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Re: Erasing text on graphic LCD

Posted: Tue Jun 13, 2023 9:59 am
by jandidden
mnfisher wrote:
Tue Jun 13, 2023 9:44 am
It is possible to buffer the display I did it for a demo here viewtopic.php?f=10&t=1569&p=9135&hilit=Cheeting#p9135
However you need to use less bit depth- - I used 2,4 and 8 bit versions to fit in the available memory (on esp32)

You could use a similar technique to buffer part of the display.

Martin
Thanks Martin, I had looked at that some time ago but not sure I'm smart enough to pull it off.
I will look at it again - I learned a lot these last few months ;-)

Jan

Re: Erasing text on graphic LCD

Posted: Tue Jun 13, 2023 10:35 am
by mnfisher
The other thing to try is using the high speed SPI connection. See Ben's post at viewtopic.php?f=3&t=1851&p=10913&hilit= ... ben#p10913

Use the 'Window' command to just redraw the part of the display that has changed.