Have you ever thought about how long a quadcopter a delivery drone could fly from it's batteries? And what about quadcopters that carry equipment or cargo? It seems the battery life is still critical, so it would be great if quadcopter could charge it's batteries somewhere "in the wild" or at least save their capacity by powering up the additional equipment --- of course, during the flight --- wirelessly from electrical lines!
The project idea bases on inductance. Each wire with electric current creates a magnetic field around. The energy spent on this field gets lost! Putting an inductor near the wire allows to take some of this "lost" power wirelessly -- from a magnetic field. Using a simple schema we will demonstrate the potential of by powering up an LED, and even try to charge a quadcopter batteries without touching a wire.