Jinx wrote:
>
> I can't read the chip numbers ;-(( One will be the interface
> IC (HD44780 or similar) the other will be the supplemental
> driver
>
> You can usually easily find the IC pin that a terminal goes
> to with an ohm meter. If you have a data sheet for the IC,
> bingo. Don't count on the header being the same as another
> model - been caught like that. The chances are that it will
> be, but assume nothing. Absolutely essential you identify
> the 0V and supply pins, LCDs hate it backwards

And always power up unknown devices with
a 1k or 560 ohm resistor on the +5v rail.
In most cases it will allow enough current
to run the device, but should prevent any
damage if you connect it wrong. :o)
-Roman

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