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8 votes
7 answers
78k views

How to see compass accuracy and recalibrate the compass in iOS 10?

My compass is often wrong, which leads to all directional modes of maps being wrong (very annoying for back country trail following). In old versions of iOS I remember the 'figure 8' popping up ...
Peter's user avatar
  • 345
6 votes
1 answer
932 views

Can iPhone 6 tell if a surface is horizontal?

I can launch the Compass app on my iPhone 4 and it can tell if the surface I'm placing it on is perfectly horizontal, or it's bending to any direction. Given iPhone 6's sticking-out camera, can it ...
Adam Horvath's user avatar
2 votes
1 answer
178 views

My iPhone says I'm on the wrong side of the world

My compass app is reporting that I am X degrees north, X degrees E, however I am most certainly west of greenwich (Basically I am closer to USA than greenwich). Is this a known bug, I assume that the ...
Jonathan.'s user avatar
  • 4,267
1 vote
1 answer
886 views

Is the iPhone magnetometer sensitive enough to detect solar storms?

Discovered this neat project to pull detailed magnetometer data from iOS: https://github.com/foundry/MagnetoMeter I've been looking at different approaches to setting up a 24/7 magnetometer to ...
crockpotveggies's user avatar