Independent Applications for use of Gyro, compass, GPS, camera, and Barometer sensors in Field

[AC Question]

Foe example, I want to use these sensors in field work measurements where mobile network is not available

(1) angle of a slope
(2) location of a place, through GPS chips in mobile
(3) tagging gps location in a Photo captured by mobile

 

[Rukbat]

2 and 3 are simple if you don't mind the location being in lat/lon (to get a lat/lon vs. address table, you'll pay more than a few flagship phones are worth unless you can decode one from a set of Pioneer DVDs). For 2, use GPS Status & Toolbox for location to the DOP. For 3, most cameras put that in the EXIF. (Check the Settings for the camera app - it may be turned off by default.)

Angle of a slope is pretty easy -Compass Level.