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Revisions – Matrix Orbital LK204-25 Legacy User Manual

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4.5.7 Set debounce time (254 85 [time])..........................................................................................19

5. Bar Graphs and Special Characters...................................................................................... 20

5.1 Command List................................................................................................................................... 20

5.1.1 Initialize wide vertical bar graph (254 118)............................................................................ 20
5.1.2 Initialize narrow vertical bar graph (254 115)........................................................................ 20
5.1.3 Draw vertical bar graph (254 61 [column] [height])...............................................................20
5.1.4 Initialize horizontal bar graph (254 104)................................................................................ 20
5.1.5 Draw horizontal bar graph (254 124 [column] [row] [dir] [length]).......................................20
5.1.6 Define custom character (254 78 [c] [8 bytes]).......................................................................20
5.1.7 Initialize large digits (254 110)............................................................................................... 21
5.1.8 Place large digit 254 35 [col] [digit]....................................................................................... 21

6. Miscellaneous Commands..................................................................................................... 23

6.1 Command List................................................................................................................................... 23

6.1.1 Clear display (254 88).............................................................................................................23
6.1.2 Set contrast (254 80 [contrast])............................................................................................... 23
6.1.3 Backlight on (254 66 [minutes])............................................................................................. 23
6.1.4 Backlight off (254 70)............................................................................................................. 23
6.1.5 General purpose output off (254 86 [gpo #]).......................................................................... 23
6.1.6 General purpose output on (254 87 [gpo #])...........................................................................23
6.1.7 Read module type....................................................................................................................24
6.1.8 Read Version Number (254 54).............................................................................................. 24

7. Appendix: Command Summary............................................................................................. 25

7.1 General.............................................................................................................................................. 25
7.2 Issuing Commands.............................................................................................................................25
7.3 On Numbers.......................................................................................................................................25

7.3.1 ASCII Characters.................................................................................................................... 26

7.4 Text Commands.................................................................................................................................26
7.5 Keypad Interface Commands............................................................................................................ 27
7.6 Bar Graphs and Special Characters................................................................................................... 28
7.7 Miscellaneous Commands................................................................................................................. 29

8. Appendix: Specifications and Options.................................................................................. 30

8.1 Specifications.................................................................................................................................... 30
8.2 Options.............................................................................................................................................. 31

9. Appendix: Glossary................................................................................................................ 32

Revisions

1.1 Updated contrast values on display

LK204-25 rev 1

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