Matrix-orbital PK202-24-USB Manual do Utilizador

PK202-24-USBTechnical ManualRevision: 1.0

The display has a secondary power connector used for High Power GPOs. Only if the user is planning onusing GPO 1, GPO 2 and GPO 3 as +12V, should the

8bit, no parity, one stop bit.Speed: 19.2 Kb/sTable 4: USB IDVID 0403PID DescriptionFA00 USB 2 Serial CommunicationFA01 MX2 / MX3/MX6FA02 MX4 / MX5FA0

2.1.5 Serial TTL CommunicationsFigure 6: Rx / Tx and LED HeadersThe display can be communicated to by Serial at TTL levels. Communication will bypass

Figure 7: Connections2.2.1 Advanced General Purpose Outputs & GPO’s 1 to 3These outputs are capable of controlling high current draw devices, savi

WARNINGS• RPM Reading should not be used at 5V.• There are no current limiting resistors.• Maximum current draw is 1000mA.• Default voltage setting is

2.2.3 GPO 4, GPO 5, and GPO 6Figure 10: General Purpose OutputsGPO’s 4, 5, and 6 are low power ouputs providing +5V at 20mA, enforced by current limit

2.4 The Built In Character FontThe display includes a built in 5x8 dot matrix font with the full range of ASCII characters, plus a varietyof extended

2.5 Writing Text to the DisplayWhen the display receives a character, it displays that character at the position currently defined. Thenext character s

2.6.5 Set Cursor Position (254 71 [column][row])This command sets the cursor position (text insertion point) to the [column] and [row] specified. Colum

2.6.12 Cursor Right (254 77)Moves the cursor one position to the right but does not erase any character that may be in that position.Note that this co

ContentsContents ii1 Introduction 11.1 What to Expect From the PK202-24-USB . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 What Not to Exp

Table 6: Keypad LayoutColumns1 2 3 4 5 61 A B C D E FRows 2 G H I J K L3 M N O P Q R4 S T U V W XNOTE The keypad connector must be wired with columns

Figure 14: Poll Timing3.3.2 Auto Repeat Mode Off (254 96)(R)This command turns off the auto repeat mode3.3.3 Auto Transmit Keypresses On (254 65)(R)In

3.3.7 Set Debounce Time (254 85 [time])(R)This command sets the time between key press and key read. All key types with the exception of latchedpiezo

4.1.4 Initialize Horizontal Bar Graph (254 104)This command defines the 8 special / user characters to be blocks suitable for use in drawing horizontal

Table 8: Character Values1 2 3 4 56 7 8 9 1011 12 13 14 1516 17 18 19 2021 22 23 24 2526 27 28 29 3031 32 33 34 3536 37 38 39 40Cursor LineNOTE Custom

4.1.9 Draw Medium Digits (254 111 [row][column][digit])Draws a medium digit in [row] and [column] using the specified [digit]. Medium digits occupy two

Table 10: Continued / Size ByteBit Description7 Continued6543 Packet Size210Table 11: Display Return Protocol TypesDecimal Hex ASCII Description49 0x3

Table 12: Return RPM StructureOffset Size Description0 2 0x232A2 1 0x033 1 0x524 1 Fan #5 2 Fan Period (MSB first)To convert the fan period into an RPM

Table 13: PWM Base FrequenciesIndex Frequency Steps0 0.3 Hz 2561 0.6 Hz 2562 1.2 Hz 2563 2.4 Hz 2564 4.8 Hz 2565 9.6 Hz 2566 19.1 Hz 2567 38.2 Hz 2568

This command will set the PWM frequency for startup. It does not alter the current PWM base frequency.Refer to the “Set PWM base frequency” command fo

3 Keypad Interface 153.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.2 Connections . . . . .

6.3 ROM CommandsThe ROM commands allow a device to be singled out for communication or all devices to be included.This manual only presents the three

Table 15: 1-Wire TransactionOffset(Bytes)Length(Bytes)Name Description0 1 Flags The flags byte controls the optionalcomponents of the transaction.1 1 S

6.4.2 Search command (254 C8 2)This is used to find the addresses of all 1-Wire devices on the bus. After this command the display willreturn one or mo

The example shows the procedure to set “Auto scroll on” as the default condition. Commands are shownin both decimal and hex in the example below;Table

7.1.6 Display off (254 70) (R)This command turns the display off.7.1.7 Load Startup Screen (254 64 [40 characters])This command sets and memorizes the

7.1.9 Set Serial Number (254 52 [byte1][byte2])Modules may be delivered with the serial number blank. In this case the user may set the desired 2 byte

8.3 On NumbersLike all computerized devices, the display operates with commands and values in the form of binarynumbers. These binary numbers are arra

acceptable values are 0 to 6. All such parameters must use numeric values (i.e., actual byte values). If wesend the ASCII number by mistake it will ac

Command Syntax Default NotesUnderline cursor on FE 4A254 74254 “J”offRTurns on the un-derline cursor.Underline cursor off FE 4B254 75254 “K”R Turns of

Command Syntax Default NotesAuto repeat mode on FE 7E [0x00 | 0x01]254 126 [0|1]254 “~”[0|1]offRApplies to keypadonly.0x00 = 200 mstypematic, 0x01 =ke

7 Miscellaneous Commands 287.1 Command List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287.1.1 Remember (254 14

Command Syntax NotesInitialize wide vertical bargraphFE 76254 118254 “V”Initialize the user character set tomake wide vertical bar graphs.Initialize n

8.7 Fan and GPO CommandsTable 31: Fan and GPO CommandsCommand Syntax Default NotesGeneral purpose output off FE 56254 86254 “V”Off This commandturns O

8.8 Miscellaneous CommandsNOTE The letter “R” in the default column indicates that this state can be saved to non-volatile memory with the “Remember”

Command Syntax Default NotesLoad startup screen FE 40 [40 char]254 64 [40 char]254 “@” [40 char]Matrix OrbitalLK202-24-USBLoads new startupscreen (40

Command Syntax Default NotesExit flow control FE 3B254 59254 ’;’Turns off flowcontrol.9 Appendix: Specifications and Options9.1 SpecificationsTable 35: En

Table 37: Optical CharacteristicsNumber of Characters 40 (20 characters by 2 lines)Matrix format 5 x 8 MatrixActive Area 73.45 x 11.4 mm (X x Y)View A

10 Appendix: GlossaryTable 38: Appendix: GlossaryASCII American Standard Code for Information Interchange.A 7 bit binary code representing the English

Font A design for a set of characters. A font is the combina-tion of typeface and other qualities, such as size, pitch,and spacing.Font Metric A defini

Volatile Memory Temporary memory. Once the power supply is turnedoff, volatile memory is then erased.Matrix Orbital PK202-24-USB 44

1 IntroductionThe PK202-24-USB is equipped with the following features;• 20 column by 2 line text PLED display• Built in font with provision for up to

lFigure 1: Connections for TestingNOTE The keypad is not used to directly control any aspect of the operation of thedisplay. The display acts simply a

5. Windows will give a prompt for drivers for a USB ⇔ Serial Device.6. Select “Specify location”, and navigate to the directory the file was uncompress

To experiment, reverse the connector to see if it generates a more logical set of characters. Ultimately theprogram in the controller will have to ’ma

Table 2: Mating ConnectorsConnector Part # Mate Part #3 Pin White Header AMP 173979 AMP 1739773 Pin Red Header MOLEX 43009 MOLEX 787910 Pin Dual Heade