motionSensors.orientation doesn't differentiate between pointing down or up

[dvagala]

When using motionSensors.orientation or motionSensors.absoluteOrientation to get pitch, the value is the same if I move the device down or up. Therefore you cannot differentiate from up and down.

Measurements on ios:

device pointing up: pitch = 0
device pointing a little bit up: pitch = 1
device pointing straight, pitch = 1.57
device pointing a little bit down: pitch = 1
device pointing down: pitch = 1

[dragazo]

I just tried this on Android and it works fine, so this might just be an iOS issue.