PK202-25 Matrix Orbital, PK202-25 Datasheet - Page 39

• 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

the GPO ON and OFF commands use a number to indicate which GPO is being controlled. We’re told
that acceptable values are 1 to 6. All such parameters must use numeric values (i.e., the actual byte
values). If we send the ASCII number 0 by mistake it will actually give the value 48 decimal (30 hex) to the
parameter, which is wrong.
8.4 Text Commands
Matrix Orbital
This gives rise to the possibility of confusion when parameters are being set on the display. For example,
In the tables given in the following sections ASCII characters are shown as ‘A’, with single quotes.
Syntax in the tables below are given in hex, decimal, and decimal with ASCII.
Command
Auto line wrap on
Auto line wrap off
Auto scroll on
Auto scroll off
The number
The number
The letter
The letter
FE 43
FE 44
FE 51
FE 52
Syntax
254 67
254 ’C’
254 68
254 ’D’
254 81
254 ’Q’
254 82
254 ’R’
Table 21: Example of an ASCII Table
A
A
0
9
Table 22: Text Commands
has a value of
has a value of
has a value of
has a value of
PK202-25
65 Decimal or
97 Decimal or
48 Decimal or
57 Decimal or
Default
On
R
On
R
Off
R
Off
R
41 Hex
61 Hex
30 Hex
39 Hex
Notes
Enables
wrapping
word wrap).
Disables
wrapping.
Enables scroll at
bottom of screen.
Text will push
display up one
line to make room
for new line.
Disables
scroll. Text will
wrap to top left
and
existing text
overwrite
auto
(not
line
line
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