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Hardwares to boost phyphox
Hi guys, 
I found this work about use the headphone jack as an external port on smartphone. With a simple circuit they can measure external temperature (through microfone amplitude) and dc voltage (see reference 5) through microfone frequence. 
Next week I will try this circuits with phyphox and post my results here.

Messages In This Thread
Hardwares to boost phyphox - by d.girardi - 03-31-2019, 12:19 AM

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