LK202-25-FG Matrix Orbital, LK202-25-FG Datasheet - Page 12
LK202-25-FG
Manufacturer Part Number
LK202-25-FG
Description
LCD Character Display Modules Black Background Green Text
Manufacturer
Matrix Orbital
Datasheet
1.LK202-25-GW.pdf
(63 pages)
Specifications of LK202-25-FG
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
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2.1 DB-9 Connector
standard signal levels of ±12V to ±12V. It is also possible to communicate at TTL levels of 0 to +5V by
setting the Protocol Select Jumpers to TTL. As an added feature it is also possible to apply power through
pin 9 of the DB-9 Connector in order to reduce cable clutter. However, in order to accomplish this you must
set the Power Through DB-9 Jumper.
2.1.1 Power Through DB-9 Jumper
Power through DB-9 Jumper pictured in
power through DB-9 option, see table 1 on page 10 for display module voltage requirements.
Matrix Orbital
The LK202-25 provides a DB-9 Connector to readily interface with serial devices which use the EIA232
In order to provide power through pin 9 of the DB-9 Connector you must place a solder jumper on the
1
2
3
4
DB-9 Connector
Power Through DB9 Jumper
GPOs
Manual Override
Figure 14: RS-232 Pin out
figure 15
Figure 13: LK202-25
LK202-25
below. The LK202-25 allows all voltage models to use the
Pin
Pin
Pin
Pin
5
6
7
8
Power / Data Connector
Keypad Interface
Protocol Select Jumpers
Optional Dallas 1-Wire Bridge
9
2
3
5
Tx \ SDA (I
Rx \ SCL (I
GND
PWR
9 Jumper. See table 1 on page 10 for
power requirements.)
(Must solder Power Through DB-
2
2
C clock)
C data)
8
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