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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.
@MaBe
The device is using a serial interface for communicatin. As there is no Espruino module available I suggest to find some driver in js or c and port them to work with Espruino.
This looks like a promising c source to convert to javascript:
https://github.com/jedp/AQI-HPMA115-STM32