LK204-7T-1U-GW-LV Matrix Orbital, LK204-7T-1U-GW-LV Datasheet

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LK204-7T-1U-GW-LV

Manufacturer Part Number
LK204-7T-1U-GW-LV
Description
LCD DISPLAY 20X4 I2C/RS232/TTL
Manufacturer
Matrix Orbital
Datasheet

Specifications of LK204-7T-1U-GW-LV

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
LK204-7T-1U
Technical Manual
Revision: 1.2

Related parts for LK204-7T-1U-GW-LV

LK204-7T-1U-GW-LV Summary of contents

Page 1

... LK204-7T-1U Technical Manual Revision: 1.2 ...

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... C Transaction Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.1.3 Serial Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.1.4 USB Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2 4.2 Changing the I C Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.3 Changing the Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.4 Setting a Non-Standard Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5 Text 5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5.1.1 Character Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5.1.2 Control Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Auto Scroll Matrix Orbital LK204-7T- ...

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... Set Startup GPO state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 8 Dallas 1-Wire 8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 8.2 Search for a 1-Wire Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 8.3 Dallas 1-Wire Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 9 Keypad 9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 9.2 Auto Transmit Key Presses 9.3 Auto Transmit Key Presses Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 9.4 Poll Key Press . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 9.5 Clear Key Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Matrix Orbital LK204-7T- iii ...

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... Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 12.2 Read Version Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 12.3 Read Module Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 13 Command Summary 13.1 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 13.2 Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 13.3 Special Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 13.4 General Purpose Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 13.5 Dallas 1-Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 13.6 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 13.7 Display Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 13.8 Data Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 13.9 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 13.10Command By Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Matrix Orbital LK204-7T- ...

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... Appendix 14.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 14.1.1 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 14.1.2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 14.2 Optical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 14.3 Physical Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 14.4 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 14.5 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 14.6 Contacting Matrix Orbital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 14.7 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Matrix Orbital LK204-7T- ...

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... Getting Started The LK204-7T- intelligent graphic LCD display designed to decrease development time by providing an instant solution to any project. With the ability to communicate via serial RS-232/TTL and I protocols, the versatile LK204-7T-1U can be used with virtually any controller. Furthermore, the LK204- 7T-1U-USB has the ability to communicate via USB. The ease of use of these displays is further enhanced by an intuitive command structure to allow display settings such as backlight brightness, contrast and baud rate to be software controlled ...

Page 7

... NOTE Matrix Orbital provides all the interface accessories needed to get your display up and running. You will find these accessories and others on our e-commerce website at http://www.matrixorbital.com. To contact a sales associate see Section 14.6 for contact information. Figure 3: Standard Power Matrix Orbital Figure 4: 5V Power Adapter LK204-7T-1U 2 ...

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... Figure 5: 3ft Mini-B USB Cable Figure 7: Communication & Power Cable Matrix Orbital Figure 6: Breadboard Cable Figure 8: Serial Cable LK204-7T-1U 3 ...

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... Multi purpose low power 3.3v GPOs 1.4 Connecting The LK204-7T-1U Non-USB connects seamlessly and excellent means of testing the functionality and uploading new fonts and bitmaps. You will require a standard RS-232 9-pin serial cable such as the one pictured in Figure 8, as well as a modified 5V power adapter such as the one pictured in Figure 4 ...

Page 10

... To install uProject from the Matrix Orbital CD, follow the following steps: 1. Insert the Matrix Orbital CD-ROM into the CD drive 2. Locate the file, uProject.exe, which should be in the "CD-drive:\Download" directory. 3. Copy uProject.exe to a directory that you wish to run it from. Matrix Orbital LK204-7T-1U 5 ...

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... Matrix Or- bital’s support site at http://www.matrixorbital.ca/software/software_alpha/ 2 Hardware Information Refer to the following diagram for this chapter: Matrix Orbital Comport The serial port the display is plugged in to. Baudrate The communication speed the display module is s LK204-7T-1U 6 ...

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... USB cable, talk to a Sales representitive for details. 2.1 Standard Power Cable Connector Power to the LK204-7T-1U can be supplied using the standard Power/Data or USB connetors on the non-USB and USB models respectively, or through the standard power cable connector. This alternate power header allows a standard floppy cable to be inserted and used to provide power to the device. The power requirements for both the non-USB and USB versions of the LK204-7T-1U are shown below ...

Page 13

... The Power/Data Connector provides a standard connector for powering and communicating to the non- USB display module. The LK204-7T-1U requires five volts for the standard display module. The voltage is applied through pins one and four of the four pin Power/Data connector. Pins two and three are reserved for serial transmission, using either the RS-232/TTL or the I by the Protocol Select Jumpers ...

Page 14

... Figure 14: USB Mini-B Connector for LK204-7T-1U-USB 2.3 DB-9 Connector - For Non-USB modules only The LK204-7T-1U provides a DB-9 Connector to readily interface with serial devices which use the EIA232 standard signal levels of ±30V also possible to communicate at TTL levels +5V by Matrix Orbital ...

Page 15

... In order to provide power through pin 9 of the DB-9 Connector you must place a solder jumper on the Power through DB-9 Jumper pictured in Figure 16 below. The LK204-7T-1U allows all voltage models to use the power through DB-9 option, see table 1 for display module voltage requirements. ...

Page 16

... You will have to make a special DB9 cable. WARNING Do not apply voltage through pin 9 of the DB-9 connector AND through the Power/Data Connector at the same time. 2.4 Alternate Communication Headers 2.4.1 Serial Header for Non-USB modules only Matrix Orbital Figure 17: Serial Header LK204-7T-1U 11 ...

Page 17

... If you wish to power it up from a non-USB source, you must remove one of the jumpers. The jumper to remove is the rightmost USB jumper as seen if Figure 20. Matrix Orbital 2 C protocols default for the Non-USB module, the jumpers 2 C address has been changed. Similarly, in order to change the 2 C are present, only 232/TTL/I LK204-7T-1U Pin 1 GND Pin 2 D+ Pin 3 ...

Page 18

... Figure 20: Protocol-Select-Jumpers for LK204-7T-1U USB 2.6 General Purpose Outputs A unique feature of the LK204-7T-1U is the ability to control relays and other external devices using three General Purpose Outputs, which can provide current and +3.3Vdc from the positive side of each GPO. This is limited by a 240 ohm resistor which is located directly above the positive pin as pictured below in Figure [fi ...

Page 19

... Manual Override The Manual Override is provided to allow the LK204-7T- reset to some of the factory defaults. This can be particularly helpful if the display module has been set to an unknown baud rate or I address and you are no longer able to communicate with it. If you wish to return the module to its default settings you must press the bottom left button at power up. Please see fi ...

Page 20

... The last step will be to check the Power / Data Connector on the LK204-7T-1U. If the Power / Data Connector has become loose, or you are unable to resolve the issue, please contact Matrix Orbital see 14 ...

Page 21

... If you are unable to resolve any issue please contact Matrix Orbital. See 14.6 on page 62 for contact information. 4 Communications 4.1 Introduction The commands listed in this chapter describe how to configure data flow on the LK204-7T-1U. 4.1 Communication Summary The LK204-7T-1U is capable of communicating at 100 KHz in I ...

Page 22

... The default read address of the display module will be 0x51, whereas the write address is 0x50 by default. This address may be changed by using cmd 254 / 51 / <address>. The LK204-7T-1U should only be sent addresses that are even (LSB ...

Page 23

... Communication is via a virtual com port, which is created in the operating system by the drivers necessary to install the USB display. The LK204-7T-1U communicating via USB is capable of baud rates of 19,200 bps to 115,200 bps. Other baud rates are subject to the limitation of the virtual com port driver. For further information regarding supported operating systems, and driver limitations please contact technical support ...

Page 24

... C write address of the module between 0x00 2 C write address must be an even number and the read 0xFE 0x39 [speed] 254 57 [speed] 254 “9” [speed] Length Description 1 Hex value corresponding to a baud rate. Baud Rate 1200 2400 4800 9600 19200 28800 38400 57600 115200 LK204-7T- write 19 ...

Page 25

... Length Description 2 Inputed LSB MSB from baud rate formula (12-2047). crystalspeed speed = 1 8 ∗ DesiredBaud speed = 74.07 1 8,000,000 =13,675 Percent Difference: 1.8% 8(73+1) CrystalSpeed ) 8(speed+1) LK204-7T-1U CrystalSpeed 1 to 8×DesiredBaud 8, 000, 000 1 8 ∗ 13, 500 speed = 73.07 Actual Baud Rate: 20 ...

Page 26

... Text 5.1 Introduction The LK204-7T- intelligent display module, designed to reduce the amount of code necessary to begin displaying data. This means that it is able to display all ASCII formated characters and strings that are sent to it, which are defined in the current character set. The display module will begin displaying text at the top left corner of the display area, known as home, and continue to print to the display was a page on a typewriter ...

Page 27

... Control Characters In addition to a full text set, the LK204-7T-1U display supports the following ASCII Control characters: 0x08 Backspace 0x0C Clear screen / New page 0x0D Carriage return 0x0A Line feed / New line 5.2 Auto Scroll On Hexadecimal Syntax Decimal ASCII Description When auto scrolling is on, it causes the display to shift the entire display’ ...

Page 28

... Decimal ASCII Description In order to change the text that is displayed by the LK204-7T-1U when it starts up simply send the command bytes 254 64 followed by the characters that you wish to display, starting from the top left. This command will automatically line wrap the characters that are sent to it. ...

Page 29

... Remembered No Matrix Orbital 0xFE 0x47 [col] [row] 254 71 [col] [row] 254 “G” [col] [row] Length Description 1 Column 1 Row 0xFE 0x48 254 72 254 “H” 0xFE 0x4C 254 76 254 “L” LK204-7T-1U 24 ...

Page 30

... This command will turn the the underline cursor off. Remembered Yes 5.14 Blinking Block Cursor On Hexadecimal Syntax Decimal ASCII Description This command will cause the LK204-7T-1U to display a block cursor at the current text insertion point. Matrix Orbital 0xFE 0x4D 254 77 254 “M” 0xFE 0x4A 254 74 254 “J” ...

Page 31

... Special Characters 6.1 Introduction The LK204-7T-1U has the ability to create four different sets of eight custom characters and save them to internal banks of memory. Each set of eight can be recalled from memory at any time, and selected characters can be written to the display screen. Characters and sets can be created at any time, saved for later use, and displayed to the screen through the intuitive command structure described below ...

Page 32

... Description The LK204-7T-1U allows for upta to eight custom defined characters to be added onto the the character set. A custom character is a five by eight pixel matrix with each row represented by a byte value. For example: Each bit value of one, in the table, represents an on pixel, whereas a value of zero represents a pixel that is turned off. Therefore in order to defi ...

Page 33

... Description New to the LK204-7T-1U has added five non-volatile memory banks for custom character storage. This is intended to allow you to create your own custom bar graphs, medium/large numbers and startup screen. However, each memory bank may be used to store a set of any eight custom characters; with the only provision being that memory bank zero contains the characters that will be used in the startup screen ...

Page 34

... NOTE Medium Numbers must be initialized before this command is executed. Remembered No Matrix Orbital 0xFE 0x6D 254 109 254 “m” 0xFE 0x6F [Row] [Col] [Digit] 254 111 [Row] [Col] [Digit] 254 “o” [Row] [Col] [Digit] Length Description 1 The row number. 1 The column number. 1 Medium number to place (0-9). LK204-7T-1U 29 ...

Page 35

... Horizontal Bar’ command. Remembered No Matrix Orbital 0xFE 0x6E 254 110 254 “n” 0xFE 0x23 [Col] [Digit] 254 35 [Col] [Digit] 254 “#” [Col] [Digit] Length Description 1 The column number. 1 Large number to place (0-9). 0xFE 0x68 254 104 254 “h” LK204-7T-1U 30 ...

Page 36

... Length Description 1 The column number. 1 The row number. 1 The direction of the bar data (0 or 1). 1 The length of the bar data. 0xFE 0x73 254 115 254 “s” LK204-7T-1U 31 ...

Page 37

... General Purpose Output 7.1 Introduction The LK204-7T-1U has 6 General purpose outputs which are connected to 3 tri-colour LEDs. The LEDs consist of red, green and orange-yellow colours. The LEDs are hence software controlled with functions to turn them on/off. A pair of GPOs control one LED. GPO1 and GPO2 control LED1, GPO3 and GPO4 control LED2 and GPO5 and GPO6 control LED3. The tables below illustrate the relation. “ ...

Page 38

... Figure 24: GLK19264-7T-1U LEDs Table 34: LED 1 - top GPO2 GPO1 Yellow 0 0 Green 0 1 Red 1 0 Off 1 1 Table 35: LED 2 - middle GPO4 GPO3 Yellow 0 0 Green 0 1 Red 1 0 Off 1 1 Table 36: LED 3 - bottom GPO6 GPO5 Yellow 0 0 Green 0 1 Red 1 0 Off 1 1 LK204-7T-1U 33 ...

Page 39

... Syntax Decimal ASCII Parameter Parameters Num Description This command turns ON general purpose output [num]. The standard GPO’s on the LK204-7T-1U output 20mA of current at 5V. NOTE ON means the output is pulled LOW. Remembered Yes 7.4 Set Startup GPO state Hexadecimal Syntax Decimal Parameter ...

Page 40

... Dallas 1-Wire 8.1 Introduction Another convenient feature of the LK204-7T-1U is that it provides a Dallas 1-wire interface in order to readily communicate with up to thirty two 1-wire devices on a single bus. 1-wire communication is begun by discovering the address of the device that you wish to communicate with this you must send the “ ...

Page 41

... Length Description 1 Flags to control optional components of the transaction. 1 The number of bits you will be transmitting on the bus. 1 The number of bits you will be reading on the bus. variable Data to be transmitted, LSB to MSB. LK204-7T-1U 36 ...

Page 42

... No 9 Keypad 9.1 Introduction The LK204-7T-1Usupports Key, matrix style, embedded keypad and may be configured to allow key presses to be automatically transmitted via RS-232 or polled through I for auto-repeating key presses. The keypad is scanned whenever a key is pressed;there is no continuous key scan. This means that key presses are dealt with immediately without any appreciable latency. This also prevents electrical noise which is often caused by continuous key scans ...

Page 43

... Remembered Yes Matrix Orbital Table 42: Keypad Values up arrow 0x42 down arrow 0x48 left arrow 0x44 right arrow 0x43 center 0x45 top left 0x41 bottom left 0x47 0xFE 0x41 254 65 254 “A” 0xFE 0x4F 254 79 254 “O” LK204-7T-1U 38 ...

Page 44

... Set Debounce Time Hexadecimal Syntax Decimal ASCII Parameter Parameters time Matrix Orbital 0xFE 0x26 254 38 254 “&” 0xFE 0x45 254 69 254 “E” 0xFE 0x55 [time] 254 85 [time] 254 “U” [time] Length Description 1 Debounce time in increments of 6.554ms (0 - 255). LK204-7T-1U 39 ...

Page 45

... In this mode, when a key is held down, the key code is transmitted immediately and no other codes will be sent until the key is released. On the release of the key, the key release code transmitted will be a value equal to the key down code plus 20 hex. LK204-7T-1U 40 ...

Page 46

... This command turns auto repeat mode off. See Set Auto Repeat Mode. Remembered No 9.9 Assign Keypad Codes Hexadecimal Syntax Decimal Parameters Parameter KDown KUp Matrix Orbital 0xFE 0x60 254 96 254 “‘” 0xFE 0xD5 [KDown] [KUp] 254 213 [KDown] [KUp] Length Description 9 Key down codes 9 Key up codes LK204-7T- the “Key 41 ...

Page 47

... R3 byte 8 R3 byte 9 NOTE * not mapped to a physical key on the attached keypad. Remembered Always 9.10 Keypad Backlight Off Hexadecimal Syntax Decimal Description This command turns the keypad backlight OFF. Remembered Yes 9.11 Set Keypad Brightness Matrix Orbital 0xFE 0x9B 254 155 LK204-7T-1U 42 ...

Page 48

... Display Functions 10.1 Introduction The LK204-7T-1U employs software controlled display settings, which allow for control over, clearing the screen, changing the brightness and contrast or setting timers for turning off. The combination of these allow you complete software control over your display’s appearance. ...

Page 49

... This command sets and saves the display [brightness] as default. Remembered Always Matrix Orbital 0xFE 0x46 254 70 254 “F” 0xFE 0x99 [brightness] 254 153 [brightness] Length Description 1 Display brightness setting (0 to 255). 0xFE 0x98 [brightness] 254 152 [brightness] Length Description 1 Backlight setting (0 to 255). LK204-7T-1U 44 ...

Page 50

... Length Description 1 Red brightness (0 to 255). 1 Green brightness (0 to 255). 1 Blue brightness (0 to 255). 0xFE 0x50 [contrast] 254 80 [contrast] 254 “P” [contrast] Length Description 1 Contrast value (0 to 255). This command has only 32 levels for X-Board based displays, meaning eight LK204-7T-1U 45 ...

Page 51

... Data Security 11.1 Introduction Ensuring that your LK204-7T-1U display’s exactly what you want it to can be the difference between a projects success and failure. This is why we incorporate features such as Data Lock into the LK204-7T-1U With this new feature you now are in control over of how and when settings will be changed so there is no need to worry about the module acting exactly like you expected it to because all the settings may be locked and remembered for the next power up ...

Page 52

... Non-volatile memory has a ‘write limit’ and may only be changed approximately 100,000 times. Remembered No Default Do not remember 11.3 Data Lock Hexadecimal Syntax Decimal Parameters Parameter level Matrix Orbital 0xFE 0xCA 0xF5 0xA0 [level] 254 202 245 160 [level] Length Description 1 Sets the data lock level LK204-7T-1U 47 ...

Page 53

... When this bit is set (1) the module is locked from dis- playing any new informa- tion. (text lock) Hex Dec Binary 0x00 0 0 0x50 80 01010000 Setting and Command Lock 0xFE 0xCB 0xF5 0xA0 [level] 254 203 245 160 [level] LK204-7T- Slave Description Unlock 48 ...

Page 54

... Read Version Number Matrix Orbital Length Description 1 Sets the data lock level 0xFE 0x34 [data] 254 52 [data] 254 “4” [data] Length Description 16 Writes the customer data 0xFE 0x35 254 53 254 “5” LK204-7T-1U 49 ...

Page 55

... This command will return a byte representing the version of the module, see the following table as an example: Remembered No 12.3 Read Module Type Hexadecimal Syntax Decimal ASCII Matrix Orbital 0xFE 0x36 254 54 254 “6” Hex Value Version Number 0x19 Version 1.9 0x57 Version 5.7 0xFE 0x37 254 55 254 “7” LK204-7T-1U 50 ...

Page 56

... LK404-25 74 Unused 78 GLT480282 7A LK204-7T-1U Product ID LCD2021 LCD4021 LK202-25 LK404-55 VFD2041 VK202-25 GLC12232 Unused Unused GLK12232-25 GLK12232-25-SM GLK24064-16-1U GLK12232-16 GLK19264-7T-1U LK204-7T-1U-USB MOS-AV-162A LK162-12 LK202-24-USB LK204-24-USB PK162-12 MOS-AP-162A MOS-AL-162A MOS-AV-202A PK202-24-USB MOS-AL-204 MOS-AL-402 LK082-12 VK404-55 VK402-25 Unused MOI XBoard-I XBoard-U VK202-25-USB VK204-25-USB Unused ...

Page 57

... ASCII 254 “C” Hexadecimal 0xFE 0x44 Decimal 254 68 ASCII 254 “D” Hexadecimal 0xFE 0x47 [col] [row] Decimal 254 71 [col] [row] ASCII 254 “G” [col] [row] Hexadecimal 0xFE 0x48 Decimal 254 72 ASCII 254 “H” LK204-7T-1U Page Page ...

Page 58

... Decimal 254 111 [Row] [Col] [Digit] ASCII 254 “o” [Row] [Col] [Digit] Hexadecimal 0xFE 0x6E Decimal 254 110 ASCII 254 “n” Hexadecimal 0xFE 0x23 [Col] [Digit] Decimal 254 35 [Col] [Digit] ASCII 254 “#” [Col] [Digit] LK204-7T-1U Page Page ...

Page 59

... Hexadecimal 0xFE 0xC3 [Num] [state] Decimal 254 195 [Num] [state] Syntax Hexadecimal 0xFE 0xC8 0x2 Decimal 254 200 2 Hexadecimal 0xFE 0xC8 0x1 [flags] [SndBits] [RcvBits] [Data] Decimal 254 200 1 [flags] [SndBits] [RcvBits] [Data] LK204-7T-1U Page Page Page 35 36 ...

Page 60

... Hexadecimal 0xFE 0x46 Decimal 254 70 ASCII 254 “F” Hexadecimal 0xFE 0x99 [brightness] Decimal 254 153 [brightness] Hexadecimal 0xFE 0x98 [brightness] Decimal 254 152 [brightness] Hexadecimal 0xFE 0x82 [Red] [Green] [Blue] Decimal 254 130 [Red] [Green] [Blue] LK204-7T-1U Page Page ...

Page 61

... Decimal 254 55 ASCII 254 “7” ASCII “#” Place Large Number “&” Poll Key Press 2 “3” Changing the I C Slave Address “4” Write Customer Data “5” Read Customer Data LK204-7T-1U Page 45 46 Page Page ...

Page 62

... Initialize Wide Vertical Bar “|” Place Horizontal Bar Graph “~” Set Auto Repeat Mode Set Backlight Base Colour Set and Save Contrast Set Remember Set and Save Brightness Set Brightness Keypad Backlight Off Set Keypad Brightness LK204-7T- ...

Page 63

... XYZ directions 2 19.6 m/s 2 29.4 m/s 2 490 m/s XYZ directions Table 79: Electrical Specifications Standard +5Vdc ±0.25V 60mA typical 65mA typical add 100 mA (160/165mA) typical add 200mA (260/265mA) typical add 50mA (110/115mA) typical LK204-7T- Extended Temperature ◦ ◦ - +70 C ◦ ◦ ...

Page 64

... LED Backlight Half-Life (GW, WB & TCI Blue) NOTE To prolong life recommended that the backlight be turned off when the display is not in use. 14.3 Physical Layout Matrix Orbital Table 80: Optical Characteristics 20 columns x 4 rows 142 38 29.0 mm 82. 28.40 mm LK204-7T-1U 5 3.9 mm 50,000 hours 20,000 hours 10,000 hours 59 ...

Page 65

... Matrix Orbital Figure 25: Physical Diagram LK204-7T-1U 60 ...

Page 66

... Twenty Character Columns 4: Four Character Rows -7T: Seven Integrated Tactile Keys -1U: Fits a 1U Opening NP: Standard RS232/TTL/I -USB: Universal Serial Bus Only -YG: Grey/Yellow-Green -GW: Grey/White -WB: White/Blue -TCI: Tricolor/Black NP: Standard (4.75-5.25V) -LV: Low Voltage (3.30V) ◦ NP: Standard ( +50 -E: Extended Temperature (-20 Table 82: Part Options LK204-7T- ◦ C) ◦ ◦ + ...

Page 67

... On The Web Sales: http://www.MatrixOrbital.com Support: http://www.MatrixOrbital.ca Forums: http://www.lcdforums.com 14.7 Revision History Revision Number 1.0 1.1 1.2 Matrix Orbital Table 83: Revision History Description Initial Manual Updated Font Set and GPO Image Updated Backlight Life LK204-7T-1U Author Clark Clark Clark 62 ...

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