EGLK19264A-7T-USB-FGW-PL

USB Enclosure Series Including ELK204-7T-USB-MT, ELK204-7T -USB-PL, EGLK19264A-7T -USB-MT, and EGLK19264A-7T -USB-PL Technical Datasheet Revision 1.1 Revision History Revision 1.1 1.0 0.2 0.1 Date March 5, 2014 April 27, 2012 April 26, 2012 April 17, 2012 Description Correction to Current Draw of Backlights Initial Release Henry Changes Initial Concept Author Martino Clark Clark Clark Contents Introduction .................................................................................................................................................. 1 Hardware ...................................................................................................................................................... 2 Drawing ..................................................................................................................................................... 2 Features .................................................................................................................................................... 4 USB Connector ...................................................................................................................................... 4 LED Indicators ....................................................................................................................................... 4 Keypad Input ......................................................................................................................................... 4 Manual Override ................................................................................................................................... 4 Commands ............................................................................................................................................ 4 Quick Connect ............................................................................................................................................... 5 USB Connections ....................................................................................................................................... 5 Troubleshooting ............................................................................................................................................ 5 Display ....................................................................................................................................................... 5 Communication ......................................................................................................................................... 5 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 USB communication speeds of up to 115.2kbps 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 built-in USB cable provides a multi-platform 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-1U-MT Figure 2: ELK204-7T-1U-PL 1 Hardware Drawing Metal Enclosure (-MT) Figure 3: -MT Drawing 2 Plastic Enclosure (-PL) Figure 4: -PL Drawing 3 Features USB Connector The Enclosure Series comes with a familiar USB Connector to fulfill both communication and power needs. The standard A-style connector can be mated to any device with a USB-A header. Most commonly used with a PC, this connection creates a virtual com port that offers a simple power solution with a familiar communication scheme. Table 1: USB Pinout Figure 5: USB Connector Pin 1 2 3 5 Function Vcc DD+ Gnd 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 2: LED Output Figure 6: LED Location Colour Yellow Green Red Off 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 7: Key Down Values Figure 8: Key Up Values Manual Override The Manual Override is provided to allow the Enclosure Series to be temporarily reset to factory defaults. 1. Disconnect power from your display. 2. Hold down the bottom left button. 3. Reconnect power to your unit, and wait for the start screen before releasing the button. 4. Set and save all pertinent settings. Parameter Backlight Contrast Baud Rate Value 255 128 19200 Table 3: 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. 4 Quick Connect USB Connections The USB connection provides a quick, easy solution for PC development. After driver installation, the Enclosure Series will be accessible through a virtual serial port. 1. Make the connections.  Plug the regular, A-style USB header into your computer USB jack. 2. Install the drivers. a. Download the latest drivers at www.matrixorbital.ca/drivers, and save them to a known location. b. When prompted, install the USB bus controller driver automatically c. If asked, continue anyway, even though the driver is not signed d. When the driver install is complete, your display will turn on, but communication will not yet be possible. e. At the second driver prompt, install the serial port driver automatically f. Again, if asked, continue anyway 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. 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 your device drivers are installed correctly. In the device manager you should see a USB Serial Port object in the USB controllers section as well as an entry in the Ports section. 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. • • • • 5 Try using a different USB port or utilize a USB hub. Ensure that the host system and display module are both communicating on the same baud rate. The default rate for the display module is 19200 bps. 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 9: Communication Diagram 6 Environmental Table 4: 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 5: Voltage Specifications ELK204-7T-1U Min Typical Max 4.75V 5.00V 5.25V EGLK19264A-7T-1U Min Typical Max 4.75V 5.00V 5.25V EGLK19264A-7T-VPT Min Typical Max 9.0V 12.0V 35.0V Table 6: 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 7: 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) 7 142.00 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 10: Viewing Angle Definition Ordering Part Numbering Scheme Table 8: Part Numbering Scheme ELK 1 -204 2 -7T 3 -1U 4 -TCI 5 6 -MT 7 Options Table 9: Display Options # Designator 1 Product Type 2 Display Size 3 4 Keypad Size Form Factor 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 -1U: Fits a 1U Opening -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