18. March 2016 · Comments Off on Not-so-smart home: Amazon Echo ‘can be hacked by radio words’ · Categories: News · Tags: , , , ,

Amazon’s voice activated home automation gadget can mistake radio and TV programme for human commands- as some owners found out recently while listening to a US talkshow.To activate Echo, users need to ask the ‘assistant’ Alexa to perform a task, from playing their favourite song to dimming the lights- provided they have the correct smart home appliances to do so of course.

Source: Not-so-smart home: Amazon Echo ‘can be hacked by radio words’ | Netimperative – latest digital marketing news

13. January 2016 · Comments Off on These Zigbee home automation devices need no batteries or wires · Categories: News · Tags: , , , ,

You’re probably most familiar with piezoelectricity as the generator of the spark that lights the gas stove, but it’s finding a new application in Las Vegas this week: lighting up the living room.Energy-harvesting controls for home automation have been a thing since at least 2001, when Siemens set up a new company, EnOcean, to commercialize the piezo-powered wireless light switches it had developed. Pushing on the rocker switches generated just enough piezoelectrical energy to broadcast a 128-bit “telegram” to radio modules inside light fixtures, electrical outlets or control hubs.

Source: These Zigbee home automation devices need no batteries or wires | ITworld

18. December 2015 · Comments Off on Scientists build world’s tiniest thermometer using radio waves · Categories: News · Tags: , , , ,

Researchers in the Netherlands have developed a tiny wireless temperature sensor powered by radio waves. The technology, still in its infancy, could one day power smart homes.The sensor can detect temperature, but could be designed to sense a range of external variables. For example, sensors employed in smart homes could detect the presence of a person in the room and automatically switch on or off air condition and heat.

Source: Scientists build world’s tiniest thermometer using radio waves – UPI.com

11. December 2015 · Comments Off on Tiny chip that powers itself from radio waves · Categories: News · Tags: , , , ,

Dutch scientists have developed a tiny sensor powered by the radio waves it uses to communicate information.Such sensors could help advance the nascent Internet of Things industry, researchers at Eindhoven University of Technology said.Increasingly tiny chips that measure temperature, light, and air pollution are being deployed around cities and in smart homes and offices.One the biggest hurdles is to make these sensors battery-free.

Source: Tiny chip that powers itself from radio waves – BBC News

09. December 2015 · Comments Off on Battery-free IoT sensor feeds off radio waves  · Categories: News · Tags: , ,

Dutch researchers have invented an internet-of-things sensor that powers itself from router radio waves.The first sample chip measures just 2mm square, weighs 1.6 milligrams and measures temperature. It draws power from a Wi-Fi router via a tiny antenna, takes a reading, and then broadcasts it back, using a slightly different frequency to give the temperature figure.

Source: Battery-free IoT sensor feeds off radio waves • The Register