Hi I am looking to build a circuit or to hack an existing device that can sense an incoming call or an out going call from a mobile device, from
I was able to use normal gadget that blink when an incoming call is registered. The problem is that they don't work well with 3G phones like the Nokia
Thanks
Hi I don't want to listen to the conversation, I am building an art installation that talks about communication over mobile devices as a cultural phenomena As people use mobile devices around the art piece they activate it So any help will be appreciated
1: find out what frequencies the mobile devices operate on, (I think 3G is 2.4GHz) 2: build (or purchase) recieverrs for those frequencies. 3: adjuste the sensitivity of the receivers (or antennas) to detect only nearby devices.
Bye. Jasen
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