Let the wifi charge your phone

Brian Barrett writing for Wired about charging your phone by connecting to wifi:

The system comprises just two components; an access point (a router), and custom-built sensors. โ€œThe goal of the sensors is to harvest RF (radio frequency) power and convert it into DC power,โ€ explains Vamsi Talla, a researcher on the project. โ€œThe second piece, the access point, there we actually developed a custom solution on it, just a software modification that would enable the access point to act both as a good power delivery source and, simultaneously, also as a good Wi-Fi router.โ€ In other words, it achieves power over Wi-Fi in a way that both works with pre-existing hardware, and doesnโ€™t interfere with your Internet connection one bit.

Lots of unknowns here, but a future where we wirelessly charge our mobile devices is coming, and not necessarily contained to charging surfaces either.

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