VK204-25-422 Matrix Orbital, VK204-25-422 Datasheet
VK204-25-422
Specifications of VK204-25-422
Related parts for VK204-25-422
VK204-25-422 Summary of contents
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... LK204-25/VK204-25 Including LK204-25-422, LK204-25-USB, VK204-25-422, and VK204-25-USB Technical Manual Revision 1.3 PCB Revision: 3.0 or Higher Firmware Revision: 7.0 or Higher ...
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Revision History Revision 1.3 1.2 1.1 Grammatical and Ease of Reading Enhancements 1.0 0.3 0.2 0.1 Description Added Power Directions for the RS422 Model Added Command Summary Addition Initial Release Combined LK and VK Manuals Style Changes to Text and ...
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Contents Revision History ............................................................................................................................................ 2 Contents ........................................................................................................................................................ 3 Introduction .................................................................................................................................................. 5 Quick Connect Guide .................................................................................................................................... 6 Standard Module ...................................................................................................................................... 6 Recommended Parts ............................................................................................................................. 6 Serial Connections ................................................................................................................................. Connections ..................................................................................................................................... 8 USB Module .............................................................................................................................................. 9 Recommended Parts ...
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General Purpose Outputs ................................................................................................................... 18 Dallas One-Wire Connector ................................................................................................................ 18 Keypad Header .................................................................................................................................... 19 Troubleshooting .......................................................................................................................................... 20 Power ...................................................................................................................................................... 20 Display ..................................................................................................................................................... 20 Communication ....................................................................................................................................... 21 Manual Override ..................................................................................................................................... 21 Commands .................................................................................................................................................. 22 1. Communications ............................................................................................................................. 22 2. Text ................................................................................................................................................. ...
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... User input is available through a five by five matrix style keypad, and six general purpose outputs provide simple switchable five volt sources. In addition, a Dallas One-Wire header provides a convenient communication interface for up to thirty-two devices. The versatile LVK204-25, with all the features mentioned above, is available in a variety of colour, voltage, and temperature options to suit almost any application. 5 ...
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... Quick Connect Guide Standard Module Figure 3: Standard Connections The standard version of the LVK204-25 allows for user configuration of three common communication protocols. First, the unit can communicate using serial protocol at either RS323 or TTL voltage levels. Second, it can communicate using the Inter-Integrated Circuit ...
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... Serial Connections The serial interface provides a classic connection to the LVK204-25. The Communication/Power Cable is most commonly used for this set provides connections for DB9 serial and floppy power cables. To place your board in serial mode, adhere to the steps laid out below. 1. Set the Protocol Select Jumpers. ...
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... A more advanced connection to the LVK204-25 is provided by the I accomplished using a breadboard and the Breadboard Cable. Power must be supplied from your breadboard or another external source. To dive right into your application and use the LVK204- mode, get started with the guidelines below. 1. Set the Protocol Select switches. ...
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... USB Module Figure 6: USB Connections The LVK204-25-USB offers a single USB protocol for easy connection to a host computer. The simple and widely available protocol can be accessed using the on board mini B style USB connector as outlined in the USB Connections section. Recommended Parts The External Mini USB cable is recommended for the LVK204-25-USB display ...
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... USB Connections The USB connection is the quickest, easiest solution for PC development. After driver installation, the LVK204-25-USB will be accessible through a virtual serial port, providing the same result as a serial setup without the cable hassle. To connect to your LVK204-25-USB, please follow the steps below. ...
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... The LVK204-25-422 provides a robust RS422 interface to the display line. For this interface, a series of six wires are usually screwed into the RS422 terminal block provided. An alternate header is also available to provide local power to a regular or -V unit. To connect to your LVK204-25-422, follow the steps below. ...
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... A number of control characters are also activated. Commands are merely values prefixed with a special command byte, 254 in decimal. While many software programs are available to communicate with the LVK204-25, a number of more common samples are detailed in depth below. 8 Backspace ...
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... The Matrix Orbital alphanumeric display tuner, or uProject, is offered as a free download from the www.matrixorbital.ca support site. It allows the basic functionality of any simple graphical user interface system. While basic functionality can be tested using the GUI portion of the program, more advanced users will enjoy the scripting capability found in the uploader tab ...
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... Serial DB9 Connector Figure 12: Serial DB9 Connector The LVK204-25 provides a DB-9 Connector to readily interface with serial devices using EIA232 standard signal levels also possible to communicate at TTL levels +5V by setting the Protocol Select Jumpers to TTL added feature it is also possible to apply power through pin 9 of the DB-9 Connector in order to reduce cable clutter ...
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... In order to provide power through pin 9 of the DB-9 Connector you must connect the Power Through DB-9 Jumper labelled R17, as illustrated below. This connection can be made using a zero ohm resistor, recommended size 0603 solder bridge. The LVK204-25 allows all voltage models to use the power through DB-9 option, see the electrical specifications in Table 40 for voltage requirements. ...
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... Alternate Power Connector Figure 15: Alternate Power Connector The Alternate Power Connector provides the ability to power the LVK204-25-USB using a second cable. The Tyco 171825-4 style header is particularly useful for connecting to an unmodified floppy power cable from a PC power supply for a simple bench power solution. ...
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... RS422 Header Figure 16: RS422 Header The six pin RS422 interface header of the LVK204-25-422 offers power and ground connections as well as two differential pair communication lines. Regular and inverted lines are provided for both receive and transmit signals. Power is supplied locally to the regular or –V variants while the –VPT can receive power over a distance ...
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... Dallas One-Wire Connector Figure 19: Dallas One-Wire Connector In addition to the six general purpose outputs the LVK204-25 offers an Optional Dallas One-Wire bridge, to allow for an additional thirty two one-wire devices to be connected to the display. This header can be populated with a Tyco 173979 connector at an added cost by custom order only. Please use the Contact section to request for more information from the Matrix Orbital sales team ...
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... Keypad Header Figure 20: Keypad Header To facilitate user input, the LVK204-25 provides a Keypad Interface Connector which allows a matrix style keypad twenty-five keys to be directly connected to the display module. Key presses are generated when a short is detected between a row and a column. When a key press is generated, a character specific to that key press is automatically sent on the Tx communication line. If the display module is running in I² ...
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... Manual Override section to reset to default. • Make sure that the start screen is not blank 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. ...
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... In serial protocol, ensure that the host system and display module are both communicating on the same baud rate. The default baud rate for the display module is 19200 bps. • Match Rx from the LVK204-25 to the transmitting pin from your host and the Tx pin to the receiving pin. • ...
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Commands 1. Communications 1.1. Changing the I2C Dec Slave Address Hex ASCII Immediately changes the I2C write address. Only even values are permitted as the next odd address will become the read address. Default is 80. Address 1 byte, even ...
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Text 2.1. Auto Scroll Dec 254 81 On Hex FE 51 ■ Q ASCII The entire contents of screen are shifted up one line when the end of the screen is reached. Default is on. 2.2. Auto Scroll Dec ...
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Set Cursor Dec 254 71 Position Hex FE 47 ■ G ASCII Sets the cursor to a specific position where the next transmitted character is printed. Column 1 byte, value between 1 and 20 Row 1 byte, value between ...
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Blinking Block Dec 254 83 Cursor On Hex FE 53 ASCII Displays a blinking block over the current cursor position. Can be used with underline. 2.14. Blinking Block Dec 254 84 Cursor Off Hex FE 54 ASCII Removes blinking ...
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Special Characters 3.1. Creating a Custom Dec Character Hex ASCII Creates a custom character. Each character is divided into 8 rows of 5 pixels; each data byte represents one row. Each byte is padded by three zero bits followed ...
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Save Start Up Screen Dec Custom Characters Hex Saves a custom character to memory for the start up screen or repeated use. Start up characters are displayed by sending their ID to the screen byte, value between ...
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Initialize Dec 254 104 Horizontal Bar Hex ASCII Loads the horizontal bar graph custom character bank into memory. Horizontal bar characters must be initialized before a graph is displayed. 3.10. Place Horizontal Dec Bar Graph Hex Places a horizontal ...
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General Purpose Output 4.1. General Purpose Dec Output Off Hex ASCII Turns the specified GPO off, sinking current to an output of zero volts. Number 1 byte, GPO to be turned off, value between 1 and 6 4.2. General ...
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Dallas One-Wire 5.1. Search for a One-Wire Dec Device Hex Sends a search query to each of the devices on the one wire bus. Any connected device will respond with an identification packet. Response 14 bytes, ...
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Keypad 6.1. Auto Transmit Dec 254 65 Key Presses On Hex ASCII Key presses are automatically sent to the host when received by the display. Default is Auto Transmit on. 6.2. Auto Transmit Dec Key Presses Off Hex ASCII ...
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Set Auto Repeat Dec 254 126 Mode Hex Sets key press repeat mode to typematic or hold. In typematic mode if a key press is held, the key value is transmitted immediately, then 5 times a second after a ...
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Display Functions 7.1. Display On Dec 254 66 Hex FE 42 ■ B ASCII Turns the display backlight on for a specified length of time inverse display color is used this command will essentially turn on the ...
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Set VFD Dec 254 89 Brightness** Hex FE 59 ASCII Immediately sets the text brightness. Default is 0. Brightness 1 byte, brightness level from 3(Dim) to 0(Bright) 7.8. Set and Save VFD Dec 254 145 Brightness** Hex Immediately sets ...
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Data Security 8.1. Set Remember Dec 254 147 Hex FE 93 Allows changes to specific settings to be saved to the display memory. Writing to non-volatile memory can be slow and each change consumes 1 write of approximately 100,000 ...
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... Read Module Dec 254 55 Type Hex FE 37 ■ 7 ASCII Causes display to respond with its module number. Response 1 byte, module number, see partial list below Data Data Data Table 27: Sample Module Type Responses 9 LK204-25 15 VK204-25 87 LK204-25-USB 88 VK204-25-USB 89 LK204-25-422 90 VK204-25-422 36 ...
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Appendix Command Summary Available commands below include identifying number, required parameters, the returned response and an indication of whether the setting is remembered always, never, or with remember set to on. Name Changing the I2C Slave Address Changing the Baud ...
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Table 31: General Purpose Output Command Summary Name General Purpose Output Off General Purpose Output On Set Start Up GPO State Name Search for a One-Wire Device 200, 2 Dallas One-Wire Transaction 200, 1 Name Auto Transmit Key Presses On ...
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Character Sets 39 Figure 21: LCD Model European Character Set ...
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Figure 22: VFD Model Japanese Character Set 40 ...
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Environmental Specifications Operating Temperature Storage Temperature Operating Relative Humidity Thermal Shock Electrical Tolerances Current Consumption Board 40mA Input Voltage Specifications Standard* 4.75-5.25V *Note: Standard and Wide Voltage variants of the RS422 model should be powered from a local source only. ...
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... Dimensional Drawings Figure 23: LCD Dimensional Drawing Figure 24: LVK204-25 Dimensional Drawing 42 ...
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... Figure 25: LVK204-25-USB Dimensional Drawing Figure 26: LVK204-25-422 Dimensional Drawing ...
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Ordering Part Numbering Scheme Options # Designator 1 Product Type 2 Display Size 3 Keypad Size 4 Colour 5 Voltage 6 Protocol 7 Temperature *Note: The RS422 model should only be powered from a local source, unless the –VPT variant ...
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Accessories Power PCS Communication CSS4FT EXTMUSB3FT INTMUSB3FT SCCPC5V BBC 45 Table 44: Power Accessories Standard Power Cable Table 45: Communication Accessories 4 ft. Serial Cable Mini-USB Cable Internal Mini-USB Cable Serial Communication/5V Power Cable Breadboard Cable ...
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Peripherals KPP4x4 KPP204A-XX* Temperature Probe Mounting B2041-XX** B204A-XX* MK2041-XX** Note*: Keyed overlays are available in Black Vinyl (-BK) and Beige Vinyl (no part extension). Note**: Non-keyed overlays are available in Black Vinyl (-BK), Black Brushed Aluminum (-BL), Silver Brushed Aluminum ...
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... Bits per second, a measure of transmission speed. DOW: Dallas One-Wire protocol, similar to I wire carries data, while two others supply power and ground. Matrix Orbital tests non-parasitic devices only, those that do not draw power from the data line; however, some parasitic devices may work. ...