phyphox Forums

Phones and tablets have current sense, the ammeter advertises itself as a thermometer, named as pmi-ibat-lvl (0 or 1; battery voltage is pmi-vbat-lvl). You could connect an OTG cable and run a load, though any readings will include system usage also.

(Why do they misuse a standardised *temperature* interface for such things? )

It looks fairly exotic and I could (quickly) only find https://www.reddit.com/r/Mi9T/comments/c...mperature/ (for XIAMI)…

If these sensors are visible in the phyphox “Device Info”, you could build your own experiment to display the data. I have recently done this for TVOC sensors, https://phyphox.org/wiki/index.php/TVOC (requires version 1.2, currently in beta).