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
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
Cursor Line
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