I created an open-source Blockclock clone, you can build it

₿TClock (BTClock with custom font - Antonio SemiBold) NOTE: C++ is not a language I'm experienced in. The quality of the code is probably bad and makes experienced C++ developers cry. For me it works, I do hope people will help making the code better through pull requests. V2 of the code, to be used with a custom made PCB. What you need to build this is: 7x 2.13 b/w eInk screens (the b/w/r don't have fast partial refresh, it should work but it's really slow). MCU (For this project you need an ESP32 with 4 MB Flash) ESP32 S2 (like the Wemos S2 mini) does not have enough RAM, only the ESP32 an

https://github.com/dsbaars/btclock