Matrix Orbital DD-DB1 LCD/VFD Dev Board User Manual

Page 25

3.7.Initialize Large

Numbers*

Dec
Hex
ASCII

254 110

FE 6E

■

Loads the large number custom character bank into memory. Large numbers must be initialized before use.

3.8.Place Large

Number*

Dec

Hex
ASCII

254 35

FE 23

■

Column Digit

Column Digit
Column Digit

Places a single large decimal digit of 4 row height and 3 column width on the display at the position specified. Medium
numbers must be initialized before being placed.

Column

1 byte, value between 1 and 4

Digit

1 byte, single decimal digit to display

3.9.Initialize

Horizontal Bar

Dec
Hex
ASCII

254 104

FE 68

■

Loads the horizontal bar graph custom character bank into memory. Horizontal bar characters must be initialized before
a graph is displayed.

3.10.Place Horizontal

Bar Graph

Dec

Hex

254 124

FE 7C

Column Row Direction Length

Places a horizontal bar graph on the screen beginning at the column and row specified. The bar extends either right or

left to the length indicated. New bars will overwrite old.

Column

1 byte, value between 1 and 2 for 20x2 screen or 1 and 4 for 20x4 screen

Row

1 byte, value between 1 and 20

Direction

1 byte, 0 for right and 1 for left

Length

1 byte, length in pixels of the graph (0-100)

*Note:

This command is available for 20x4 screens only