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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.
@Gordon
There actually is some code in Espruino now that will handle line fonts, which gives you really nice rotation and scaling behaviour at smaller font sizes - although honestly it only really makes sense for buffered 16 bit screens since then you get nice antialiasing (and neither Bangle.js 1 or 2 have that).
It also really requires a custom-made font as well - even Hershey is a bit more complex than required, so it's of limited use. It's really only in there right now because a customer is using it in their devices.