How to measure distance between two iphone devices using bluetooth?

user_437722 0
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I'd like to do something in the following using bluetooth.

  1. Measure and display how far my iPhone is from another iPhone.
  2. Display direction of my iPhone.

For example,

I'd like to display something in the following on my iPhone application.

My iPhone is connected to another iPhone:Harry's iPhone.

In this case,

  • Distance : 3m 45.3cm (Accuracy:milimeter)
  • Direction : North East(one of 8 available directions)

Does anyone know how to do this?

bluetooth xcode iphone cocoa-touch
7 Answers

You can't do it against only one Bluetooth device, but you might with 2. Assuming the 2 remote devices are in static location (speakers), and you move your mobile (pun intended) Bluetooth device. You should be able to derive your angle based on speed of distance change from the 2 devices. Only problem is that the solution has 2 values, but that might be doable if you know which side of the plane you're on.

user_13043760
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