PK202-25 Matrix Orbital, PK202-25 Datasheet - Page 41

• 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

8.5 Keypad Interface Commands
Matrix Orbital
Command
Auto repeat mode on
Auto repeat mode off
Auto transmit key presses
on
Auto transmit key presses
off
Clear key buffer
Poll keypad
Set debounce time
Table 24: Keypad Interface Commands
FE 7E [0x00|0x01] 254
FE 60
FE 45
FE 55 [time]
Syntax
126 [0|1]
254 ’~’ [0|1]
254 96
254 ’‘’
FE 41
254 65
254 ’A’
FE 4F
254 79
254 ’O’
254 69
254 ’E’
FE 26
254 38
254 ’&’
254 85 [time]
254 ’U’ [time]
PK202-25
Default
Off
R
Off
R
On
R
Off
R
N/A
N/A
52ms
R
Notes
Applies to key-
pad
= 200 ms type-
matic,0x01
key down/key up
codes sent.
Applies to keypad
only.
Sets auto transmit
mode for keypad.
Key presses are
transmitted
host
polling.
Up to 10 key
presses buffered
until polled.
Clear unread key
presses.
Returns buffered
key presses to ap-
plication. Returns
0x00 if no key
presses. High or-
der bit set unless
this is the last /
only key press.
Resolution: 1 =
0.6554 ms [time]
is a numeric mul-
tiplier.
only.0x00
without
to
=
37