Matrix Orbital LCD2041 Legacy - Manual (Page 28)

6.6 Miscellaneous Commands
Table 14: Miscellaneous Commands
Command Syntax Default Notes
Clear display FE 58
254 88
254 ’X’ n/a Clears screen of
text and graphics,
places text cursor
at top left.
Set contrast FE 50 [contrast]
254 80 [contrast]
254 ’P’ [contrast] 0x80128 Sets display con-
trast.
Compen-
sates for viewing
angle.
Contrast
is a value between
0 and 255 (hex 0
to FF). Larger =
darker.
Backlight on FE 42 [minutes]
254 66 [minutes]
254 ’B’ [minutes] on Backlight will
stay on for [min-
utes]. If [minutes]
=
0 backlight
will stay on
permanently.
Backlight off FE 46
254 70
254 ’F’ on Turns off back-
light.
General purpose output off FE 56 [gpo #]
254 86 [gpo #]
254 ’V’ [gpo #] off Turns general
purpose output
OFF.
General purpose output on FE 57 [gpo #]
254 87 [gpo #]
254 ’W’ [gpo #] off Turns general
purpose output
ON.
Read module type FE 37
254 55
254 ’7’ see table This command re-
turns a 1-byte hex
value.
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