LK202-25-R-VPT Matrix Orbital, LK202-25-R-VPT Datasheet - Page 44

• Manufacturer Part Number: LK202-25-R-VPT
• Description: LCD ALPHA/NUM DISPL 20X2 BK RED
• Manufacturer: Matrix Orbital

Specifications of LK202-25-R-VPT

• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Display Type: -
• Backlight: -

9.8 Auto Repeat Mode Off
9.9 Assign Keypad Codes
Matrix Orbital
Description
Remembered
Examples
Syntax
Description
Remembered
Syntax
Two auto repeat modes are available and are set via the same command:
Resend Key Mode This mode is similar to the action of a keyboard on
Key Up/Down Mode This mode may be used when the typematic
Yes
When the key code associated with key ’P’ (0x50) is pressed, the release
code is ’p’ (0x70). In RS-232 polled mode or via the I
Down / Key Up” codes are used; however, the user should be careful of
timing details. If the poll rate is slower than the simulated auto-repeat it
is possible that polling for a key up code will be delayed long enough
for an unwanted key repeat to be generated.
This command turns auto repeat mode off. See Set Auto Repeat Mode.
No
Hexadecimal
Decimal
ASCII
Hexadecimal
Decimal
• Resend Key Mode: 0x00
• Key Up/Down Mode: 0x01
a PC. In this mode, when a key is held down, the key code is
transmitted immediately followed by a 1/2 second delay. After
this delay, key codes will be sent via the RS-232 interface at a rate
of about 5 codes per second. This mode has no effect if polling or
if using the I
parameters of the “Resend Key Code” mode are unacceptable or
if the unit is being operated in polled mode. The host system
detects the press of a key and simulates an auto repeat inside the
host system until the key release is detected. In this mode, when a
key is held down, the key code is transmitted immediately and no
other codes will be sent until the key is released. On the release of
the key, the key release code transmitted will be a value equal to
the key down code plus 20 hex.
0xFE 0x60
254 96
254 “‘”
0xFE 0xD5 [KDown] [KUp]
254 213 [KDown] [KUp]
2
C interface.
LK202-25
2
C, the “Key
40