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martinberlin / eink-calendar

A very easy, almost zero-configuration, ESP8266/ESP32 E-ink calendar. Caution: UNMAINTAINED Please use CalEPD / Cale-idf
http://cale.es
MIT License
103 stars 9 forks source link

0/9 Try out sending grayscale for Dalian good display #6

Closed martinberlin closed 3 years ago

martinberlin commented 4 years ago

Check firstly e-paper grayscale codes. And then fork GxEPD to add it. For some reason he is not doing it and it would be much nicer to see pictures on 4 levels grayscale than dithered.

Dalian example codes: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html

Example but for Waveshare 1.54: https://github.com/ZinggJM/GxEPD/blob/3b8cbafd8b01baa2f5ab6bae5ec213ce767cb5cb/src/GxGDEW0154Z04/GxGDEW0154Z04.cpp#L225

martinberlin commented 4 years ago

On hold. The question is if it would make sense to implement grayscale first or colors. Not all displays support grayscales so we have to give it a second thought. If someone will like to help on the research: More than welcome @IotPanic or any other interested. Just labeled this as good first issue

martinberlin commented 3 years ago

This will be addressed by our own component: https://github.com/martinberlin/cale-idf