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kamerat / Epaper-Rain-Graph

Weather precipitation graph using Lilygo T5 2.13" ESP32 E-paper screen
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Support partial updates #3

Open kamerat opened 4 weeks ago

kamerat commented 4 weeks ago

Despite both the display and GxEPD2 supports partial updates, this project does not currently take advantage of this.

Adding partial epaper update would greatly improve the speed and usability of the epaper display making it feel faster and look better.

kamerat commented 5 days ago

Did some testing, and sort of got it to work.. but not quite.

It seems you have to do a full page refresh before the first partial update can run. As the device goes to sleep after the update, it seemed we had to do a full refresh once it wakes up. This drawback essentially makes it more or less the same as just doing full page refresh all the time.

Maybe there's a way to do this without or maybe get the full refresh one time and then it works across sleep states, but for now, I could not get this to work.