Serial Enclosure Series

Serial Enclosure Series
Serial Enclosure Series
Including ELK204-7T-MT, ELK204-7T-PL,
EGLK19264A-7T-MT, and EGLK19264A-7T-PL
Technical Datasheet
Revision 1.2
Revision History
Revision
1.2
1.1
1.0
0.2
0.1
Date
March 5, 2014
October 7, 2013
November 29, 2012
April 26, 2012
April 17, 2012
Description
Correction to Current Draw of Backlights
Added 6pin Header
Initial Release
Henry Changes
Initial Concept
Author
Martino
Clark
Clark
Clark
Clark
Contents
Introduction .................................................................................................................................................. 1
Hardware ...................................................................................................................................................... 2
Drawing ..................................................................................................................................................... 2
Features .................................................................................................................................................... 4
Communication/Power Connector (ELK204-7T) ................................................................................... 4
Extended Communication/Power Connector (EGLK19264A-7T) .......................................................... 4
LED Indicators ....................................................................................................................................... 4
Keypad Input ......................................................................................................................................... 4
Manual Override ................................................................................................................................... 4
Commands ............................................................................................................................................ 5
Quick Connect ............................................................................................................................................... 5
Serial Connections..................................................................................................................................... 5
I2C Connections ......................................................................................................................................... 5
Troubleshooting ............................................................................................................................................ 6
Display ....................................................................................................................................................... 6
Communication ......................................................................................................................................... 6
Specifications ................................................................................................................................................ 6
Block Diagram ........................................................................................................................................... 6
Environmental ........................................................................................................................................... 7
Electrical .................................................................................................................................................... 7
Optical ....................................................................................................................................................... 7
Ordering ........................................................................................................................................................ 8
Part Numbering Scheme ........................................................................................................................... 8
Options ...................................................................................................................................................... 8
Contact .......................................................................................................................................................... 8
Introduction
The Enclosure Series is complete display solution designed to decrease development time by integrating
simple input, output, and display interfaces into a robust external enclosure. With serial communication
speeds of up to 115.2kbps, I2C up to 100kbps, and a convenient rear mounting point, the Enclosure
Series provides the perfect interface solution for any project.
The simple command structure permits easy software control of many settings including backlight
brightness, screen contrast, and baud rate. User input on is available through a built-in, backlit seven
key tactile keypad. Three bi-colour LEDs provide visual outputs on each model, a buzzer on the GLK
model provides audio feedback, and the terminal block provides a flexible interface.
For the LK model, on board memory provides up to forty custom characters which can be saved within
the unit and recalled for start screens, bar graphs or larger numbers. And the GLK provides a whopping
256KB for customizable fonts and bitmaps to enhance the graphical user experience.
The versatile Enclosure Series, with all the features mentioned above, is available in a variety of colour
and material options to suit almost any application.
Figure 1: ELK204-7T-MT
Figure 2: EGLK19264A-7T-PL
1
Hardware
Drawing
Metal Enclosure (-MT)
Figure 3: -MT Drawing
2
Plastic Enclosure (-PL)
Figure 4: -PL Drawing
3
Features
Communication/Power Connector (ELK204-7T)
The ELK Series comes with a simple four pin TE
282834-4 style terminal block to fulfill both
communication and power needs. Voltage is
applied through pins one and four while pins two
and three are reserved for serial or I2C transmission.
This versatile header can be connected to a variety
of cables for a simple interface to any host.
Table 1: Com/Power Pinout
Pin
1
2
3
4
Figure 5: Com/Power
Connector
Function
Gnd
Tx (SDA)
Rx (SCL)
Vcc
Extended Communication/Power Connector (EGLK19264A-7T)
The EGLK Series comes with a simple six pin
TE 282834-6 style terminal block to fulfill both
communication and power needs. Voltage is
applied through pins one and four while pins
two and three are reserved for serial or I2C
transmission. Pins five and six can be used for
optional hardware flow control using a serial
protocol only.
Table 2: E C/P Pinout
Pin
Function
1
2
3
4
5
6
RTS
CTS
Gnd
Tx (SDA)
Rx (SCL)
Vcc
Figure 6: Ext C/P Connector
LED Indicators
The Enclosure Series has 6 General Purpose
Outputs which control 3 bi-colour LEDs. Red,
green, and orange-yellow colours can be
created using these software controlled GPOs.
Odd numbered GPOs control red while even
numbers switch the green aspects of the LEDs,
as shown in the table to the right.
Table 3: LED Output
Colour
Yellow
Green
Red
Off
Figure 7: LED Location
GPOO
0
0
1
1
GPOE
0
1
0
1
Keypad Input
The Enclosure Series includes a 7 key,
matrix style, embedded keypad and may
be configured to allow key presses to be
automatically transmitted or polled. The
keypad can also be configured for
typematic or auto-repeating key presses.
The keypad is scanned only when pressed
to reduce electrical noise and decrease
latency to ensure key input is received
quickly and correctly every time.
Figure 8: Key Down Values
Figure 9: Key Up Values
Manual Override
The Manual Override is
provided to allow the Enclosure
Series to be temporarily reset
to factory defaults.
4
1. Disconnect power from your display.
2. Hold down the bottom left button.
3. Reconnect power and wait for the start
screen before releasing the button.
4. Set and save all pertinent settings.
Parameter Value
Backlight
255
Contrast
128
Baud Rate 19200
Table 4: Manual
Override Settings
Commands
An extensive list of commands and additional display information* can be found in the LK204-7T-1U and
GLK19264A-7T-1U display manuals at www.matrixorbital.ca/manuals.
Quick Connect
Serial Connections
The serial interface provides a classic connection for RS232 or TTL development.
1. Set the Protocol Select jumpers.
 RS232: Connect the three jumpers** in the 232 protocol box with the zero ohm jumper
resistors provided or an alternate wire or solder solution.

TTL: Connect the two jumpers** in the TTL protocol box.
2. Make the connections.
 Disassemble the enclosure by removing four Phillips screws at the corners of the case.
 Locate the green Communication/Power terminal block, and insert cable wires**, up to 17
AWG solid or 18 AWG stranded, using the Com/Power Pinout.

Tighten the M1.6 screws of the terminal block to secure the wires and assemble the enclosure.
3. Create.
 Use uProject or a terminal program to get started, and then move on with your own
development. A number of application notes are available at www.matrixorbital.ca/appnotes.
I2C Connections
A more advanced connection for micro-controller applications is provided by the I2C interface.
1. Set the Protocol Select switches.
 I2C: Ensure that the two I2C jumpers** in the corresponding protocol box are connected.
1. Make the connections.
 Disassemble the enclosure by removing four Phillips screws at the corners of the case.
 Locate the green Communication/Power terminal block, and insert cable wires***, up to 17
AWG solid or 18 AWG stranded, using the Com/Power Pinout.

Tighten the M1.6 screws of the terminal block to secure the wires and assemble the enclosure.
2. Create.
 This time you're on your own. While there are many examples within the Matrix Orbital
AppNote section, www.matrixorbital.ca/appnotes, too many controllers and languages exist to
cover them all. If you get stuck in development, it is possible to switch over to another protocol
on the standard board, and fellow developers are always on our forums for additional support.
*Note: Internal headers other than the Comm/Power Connector are not available for the Enclosure Series.
**Note: Jumpers must be removed from all protocol boxes save for the one in use.
***Note: Matrix Orbital can design a custom cable for your enclosure, please contact sales for information.
5
Troubleshooting
Display
If your display is powered successfully, the Matrix Orbital logo, or user created screen should display on
start up. If this is not the case, check out these tips.
•
•
•
Check that power to your device is wired correctly using the Com/Power Pinout.
Ensure the contrast is not too high or too low and that the backlight is on. See the Manual
Override section to reset these values to default.
It is possible to overwrite the Matrix Orbital logo start screen, if this happens the screen may be
blank. Try writing to the display to ensure it is functional, after checking the contrast above.
Communication
When communication of either text or commands is interrupted, try the steps below.
•
•
•
•
Check that the communication lines are wired correctly using the Com/Power Pinout.
Ensure that the host system and display module are both communicating on the same serial
baud rate or I2C address. The defaults are 19200bps and 0x50 respectively.
Unlock the display. See the Set and Save Data Lock command for more info.
Finally, the display can be reset to defaults using the Manual Override procedure above.
Specifications
Block Diagram
Figure 10: Communication Diagram
6
Environmental
Table 5: Environmental Specifications
Operating Temperature
Storage Temperature
Operating Relative Humidity
0°C to +50°C
-10°C to +60°C
Maximum 90% non-condensing
Electrical
Table 6: Voltage Specifications
ELK204-7T
Min Typical Max
4.75V 5.00V 5.25V
EGLK19264A-7T
Min Typical Max
4.75V 5.00V 5.25V
EGLK19264A-7T-VPT
Min Typical Max
9.0V
12.0V 35.0V
Table 7: Current Consumption
Daughter Board
Typical
60mA
Daughter Board
Typical
165mA
Daughter Board
Typical
165mA
+
YG
100mA
+
YG
50mA
+
YG
50mA
Backlight
GW & WB
50mA
Backlight
FGW & WB
45mA
Backlight
FGW & WB
45mA
TCI
200mA
+
TCI
65mA
+
TCI
65mA
+
GPOs
Max
20mA each
GPOs
Max
20mA each
GPOs
Max
20mA each
Optical
Table 8: Optical Characteristics
Module Size
Viewing Area (-MT)
Viewing Area (-PL)
Character Size (LK)
Character Pitch (LK)
Pixel Size (GLK)
Pixel Pitch (GLK)
Viewing Direction
Viewing Angle
Contrast Ratio
Backlight Half-Life (YG)
Backlight Half-Life (GW & WB)
Backlight Half-Life (TCI)
142.00 x
38.00 x 36.0
82.0 x 28.0
82.5 x 28.9
3.20 x 5.15
3.90 x 6.15
0..36 x 0..36
0..39 x 0.39
12
-30 to +30
3
50,000
20,000
10,000
θb
mm
mm
mm
mm
mm
mm
mm
O’clock
°
θf
θl
φ= 180°
θr
φ= 90°
φ= 270°
φ= 0°
Hours
Hours
Hours
Figure 11: Viewing Angle Definition
7
Ordering
Part Numbering Scheme
Table 9: Part Numbering Scheme
ELK
1
-204
2
-7T
3
4
-TCI
5
6
-MT
7
Options
Table 10: Display Options
#
Designator
1
Product Type
2
Display Size
3
Keypad Size
4
Protocol
5
Colour
6
Voltage
7
Enclosure Type
Options
ELK: External Liquid Crystal Display with Keypad Input
EGLK: External Graphic Liquid Crystal Display with Keypad Input
-204: 20 Character Columns by 4 Rows
-19264A: 192 Pixel Columns by 64 Rows
-7T: Seven Integrated Tactile Keys
*NP: Standard Model
-USB: USB Only Model
-YG: Grey Text with Yellow-Green Background
-GW: Grey Text with White Background
-WB: White Text with Blue Background
-TCI: Tricolour Text with Black Background
*NP: Standard Voltage
**-VPT: Wide Voltage with Efficient Switching Power Supply
-MT: Metal Enclosure
-PL: Plastic Enclosure
*Note: NP means No Populate; skip this designator in the part number and move to the next option.
**Note: The –VPT voltage option is only available for the -19264A display size.
Contact
Sales
Support
Online
Phone: 403.229.2737
Phone: 403.204.3750
Purchasing: www.matrixorbital.com
Email: sales@matrixorbital.ca Email: support@matrixorbital.ca Support: www.matrixorbital.ca
8
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Matrix Orbital:
ELK204-7T-WB-MT ELK204-7T-GW-MT ELK204-7T-YG-MT ELK204-7T-TCI-MT
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising