Matrix-orbital LK202-25 Legacy Manual de usuario

LK202-25 rev 3 1LK202-25User Manual

LK202-25 rev 3 10If you don't want to modify cable wiring yourself, Matrix Orbital can supply an adapter cable designed touse with the display mo

LK202-25 rev 3 11Each output is wired as shown in Figure 2-8. The + terminal is connected directly to the module positivesupply, the – terminal is con

LK202-25 rev 3 1210 - 100 uF1N4001RelaycoilGPO+-Figure 2-10 Clamping a Relay

LK202-25 rev 3 133. Displaying TextThis chapter describes the various text-display commands in detail. A quick reference summary of all textcommands i

LK202-25 rev 3 14In addition to the built-in characters, users may define up to 8 special characters (which, once defined,occupy positions 0x00 to 0x0

LK202-25 rev 3 153.4.7 Turn on underline cursor (254 74) (R)Turns on the underline cursor. The cursor shows the current text insertion point. Both un

LK202-25 rev 3 164. Keypad InterfaceThis chapter describes the keypad interface and associated commands in detail.4.1 GeneralThe LK202-25 keypad inte

LK202-25 rev 3 174.3 I2C InterfaceThe keypad is read by I²C master read. In short, this means that a read of the module will always return thefirst u

LK202-25 rev 3 18unwanted auto-repeatafter key-up.PollsKey downKey upauto-repeat clockvalid key stroke(before key up)Figure 4-2 Poll timing4.5.2 Auto

LK202-25 rev 3 195. Bar Graphs and Special CharactersThe LK202-25 includes the ability to draw bar graphs (either horizontal or vertical) and allows u

LK202-25 rev 3 2Table of Contents1. Introduction ...

LK202-25 rev 3 20Custom characters occupy a 5 x 8 pixel matrix. Built-in characters are 5 x 7: the bottom row of pixels isnormally reserved for the un

LK202-25 rev 3 216. Miscellaneous CommandsThe commands listed in this chapter don't readily fit in any of the other categories, or are used in mo

LK202-25 rev 3 226.1.5 Backlight on (254 66 [minutes]) (R)This command turns on the backlight for a time of [minutes] minutes. If [minutes] is zero (

LK202-25 rev 3 236.1.11 Read module type (254 55)This command will return, over the RS-232 interface, the model type value of the module. Values forv

LK202-25 rev 3 246.1.15 Read Version Number 254 54)This command will return the firmware version number of the LK202-25.6.2 Flow ControlThe LK202-25

LK202-25 rev 3 257. Appendix: Command Summary7.1 GeneralThe operation of the LK202-25 is controlled by a simple and consistent command set. Commands

LK202-25 rev 3 26Based on the table, the byte 01001011 can be represented in hex as 4B, which is usually written as any of4Bh, 4BH, 4B hex or 0x4B.The

LK202-25 rev 3 27Command Syntax Default NotesSend cursor home FE 48254 72254 'H'This command moves the cursor to the top left ofthe display

LK202-25 rev 3 28Command Syntax Default NotesPoll keypad FE 26254 38254 '&'n/a Returns buffered key presses to application.Returns 0x00

LK202-25 rev 3 297.7 Miscellaneous CommandsNote: The letter "R" in the Default column indicates that this state can be saved to nonvolatile

LK202-25 rev 3 35. Bar Graphs and Special Characters...195.1 Command List..

LK202-25 rev 3 30Command Syntax Default NotesRead Version Number FE 36254 54254 '6'Reads the firmware version number of themodule.Enter flow

LK202-25 rev 3 318. Appendix: Specifications and Options8.1 SpecificationsEnvironmental SpecificationsStandard Temperature Extended TemperatureOperat

LK202-25 rev 3 32Figure 8-1 Physical Layout8.2 OptionsOptions Available on LK202-25Extended Temperature EWide Voltage V

LK202-25 rev 3 339. Appendix: GlossaryASCII American Standard Code for Information Interchange. A 7 bit binary coderepresenting the english alphabet,

LK202-25 rev 3 34LCD Liquid Crystal DisplayModule TypeValueThis refers to the model number of the module.Pixel The smallest individually controllable

LK202-25 rev 3 3510. List of DistributorsNorth AmericaCanadaHVW TechnologiesSuite 473, 300 - 8120 Beddington Blvd. NWCalgary, Alberta, Canada T3K 2A8T

LK202-25 rev 3 36Europe (continued)GermanyElektronikladen Mikrocomputer GmbhOffices throughout GermanyHead Office: Wilhelm - Mellies - STR. 88,D - 327

LK202-25 rev 3 37

LK202-25 rev 3 41. IntroductionYour LK202-25 has the following features:§ 20 column by 2 line text display§ built-in font with provision for up to 8

LK202-25 rev 3 5§ A power cable with a 4 pin connector (same connector as used to connect 3.5 inch floppydrive). Do not connect the LK202-25 to an un

LK202-25 rev 3 6Character Hex value FunctionCR 0x0D Moves cursor to beginning of the current line.LF 0x0A Moves cursor to the beginning of the next (o

LK202-25 rev 3 71.7 To Reset the moduleManual override should only be required in one instance. If for some reason the module is set at a baudrate wh

LK202-25 rev 3 82. Connections2.1 Connector PinoutRefer to the diagram below for this chapter.KeypadConnectorPowerconnectorGeneralPurposeOutputsRS-23

LK202-25 rev 3 92.1.1.1 Five Volt ModulesIf the LK202-25 is used in a PC it is tempting to plug a spare power connector into the unit. Don't dot