Matrix Orbital LCD/VFD Legacy User Manual

Page 8

Go To Position

ASCII 'G', Hex 47, Decimal 71

Syntax 0xFE 0x47

To set the current cursor position, send a command prefix followed by the character 'G' and two values defining the column

and row of the desired cursor position. Example:

0xFE

0x47

0x01 to 0x14 for a twenty column display

0x01 to 0x02 for a two line display

Go To Top Left

ASCII 'H', Hex 48, Decimal 72

Syntax 0xFE 0x48

This command resets the current cursor position to the top left of the LCD screen. To execute this command send a

command prefix followed by character 'H'.

Initialize Horizontal Bar Graph

ASCII 'h', Hex 68, Decimal 104

Syntax 0xFE 0x68

Before any horizontal bar graphs may be created, this command must be executed. It only needs to be sent once to initialize

the custom characters for bar graph creation. Due to the fact bar graphs use custom characters, no user custom characters

may be displayed or created while bar graphs are in use.

Make Horizontal Bar Graph

ASCII '|', Hex 7C, Decimal 124

Syntax 0xFE 0x7C

This command places a horizontal bar graph at the specified column and row with the specified width. The format of the

command is as follows:

0xFE

0x7C

0x01 to 0x14 for a twenty column display

0x01 to 0x02 for a two line display

0 for left to right, 1 for right to left

0x00 to 0x64 (0 to100) for a twenty column display

Bar length is in pixel widths. On a twenty column display the maximum bar graph width is one hundred pixels (if the bar

graph starts at the edge). This is due to the fact that each of the twenty columns on the display are five pixels wide. The

width of the space between columns is not taken into account.

Initialize Thick Vertical Bar Graph

ASCII 'v', Hex 76, Decimal 118

Syntax 0xFE 0x76

Before any thick vertical bar graphs may be created, this command must be executed. It only needs to be sent once to

initialize the custom characters required for bar graph creation. Bar graphs use custom characters, therefore no user

custom characters may be displayed or created while bar graphs are in use.