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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
The sound quality is much better with an 8kHz file and playback. Definitely seems to be a sweet spot for it
... and the DAC does work fine, it's just not very powerful so you need to put it into something that'll amplify it