PK202-25 Matrix Orbital, PK202-25 Datasheet - Page 42

• Manufacturer Part Number: PK202-25
• Description: LCD Character Display Modules Black Background Yel/Grn Text
• Manufacturer: Matrix Orbital
• Series: PK202-25r

Specifications of PK202-25

• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 25.73 mm
• Background Color: Black
• Backlight Type: LED Yellow / Green
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.6 Bar Graphs and Special Characters
Matrix Orbital
The commands in this section are used to define and display bar graphs and special characters.
Command
Initialize thick vertical bar
graph
Initialize thin vertical bar
graph
Initialize medium digits
Initialize horizontal bar
graph
Define custom character
Draw vertical bar graph
Draw horizontal bar graph
Table 26: Bar Graphs and Special Characters
Syntax
FE 76
254 118
254 ’v’
FE 73
254 115
254 ’s’
FE 6D
254 109
254 ’m’
FE 68
254 104
254 ’h’
FE 4E [c][8 bytes] 254 78
[c][8 bytes] 254 ’N’ [c][8
bytes]
FE 3D [col][length] 254
61 [col][length] 254 ’=’
[col][length]
FE 7C [c][r][d][length ]
254 124 [c][r][d][length]
254 ’|’ [c][r][d][length]
PK202-25
Notes
Initializes the user character set to
make wide vertical bar graphs.
Initializes the user character set to
make narrow vertical bar graphs.
Initializes the character set to make
medium digits.
Initializes the user character set to
make horizontal bar graphs.
Defines one of 8 custom "user" char-
acters. Character number is [c] be-
tween 0x00 and 0x07.
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.
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.
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