I have been searching for a project to detect cell phones in the area, no luck so far.
Using a SIM800 or the likes, sniffing for Cell ID, RSSI, MAC, etc...
Want to put 3 in the area spaced 1 km apart. From this I want to determine the location as I will have the Cell ID and the RSSI. With tis information I will be able to use trilateration to calculate the location.
Anyone seen a project like this?