Missing M5EPD Dependency

[zshivers]

Project did not compile out of the box with PlatfromIO. Needed to add library dependency for M5EPD.

[OyczE]

right ... simple copy https://github.com/m5stack/M5EPD/tree/main/src and we can go.

[zshivers]

Library dependencies in PlatformIO can be specifically called out in the platform.ini file so that it automatically downloads them. This should be added to the repo's platform.ini

[zenz]

lib_deps =
     m5stack/M5EPD @ ^0.1.1

[Gitshaoxiang]

already merged PR to fix the dependency issues