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Matrix Orbital LCD/VFD Legacy User Manual

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Cursor Blink Off

ASCII 'T', Hex 54, Decimal 84

Syntax 0xFE 0x54

To turn off the blinking cursor at the current position send a command prefix followed by the character 'T'.

Create Custom Character

ASCII 'N', Hex 4E, Decimal 78

Syntax 0xFE 0x4E<8 bytes>

This command creates a custom character. For the LCD2021 the user can have up to eight custom characters. To execute

this command, send a command prefix followed by the character 'N'. The display will now await the number which identi-

fies the custom character. This number must be between 0x00 and 0x07. When the module determines what character it's

working on, then the user must send 8 bytes. This defines the display character. See Diagram A below for and explanation

of the display character structure.

MSB

LSB

* * * 1

2

3

4

5

Data Byte 1

* * * 6

7

8

9

10

Data Byte 2

* * * 11 12 13 14

15

Data Byte 3

* * * 16 17 18 19

20

Data Byte 4

* * * 21 22 23 24

25

Data Byte 5

* * * 26 27 28 29

30

Data Byte 6

* * * 31 32 33 34

35

Data Byte 7

* * * 36 37 38 39

40

Data Byte 8

Diagram A

Pixel Layout of Display Characters

General Purpose Output On

ASCII 'V', Hex 56, Decimal 86

Syntax 0xFE 0x56

To turn on the general purpose output, send a command prefix followed by the character 'V'. Please note that the output is a

current sink. (Max 20mA)

General Purpose Output Off

ASCII 'W', Hex 57, Decimal 87

Syntax 0xFE 0x57

To turn off the general purpose output, send a command prefix followed by the character 'W'.

1 2 3 4 5
6 7 8 9 10

11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
26 27 28 29 30
31 32 33 34 35
36 37 38 39 40

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