Latest in Bluetooth

Image credit:

Battery-less transmitters pave the way for wireless baby sensors

Share
Tweet
Share
Save

Sponsored Links

The radio waves that saturate the air around us may, or may not, give us headaches and cancer, but we can tell you for certain they're capable of powering tiny wireless chips. Renesas Electronics Corp has created a new ultra-low power wireless transmitter that can push data to both Bluetooth and WiFi receivers without the need for a battery or AC adapter. Instead of the typical tens of milliwatts, the little transmitters require only a few microwatts of power, which can be harvested from environmental radio waves through LC resonance. The creators envision adhesive sensors that send a baby's body temperature to laptops and ads that beam coupons to smartphones over short distances -- you know, the sort of stuff NFC can do, but without the specialized hardware.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Share
Tweet
Share
Save

Popular on Engadget

Engadget's Guide to Privacy

Engadget's Guide to Privacy

View
Amazon rolls out a cash payment option for online orders in the US

Amazon rolls out a cash payment option for online orders in the US

View
Apple will use recycled rare earth metals in the iPhone's Taptic Engine

Apple will use recycled rare earth metals in the iPhone's Taptic Engine

View
Xfinity internet-only customers now get the Flex streaming platform for free

Xfinity internet-only customers now get the Flex streaming platform for free

View
YouTube is bringing a big, ugly ad banner to its TV app's home screen

YouTube is bringing a big, ugly ad banner to its TV app's home screen

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr