ELK204-7T-1U-YG-PL

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