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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.
@hygy
I found this on some sites:
var concentration = 1.1*Math.pow(pm10lowratio,3)-3.8*Math.pow(pm10lowratio,2)+520*pm10lowratio+0.62; // using spec sheet curve
but this calculates pcs/0.01cf how can I calculate it to ug/m3?