E-ink project part 3

Posted on August 12, 2020, old forum.

I have reviewed the library of the SPI. Then I found that GOODISPLAY has some exciting modified lib for use. Please refer to the following link. So there are no more issues to use it and we can start to do something more interesting from now.
The below picture is the final demo of my QR code example. I will open-source it in the future.

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