I'm not certain but it could be used for album art, album description info and for last.fm scrobbling, according to the documentation.
tempo
joined 2 years ago
Have you tried Arduino yet? The website has a lot of good tutorial information. https://www.arduino.cc/en/Guide/HomePage should get you started.
I would like to have a kill switch on the PinePhone. I don't know that the placement under the case is ideal but with ever shrinking phone bezels there is a whole lotta unused real estate on the phone's back side.
I'm just guessing so your scrobbling can be associated with you. I can't think of any other reason right now.