Matrix-orbital LK204-25 Legacy Manual do Utilizador descarregar pdf (Página 29)

7.7Miscellaneous Commands

Table 7-4 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]

0x80

128

Sets display contrast. Compensates 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 [minutes]. If [minutes]

= 0 backlight will stay on permanently.

Backlight off FE 46

254 70

254 'F'

on Turns off backlight.

General purpose

output off

FE 56 [gpo #]

254 86 [gpo #]

254 'V' [gpo #]

off Turns a general purpose output OFF. [gpo #]

may be from 1 to 6. See section 2.2 for further

details.

General purpose

output on

FE 57 [gpo #]

254 87 [gpo #]

254 'W' [gpo #]

off Turns a general purpose output ON. [gpo #]

may be from 1 to 6. See section 2.2 for further

details.

Read Version

Number

FE 36

254 54

254 '6'

Reads the firmware version number of the

module. Returns a 1-byte hex value.

LK204-25 rev 1

1 2 ... 24 25 26 27 28 29 30 31 32 33

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