Igor,
No, I'm not talking about screen refresh. When I run the example program (from the cookbook), the displays shows as it does in the writeup regarding the program. However, the screen gets brighter and dimmer about once a second or so. I thought maybe the screen color was getting written to with different data, but that doesn't appear to be happening.
The program doesn't show a "RESET" command (Function), so I added one, but that doesn't make any difference. I suppose I could have a bad display, but I doubt that is the case either. I can take a movie of the action if you want to see what I'm talking about. I would really like to find out what the problem is and how I can take care of it. The display looks rather good and I have a use for it, but if I can't get it to stay stable, it isn't going to be much good anyway.
I'll take a short movie this weekend, and I'll post it to my website, and I'll leave a link here so it can be accessed.
Thanks all,
Regards,
Jim
All, I got the display working using the example program. All works well except that the contrast changes about once a second.
I have looked at the program and it appears as though this is set in the initialization of the display (range 0..63 and is set at 39).
Does anyone know why the contrast changes? Does anyone know how to make it stop changing? Please advise.
Thanks and Regards, Jim