Check out this link: http://www.eio.com/lcdintro.htm
Lots of LCD info.

Cheers,

Kevin

Craig Lee wrote:
>
> In the Optrex data book:
>
> "CGRAM...which memorize characters that you can freely input by program."
>
> How?
>
> 5x7 characters would require at least 35 bits of information, and the data
> book has no protocol information on how to do this.
>
> Craig