[Matéria] New tech enables wireless devices to communicate without battery

Gadgets sem bateria!!!

Indran Singh

New tech enables wireless devices to communicate without battery

Internet-of-things! Researchers, led by an Indian-origin scientist, have developed a new technology that lets wireless devices communicate with each other without relying on batteries or wires for power.

ambient-backscatter-635

The new communication technique, called “ambient backscatter,” takes advantage of the TV and cellular transmissions that already surround us around the clock.

Two devices communicate with each other by reflecting the existing signals to exchange information. The researchers built small, battery-free devices with antennas that can detect, harness and reflect a TV signal, which then is pickedup by other similar devices.

The technology could enable a network of devices and sensors to communicate with no power source or human attention needed.

New tech enables wireless devices to communicate without battery

“We can re-purpose wireless signals that are already around us into both a source of power and a communication medium,” said lead researcher…

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