LK202-25-USB-FW Matrix Orbital, LK202-25-USB-FW Datasheet - Page 40

• Manufacturer Part Number: LK202-25-USB-FW
• Description: LCD 20X2 79MM X 17MM COL/WHT USB
• Manufacturer: Matrix Orbital

Specifications of LK202-25-USB-FW

• Display Mode: Transmissive
• Number Of Digits/alpha: 40
• Outline L X W X H: 116.00mm x 37.00mm x 25.73mm
• Viewing Area: 82.20mm L x 18.20mm W
• Display Format: 20 x 2
• Character Size: 5.55mm H x 3.20mm W
• Character Format: 5 x 7 Dots
• Voltage - Supply: 5VDC
• Dot Size: 0.60mm W x 0.65mm H
• Interface: I²C, RS232, TTL
• Operating Temperature: 0°C ~ 50°C
• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 25.73 mm
• Fluid Type: STN
• Voltage Rating: 5 V
• Operating Temperature Range: 0 C to + 50 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Display Type: -
• Backlight: -
• Other names: Q4421337

9.9 Assign Keypad Codes
10 Display Functions
10.1 Introduction
the screen, changing the brightness and contrast or setting timers for turning it on or off. The combination
of these allow you complete software control over your display’s appearance.
10.2 Display On
Matrix Orbital
The LK202-25-USB employs software controlled display settings, which allow for control over, clearing
Description
Remembered
Syntax
Parameters
Description
Remembered
Syntax
Parameters
This command turns auto repeat mode off. See Set Auto Repeat Mode.
No
This command will allow you to reassign the key codes that correspond
to the key presses on the matrix style key pad. The first 25 bytes that are
transmitted will be used for the key down codes and the next 25 bytes
that are transmitted will be used for the key up codes.
Always
Hexadecimal
Decimal
Parameter
KDown
KUp
1
2
3
4
5
Hexadecimal
Decimal
ASCII
Parameter
min
A
K
U
1
F
P
Key Down
G
Q
V
B
L
2
W
M
H
C
R
3
0xFE 0xD5 [KDown] [KUp]
254 213 [KDown] [KUp]
0xFE 0x42 [min]
254 66 [min]
254 “B” [min]
LK202-25-USB
Length
D
N
X
Length
S
4
I
25
25
1
O
Y
E
T
5
J
1
2
3
4
5
Description
Key down codes
Key up codes
Description
Minutes before turning the display
on (0 to 90).
1
k
p
u
a
f
Key Up
2
b
g
q
v
l
m
w
3
h
c
r
4
d
n
x
s
i
5
e
o
y
j
t
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