I’ve been really busy with another projects like CALE Eink calendar but I still think that this one can be a good example for anyone dealing with SPI interfaces and is fun to build so I though about making an upgrade so it is:

• Easier to install using PlatformIO 
• Only one codebase for both ESP8266 and ESP32 (now that I have a bit more experience using #ifdef)
• Add zlib compression to send the image in ESP32 version (will reduce at least 3 times upload time)
• More customizable. Moving all config / SPI and so on into Config and leaving most configuration in a single place

So that’s it. I wish you all a great start of 2020, build cool stuff and learn a lot in the process

Martin Fasani