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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.
@ChristianW
Ah yes, @Gordon thanks for mentioning. But I feared to run short of GPIO pins in this future project... ;-)
And for those who wonder (and asked) - there was an eBay link at the top of that thread already: https://www.ebay.co.uk/itm/122179960272 - looks like the baby version of the Pixl.js display.
The display also has a backlight. It seems to be a bit "whiter" than the one of Pixl.js.
And it runs on 3.3 V - the 5 V rating of the eBay listing probably only refers to the backlight (which runs off a GPIO pin as well in my case).