Matrix-orbital LCD2041 Legacy Manuel d'utilisateur télécharger pdf (Page 21)

Table 5: 8 Byte Map

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

A "1" bit indicates an on (black) pixel, a "0" bit indicates an off (clear) pixel.

Once deﬁned, a character is displayed simply by issuing a value (0x00 to 0x07) corresponding to the

character number. The character will be laid out as follows;

Table 6: Character Values

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

NOTE Custom characters will be erased if any of the "Initialize bar graph" commands

are issued.

Example of a degree symbol;

txUart.sendByte(0xFE); //command prefix

txUart.sendByte(’N’); //custom character command

txUart.sendByte(0x00); //custom character value 0-7

txUart.sendByte(12); //8 bytes to create

txUart.sendByte(18); //the custom character

txUart.sendByte(18);

txUart.sendByte(12);

txUart.sendByte(0);

Matrix Orbital LCD2041 18

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Matrix-orbital LCD2041 Legacy Manuel d'utilisateur Page 21