Matrix Orbital VFD2041 Legacy User Manual

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5.1.2 Set brightness (254 89 [brightness])

This command sets the display’s brightness to [brightness], where [brightness] is a value between 0x00

and 0x03 (between 0 and 3) according to the table below.

Table 9: Brightness Settings

Hex Values Brightness

0x00

100%

0x01

75%

0x02

50%

0x03

25%

Lighting conditions will affect the actual value used for optimal viewing. Brightness is set to 100% by

default.

5.1.3 Display on (254 66 [minutes])

This command turns on the display for a time of [minutes] minutes. If [minutes] is zero (0), the display

will remain on indefinitely.

NOTE The factory default for display is on.

5.1.4 Display off (254 70)

This command turns the display off.

5.1.5 General purpose output off (254 86)

This command turns OFF any of the general purpose outputs. [gpo #] is 1 to 8.

NOTE OFF means that the GPO pin floats (high impedance).

5.1.6 General purpose output on (254 86)

This command turns ON any of the general purpose outputs. ON means that the output is pulled low

(ground via 240 ohms).

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