On Tuesday, an ambitious aerospace engineer from Washington, DC began seeking donations on Indiegogo to create an “open-source drone detection system.”
The Drone Shield would combine a Raspberry Pi, a signal processor, a microphone, and analysis software to scan for specific audio signatures and compare them against what known drones sound like (because obviously a Predator drone is going to sound very different from a small quadcopter.) Once a match is found, the Drone Shield then sends an e-mail or SMS to its owner. As of this writing, the campaign is only closing in on one-tenth of its goal with $301 out $3,500 raised.
John Franklin, the project’s organizer, believes it would cost around $60 to $70 to make one, but he’s hoping to raise funds from other privacy-minded citizens like himself. He notes the idea here is to counter the rising use of drones not only in foreign theaters of war, but also in domestic skies.