JUCE doesn’t provide functionality to access pretty well every sensor. You can see this here where someone took the matter into their own hands: Accelerometer/gyroscope support for iOS and Android - #9 by aamf !
For the rest - audio, MIDI, camera, input, permissions, and networking - you would use JUCE’s provided APIs. WRT “settings”, I’m not sure what you mean by that specifically as any settings are typically controlled via permissions.