I2C_LCD Dokumentation
---------------------

For LCD Display 2* 16 Characters, Hd44780 compatible

Almost SW-compatible to EA7123-I2C

Maximum I2C-speed:  50KHz

I2C Address: 0x74

Initialisatzion:                       74 00 2C 0E 06 01
   
Write pointer to line 1 position 0 :   74 00 02

Write data to display :                74 40 <20 characters>

Data stream :
------------   
line 1 : char 00,01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,d01,d02,d03,d04,d05,
line 2 : char 16,17,18,19,20,21,22,23,24,26,26,27,28,29,30,31,d06,d07,d08,d09,d10,
line 3 : char d11,d12,d13,d14,d15,d16,d17,d18,d19,d20,d21,d22,d23,d24,d25,d26,d27

( dxx is dummy character for compatibility, will not be displayed,
  line 3 is dummy line for compatibility, line 3 will never be displayed)

LCD-Character Position:
-----------------------
P32=0;
line 1     00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
line 2     16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

P32=1;
line 1     .. .. 00 01 02 03 04 05 06 07 08 09 10 11 .. ..
line 2     .. .. 16 17 18 19 20 21 22 23 24 25 26 27 .. ..