Any ideas on building a wifi range finder?


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tobol.7uno7 years ago
I was thinking of something like wifi router transmitting a signal for a microsecond, and then listening for the return, and by using the speed of radio waves and the time until the return divided by 2 we could figure out the distance to the target that the wave bounced off of, but I don't know how to reprogram a wifi transceiver to do this. I have been looking for APIs, but no luck. I don't know if this is what you are trying to do, but I am trying to do it.
mathews7 years ago
Are you looking to use computer WiFi, or an independant WiFi system for use with a PIC?

If the latter, look at ZigBee. It has a built in feature where it can detect the distance between itself and another ZigBee node. By using more nodes you can determine the layout of the nodes.
frollard7 years ago
Step one:  Get a wifi signal strength monitor keychain (~10-20 bucks)
Step two: Disassemble
Step three: Reassemble

You have now made a wifi range finder. 

The parts involved in a wifi tuned chipset would be significantly more complex and expensive to design and build than to just acquire one.
Neg8tyv (author)  frollard7 years ago
thanks
Presumably a wi-fi signal strength meter ?
Neg8tyv (author)  steveastrouk7 years ago
ya...
lemonie7 years ago
A what?

L