensitive. You will most likely need to adjust the contrast wheel on the back of the LCD after using this command.
Contrast 450 Delay 500
Please add a 500ms delay after each call to this command to prevent an overrun in the graphics buffer.