Notes
The LCD is accessible through the /dev/lcd char device (10,156), and
the keypad through /dev/keypad (10,185). Some common LCDs are pre-defined.
Some LCDs allow you to define up to 8 characters, mapped to ASCII
characters 0 to 7. The escape code to define a new character is
'[LG' followed by one digit from 0 to 7, representing the character
number, and up to 8 couples of hex digits terminated by a semi-colon
(';'). Each couple of digits represents a line, with 1-bits for each
illuminated pixel with LSB on the right. Lines are numberred from the
top of the character to the bottom. On a 5x7 matrix, only the 5 lower
bits of the 7 first bytes are used for each character. If the string
is incomplete, only complete lines will be redefined. Here are some
examples :
printf "[LG0010101050D1F0C04;" => 0 = [enter]
printf "[LG1040E1F0000000000;" => 1 = [up]
printf "[LG2000000001F0E0400;" => 2 = [down]
printf "[LG3040E1F001F0E0400;" => 3 = [up-down]
printf "[LG40002060E1E0E0602;" => 4 = [left]
printf "[LG500080C0E0F0E0C08;" => 5 = [right]
printf "[LG60016051516141400;" => 6 = "IP"
printf "[LG00103071F1F070301;" => big speaker
printf "[LG00002061E1E060200;" => small speaker
Willy
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