EA KIT240-7LWTK ELECTRONIC ASSEMBLY, EA KIT240-7LWTK Datasheet - Page 3

• Manufacturer Part Number: EA KIT240-7LWTK
• Description: LCD Graphic Display Modules & Accessories Blue/White Contrast RS-232 Snap-In Kit
• Manufacturer: ELECTRONIC ASSEMBLY

Specifications of EA KIT240-7LWTK

• Pixel Density: 240 x 128
• Module Size (w X H X T): 144 mm x 104 mm x 39 mm
• Viewing Area (w X H): 114 mm x 64 mm
• Backlighting: LED
• Background Color: Blue, White
• Attached Touch Screen: No
• Product: Graphic LCD Module
• Style: LCD Graphic Display
• Interface: RS-232
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EXTERNAL KEYBOARD
A keyboard (anything from individual keys to a 10x6 matrix keyboard) can
be connected at the plug-in connection. The connected keys are
debounced by means of software. Please note that it is only possible to
connect an external keyboard to versions without an integrated touch
panel.
Each key is switched between an output and an input. Each input has a
100kΩ pullup. Up to 6 keys can be connected at each output.
Transmitting the keystrokes
TOUCH PANEL
Versions EA KIT240-7CTP and -7LEDTP are supplied with an integrated touch panel with 60 fields.
The graphics kit offers convenient commands supporting this touch panel. It is possible, for example,
to group a number of touch fields to form a single large key and then draw and label the key. You can
also assign a record code (1..255) to the key you have defined. If a return code of 0 is assigned, the
key is disabled and has no effect when it is pressed.
When the touch keys are touched, they can be automatically inverted and a tone can sound, indicating
they have been touched. At the same time, the defined return code of the key is transmitted via the
serial interface, or an internal touch macro with the number of the return code is started.
Example:
Definition of a key from field 13 to 25 with the return code 65=´A´ and the text "STOP". Note: Before
individual keys are defined, all fields should be disabled by means of
"ESC T R".
Example
For
com piler
As ASCII
In hex
In decim al
ESC
$1B $54 $48 $0D $19 $41 $02 $53 $54 $4F $50 $00
#TH 13, 25, ´A´, 2, "STOP"
27
Application example
84
T
72
H
(EA KIT240-7CTP AND -7LEDTP ONLY)
13
.
Codes to be output
25
.
65
A
At each keystroke, the associated key
number (1..60) is transmitted. The release
of the key is not transmitted. If the release of
the key is to be transmitted as well, this can
be done by defining touch macro no. 0. The
automatic keyboard scan can be
deactivated by means of the command "ESC T A 0".
The key number can be determined as follows: Key number = (output -
1) * 10 +input (output: a number between 1 and 10; input: a number
between 1 and 6).
Note: If the handshake line (e.g. CTS) does not permit transmission,
keystrokes can be lost.
2
.
83
S
84
T
79
O
80
P
0
.
Note
The end code 0 is not
specified here
The dots ´.´ stand for ASCII
characters that are not to be
displayed
EA KIT240-7
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Symbol
OUT 10
J4 matrix keyboard
OUT 9
OUT 8
OUT 7
OUT 6
OUT 5
OUT 4
OUT 3
OUT 2
OUT 1
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
connection
Output column 10
Output column 9
Output column 8
Output column 7
Output column 6
Output column 5
Output column 4
Output column 3
Output column 2
Output column 1
Input line 1
Input line 2
Input line 3
Input line 4
Input line 5
Input line 6
Function
3