In a youtube video of Andreas Spiess he built a sensor that "monitors its environment and detects all smartphones with enabled WI-Fi functionality, and detects how far away the smartphone is using the signal strength." He can do this by using the Wi-Fi mode promiscuous, which receives all wifi signals, also the signals which are not directed to itself. He uses the arduino module ESP8266. See video ==> #163 Wi-Fi Sniffer as Sensor for Humans - YouTube
So I'm working on a project where a object is launched up to 1 kilometer, and I am going to try tracking certain objects on the ground using the that method above, the only problem is that the range isn't wide enough. Is there any way I would be able to increase the range on the ESP8266, so it's able to reach signals up to 1 kilometer away?
Thanks in Advance,
Martijn van Dongeren