Washed out display after refresh

lmarzen / esp32-weather-epd

A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.

GNU General Public License v3.0

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Washed out display after refresh #95

Closed TheMeanCanEHdian closed 2 months ago

TheMeanCanEHdian commented 2 months ago

Today I noticed a new problem where the display is washed out and splotchy over a certain vertical threshold. I was wondering if you had any thoughts on what might be causing this outside of a hardware issue. Below are an image showing the issue and a video showing the refresh process (after a reset).

The display looks sharp while refreshing, so I am not sure what might be the issue.

20240416_115508

https://github.com/lmarzen/esp32-weather-epd/assets/16025103/c0df2252-cd29-479f-b8dc-800b93110626

TheMeanCanEHdian commented 2 months ago

I also tried the following with no change:

Reseating the display cables and connectors
Removing and reconnecting the battery
Powering with USB and battery connected
Powering with only USB connected

lmarzen commented 2 months ago

What driver board are you using (Waveshare Rev2.2/2.3 or DESPI-CO2)? Make sure the switch(es) on the driver board are set as specified in the README.

TheMeanCanEHdian commented 2 months ago

The switch was set as specified (when I move it to the other position it is way worse) but when I moved it back it now seems good? Perhaps the switch was slightly loose. It's all locked in my enclosure so not sure what would have happened but it's looking good!

Perhaps this will help someone in the future. Thanks!

lmarzen commented 2 months ago

Interesting. Thanks for responding with your fix. I didn't even think that the switch might not be all the way set in position.