Monochrome eInk Display flickers like a candle

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Kirkmen
 
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Monochrome eInk Display flickers like a candle

Post by Kirkmen »

Hello forum!
I have the Adafruit 200x200 eInk display with SSD1681 to get readings. I use the ThinkInk library for this.
Once the .display() method is called, the display flickers a lot.
Is it possible to control the display in such a way that it is partially updated without flickering?
I would like to thank you in advance for the answer.
Greetings Marius

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mikeysklar
 
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Re: Monochrome eInk Display flickers like a candle

Post by mikeysklar »

eInk screens flicker. That is part of the deal with these displays.

There is a Thinkink_partial example sketch which help minimize update impact.

https://github.com/adafruit/Adafruit_EP ... artial.ino

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Kirkmen
 
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Re: Monochrome eInk Display flickers like a candle

Post by Kirkmen »

I know that's part of the deal, but apparently you also know that partial updating should be possible, which prevents the flickering.
I'm not completely screwed, which is why I'm familiar with the example sketches, but I'll formulate my question more precisely.

Can someone explain to me why the partial update code does not work with the Adafruit eInk 200x200 1.54" SSD1681 display?

I found a forum post where someone implemented a working example on the ESP32.
https://github.com/digamesystems/esp32_ ... ial_update

However, I need to do this on an atmega32u4 and with this example I get a memory overflow of 234% when compiling.

I'm a bit at a loss, the simplest will probably be the Waveshare alternative, advertised with a 0.3s partial refresh time.
That's the deal ;)

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