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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Wilberforce
It uses an spi interface, the data sheet is here
https://www.waveshare.com/w/upload/d/d8/2.7inch-e-paper-b-specification.pdf
This lists the commands - there might be a similar display in the modules currently supported - or you could try to write a specific module for this board.