lcd-panel-cgram.rst 1.2 KB

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  1. ======================================
  2. Parallel port LCD/Keypad Panel support
  3. ======================================
  4. Some LCDs allow you to define up to 8 characters, mapped to ASCII
  5. characters 0 to 7. The escape code to define a new character is
  6. '\e[LG' followed by one digit from 0 to 7, representing the character
  7. number, and up to 8 couples of hex digits terminated by a semi-colon
  8. (';'). Each couple of digits represents a line, with 1-bits for each
  9. illuminated pixel with LSB on the right. Lines are numbered from the
  10. top of the character to the bottom. On a 5x7 matrix, only the 5 lower
  11. bits of the 7 first bytes are used for each character. If the string
  12. is incomplete, only complete lines will be redefined. Here are some
  13. examples::
  14. printf "\e[LG0010101050D1F0C04;" => 0 = [enter]
  15. printf "\e[LG1040E1F0000000000;" => 1 = [up]
  16. printf "\e[LG2000000001F0E0400;" => 2 = [down]
  17. printf "\e[LG3040E1F001F0E0400;" => 3 = [up-down]
  18. printf "\e[LG40002060E1E0E0602;" => 4 = [left]
  19. printf "\e[LG500080C0E0F0E0C08;" => 5 = [right]
  20. printf "\e[LG60016051516141400;" => 6 = "IP"
  21. printf "\e[LG00103071F1F070301;" => big speaker
  22. printf "\e[LG00002061E1E060200;" => small speaker
  23. Willy