Matrix-orbital LK204-25 Legacy Manual de usuario Pagina 44
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Parameters
Parameter Length Description
KDown 25 Key down codes
KUp 25 Key up codes
Description This command will allow you to reassign the key codes that correspond
to the key presses on the matrix style key pad. The first 25 bytes that are
transmitted will be used for the key down codes and the next 25 bytes
that are transmitted will be used for the key up codes.
Key Down
1 2 3 4 5
1 A B C D E
2 F G H I J
3 K L M N O
4 P Q R S T
5 U V W X Y
Key Up
1 2 3 4 5
1 a b c d e
2 f g h i j
3 k l m n o
4 p q r s t
5 u v w x y
Remembered Always
10 Display Functions
10.1 Introduction
The LK204-25 employs software controlled display settings, which allow for control over, clearing the
screen, changing the brightness and contrast or setting timers for turning it on or off. The combination of
these allow you complete software control over your display’s appearance.
10.2 Display On
Syntax
Hexadecimal 0xFE 0x42 [min]
Decimal 254 66 [min]
ASCII 254 “B” [min]
Parameters
Parameter Length Description
min 1 Minutes before turning the display
on (0 to 90).
Description This command turns the backlight on after the [minutes] timer has
expired, with a ninety minute maximum timer. A time of 0 specifies that
the backlight should turn on immediately and stay on. When this
command is sent while the remember function is on, the timer will reset
and begin after power up.
Remembered Yes
Default 0
Matrix Orbital LK204-25 40
- LK204-25 1
- Technical Manual 1
- Revision: 2.1 1
- Contents 2
- 1 Getting Started 5
- 1.2 Accessories 6
- Figure 4: Breadboard Cable 7
- Figure 5: Serial Cable 4FT 7
- Figure 7: Aluminum Mountings 7
- Matrix Orbital LK204-25 3 7
- Figure 8: Keypad Mountings 8
- Figure 9: Mounting Kits 8
- Figure 10: 4X4 Keypad 8
- Matrix Orbital LK204-25 4 8
- 1.3 Features 9
- 1.4 Connecting to a PC 9
- 1.5 Installing the Software 10
- 2 Hardware Information 11
- 2.1 DB-9 Connector 12
- 2.2 Power/Data Connector 14
- 2.3 Protocol Select Jumpers 14
- 2.4 General Purpose Outputs 15
- 2.5 Dallas 1-Wire Bridge 16
- 2.6 Manual Override 16
- 3 Troubleshooting 18
- 4 Communications 19
- C Transaction Example 20
- 4.2 Changing the I 21
- C Slave Address 21
- 4.3 Changing the Baud Rate 21
- CrystalSpeed 22
- 8×DesiredBaud 22
- 5.2 Auto Scroll On 24
- 5.3 Auto Scroll Off 25
- 5.4 Clear Screen 25
- 5.6 Set Auto Line Wrap On 26
- 5.7 Set Auto Line Wrap Off 26
- 5.8 Set Cursor Position 26
- 5.9 Go Home 27
- 5.10 Move Cursor Back 27
- 5.11 Move Cursor Forward 27
- 5.12 Underline Cursor On 28
- 5.13 Underline Cursor Off 28
- 5.14 Blinking Block Cursor On 28
- 6 Special Characters 29
- 6.3 Saving Custom Characters 30
- 6.4 Loading Custom Characters 31
- 6.6 Initialize Medium Number 32
- 6.7 Place Medium Numbers 32
- 6.8 Initialize Large Numbers 33
- 6.9 Place Large Number 33
- 7 General Purpose Output 35
- 7.3 General Purpose Output On 36
- 7.4 Set Startup GPO state 36
- 8 Dallas 1-Wire 37
- 8.3 Dallas 1-Wire Transaction 38
- 9 Keypad 39
- C Interface 40
- 9.1.2 RS232 Interface 40
- 9.4 Poll Key Press 41
- 9.5 Clear Key Buffer 41
- 9.6 Set Debounce Time 42
- 9.7 Set Auto Repeat Mode 42
- 9.8 Auto Repeat Mode Off 43
- 9.9 Assign Keypad Codes 43
- 10 Display Functions 44
- 10.3 Display Off 45
- 10.4 Set Brightness 45
- 10.5 Set and Save Brightness 45
- 10.6 Set Contrast 45
- 10.7 Set and Save Contrast 46
- 11 Data Security 47
- 11.3 Data Lock 48
- 12 Miscellaneous 49
- 12.2 Read Version Number 50
- 12.3 Read Module Type 50
- 13 Command Summary 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
- 13.10 Command By Number 56
- 14 Appendix 58
- Matrix Orbital LK204-25 55 59
- 14.3 Physical Layout 60
- 14.4 Ordering Information 61
- 14.5 Definitions 61
- 14.7 Revision History 62
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