6.5 Bar Graphs and Special Characters
The commands in this section are used to define and display bar graphs and special characters.
Table 12: Bar Graph and Special Character Commands
Command
Syntax
Notes
Initialize thick vertical bar
graph
FE 76
254 118
254 ’v’
Initializes the user character set to
make wide vertical bar graphs.
Initialize thin vertical bar
graph
FE 73
254 115
254 ’s’
Initializes the user character set to
make narrow vertical bar graphs.
Initialize horizontal bar
graph
FE 68
254 104
254 ’h’
Initializes the user character set to
make horizontal bar graphs.
Draw vertical bar graph
FE 3D [col][length]
254 61 [col][length]
254 ’=’ [col][length]
Draws a vertical bar graph at column
[col] of length [length]. Length is
measured in pixels (0x00 to 0x14).
User must first use the ’v’ or ’s’
command to initialize characters.
FE 7C [c][r][d][length]
254 124 [c][r][d][length]
254 ’|’ [c][r][d][length]
Draws a horizontal bar graph start-
ing at column [c] on row [r] with di-
rection [d] (0 is right, 1 is left) of
length [length]. Length is measured
in pixels (0x00 to 0x64 if starting in
column 1). User must first use the
’h’ command to initialize characters.
FE 6E
254 110
254 ’n’
Initializes the user character set to
make large digits.
7.1 Specifications
FE 23 [col] [digit]
254 23 [col] [digit]
254 ’#’ [col] [digit]
Place large digit number [digit] in
column [col] of the display. Cursor
moves to bottom right of large digit.
[digit] is 0x00 to 0x09, [col] is 0x01
to 0x12 (i.e. 1 to 18 decimal).
FE 4E [c][8 bytes]
254 78 [c][8 bytes]
254 ’N’ [c][8 bytes]
Defines one of 8 custom "user" char-
acters. Character number is [c] be-
tween 0x00 and 0x07.
Matrix Orbital
LCD2041
24
