News for hackers. Stuff that matters.

A comment on 4.2″ and 7.5″ NFC-powered e-Paper Displays Work without Battery. Parent comment

Re:4.2″ and 7.5″ NFC-powered e-Paper Displays Work without B... by EvanAnderson on Tuesday March 17, 2020 @03:16PM (#22609018)
I'm talking about radio energy powering the device. 802.1 beacon radio frames, which your access points send out over the air. Configure it via USB, etc, then just hang it on the wall. No cables. Just a passive device.
[ Parent | on HN ]

There are no comments on this comment yet.