Range finding in Bluetooth

[dev99]

Anyone know how to estimate the distance to a bluetooth device from a server?.....

[Xoder]

That depends on a whole lot of things. First you have to know the power class of your device (and the other one). Classes and ranges follow:

Class        Range

  1      100 m
  2      10 m
  3	2-3 m

These are all approximations, and will vary in real life. Most devices are Class 2, although many PDAs are class 3 and some industrial devices and USB dongles are class 1.

Then use the inverse-square rule using the nigh-useless power meter provided by your Bluetooth driver.

That's my best guess. HTH.

Originally Posted by dev99

Anyone know how to estimate the distance to a bluetooth device from a server?.....