Hi,

> I've got a 16x2 module made by Powertip which also has 16 pins.  Two of
> these are not used.  Looking at it from the front, they are numbered as
> follows:
>     o  o  o  o  o  o  o  o  o  o  o  o  o  o  o  o
>     14 13 12 11 10 9  8  7  6  5  4  3  2  1  16 15

This one is 16x1 and it's pins are numbered like this:



o (pins for backlit)
o

  16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
   o   o   o   o  o  o    o o o o o o o o o o

Evgeni