OK204-25-OB datasheet, PDF - EEWORLD Datasheet

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OK204-25-OB: DescriptionLCD DISPLAY 20X4 OLED; CategoryLED optoelectronic/LED; File Size3MB，45 Pages; ManufacturerMatrix Orbital; Websitehttps://www.matrixorbital.com

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OK204-25-OB Overview

LCD DISPLAY 20X4 OLED

OK204-25-OB Parametric

Parameter Name	Attribute value
Number of characters	80
display format	20 x 4
Character format	5 x 8 points
display type	OLED
display mode	-
character size	4.75mm high x 2.90mm wide
Overall dimensions L x W x H	98.00mm x 60.00mm x 26.10mm
Visible range	77.00mm length x 25.20mm width
backlight	-
Voltage - Power	4.75 V ~ 5.25 V
point size	0.54mm wide x 0.55mm high
interface	I²C，RS-232，TTL
Operating temperature	-20°C ~ 70°C
text color	blue
background color	black

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OK204-25

Including OK204-25-422, OK204-25-USB.

Technical Manual

Revision 1.2

PCB Revision: 3.0 or Higher

Firmware Revision: 7.3 or Higher

Contents

Revision History ............................................................................................................................................ 1

Contents ........................................................................................................................................................ 2

Introduction .................................................................................................................................................. 4

Quick Connect Guide .................................................................................................................................... 5

Standard Module ...................................................................................................................................... 5

Recommended Parts ............................................................................................................................. 5

Serial Connections................................................................................................................................. 6

C Connections ..................................................................................................................................... 7

USB Module .............................................................................................................................................. 8

Recommended Parts ............................................................................................................................. 8

USB Connections ................................................................................................................................... 9

RS422 Module ......................................................................................................................................... 10

RS422 Connections ............................................................................................................................. 10

Software ...................................................................................................................................................... 11

Hyperterminal ......................................................................................................................................... 11

uProject ................................................................................................................................................... 12

Application Notes.................................................................................................................................... 12

Hardware .................................................................................................................................................... 13

Standard Model ...................................................................................................................................... 13

Communication/Power Header .......................................................................................................... 13

Serial DB9 Connector .......................................................................................................................... 13

Power Through DB9 Jumper ............................................................................................................... 14

Protocol Select Jumpers ...................................................................................................................... 14

USB Model .............................................................................................................................................. 15

Mini USB Connector ............................................................................................................................ 15

Alternate USB Header ......................................................................................................................... 15

Alternate Power Connector ................................................................................................................ 15

RS422 Model ........................................................................................................................................... 16

RS422 Header ...................................................................................................................................... 16

Alternate Power Connector ................................................................................................................ 16

Common Features................................................................................................................................... 17

General Purpose Outputs ................................................................................................................... 17

Dallas One-Wire Connector ................................................................................................................ 17

Keypad Header .................................................................................................................................... 18

Power ...................................................................................................................................................... 19

Display ..................................................................................................................................................... 19

OLED Burn-In ........................................................................................................................................... 19

Communication ....................................................................................................................................... 20

Manual Override ..................................................................................................................................... 20

Commands .................................................................................................................................................. 21

Communications ............................................................................................................................. 21

Text ................................................................................................................................................. 22

Special Characters ........................................................................................................................... 24

General Purpose Output ................................................................................................................. 27

Dallas One-Wire .............................................................................................................................. 28

Keypad............................................................................................................................................. 29

Display Functions ............................................................................................................................ 31

Data Security ................................................................................................................................... 31

Miscellaneous ................................................................................................................................. 32

Appendix ..................................................................................................................................................... 34

Command Summary ............................................................................................................................... 34

Character Sets ......................................................................................................................................... 36

Block Diagram ......................................................................................................................................... 37

Environmental Specifications.................................................................................................................. 37

Electrical Tolerances ............................................................................................................................... 37

Dimensional Drawings ............................................................................................................................ 38

Optical Characteristics ............................................................................................................................ 41

Ordering ...................................................................................................................................................... 41

Part Numbering Scheme ......................................................................................................................... 41

Options .................................................................................................................................................... 41

Accessories .............................................................................................................................................. 42

Definitions ................................................................................................................................................... 44

Contact ........................................................................................................................................................ 44

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