Hi!
I’m using the GDEY0213F51 e-paper display and haven’t found clear information on whether it supports partial refresh, meaning updating only a portion of the screen. In my tests with the GxEPD2 library, partial refresh didn’t work, and I understand that this feature is uncommon in color e-paper displays. Could someone confirm if this display lacks partial refresh capability? Thanks!
Hi there,
Not sure if this will offer any support but I was able to put this together.
HTH
GL 
PJ 
I used the partial and the full screen.
Thank you very much! From what I see in the video, that e-paper display does indeed have partial refresh and excellent speed, but it depends on the controller included with the display. Partial refresh is more common in monochrome screens than in those with multiple colors, like the one I have.
Regards,
Ernesto.
According to this WiKi this device can do partial refresh
Thank you!
When reviewing the code published on the wiki, I noticed it is not the same as the one in the repository and is specifically for the 4-color display. The code in the repository does not include the partial refresh function.
Everything seems to indicate that this ePaper does not support that functionality.
Thankfully,
Ernesto.