Matrix Orbital DD-DB1 LCD/VFD Dev Board - Manual (Page 25)

3.7.Initialize Large
Numbers*
Dec
Hex
ASCII 254 110
FE 6E
n ■
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
h ■
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
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
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