A foot is a step in the right direction: PI Wireless Charging
And then there’s this. https://www.engadget.com/2017/09/18/pi-can-wirelessly-charge-your-phone-from-a-short-distance/ Simmons: Well a foot is a step in the right direction (though electromagnetic waves weaken exponentially over distance), but my crystal ball says the world craves being able to charge anywhere in their home or office without either plugging in or laying down one’s phone within centimeters or even inches from … Read more