Can one be simulated by periodicly syncing with GPS and in the meen while working with the accelerometer? I know for example that the N95 accelerometer is invarient to rotation on the Y axis (while beeing face up/down).
+2
A:
iPhone doesn't have a built in compass; but there is one created in software. It's called Compass Free, and unsurprisingly perhaps, it's free.
different
2008-09-03 22:31:36
+3
A:
The original iPhone and the iPhone 3G use GPS to calculate the heading, however the iPhone 3GS now has a 3-dimensional magnetometer compass in it.
This can only be done taking two GPS coordinates (while moving) and determining the direction from point A to B.
Nick Bedford
2009-10-07 22:30:42
The heading from GPS only indicates what direction the phone is moving and only works if it is moving. It doesn't tell you what direction it is facing like a compass does. But it may be better than nothing if it meets your needs.
progrmr
2009-12-18 02:02:19
Yeah I know. Should have mentioned that.
Nick Bedford
2009-12-22 22:16:56