So I fixed the erros I had in the circuit. Added proper GSM antenna and it works! Lights correspond to the signal strength of each reading compared to the reading before. So, blue is min increase, green is a bit more, organge is a bit more. White is constant reading and red is highest. This is taken by phone camera, so it actually turns red when the phone gets close in zoom shots.
More information is blogged at www.dayra.org/dealing-with-rf-data-hear-it-see-it-visiualize-it
source by Elamrawy Moushira