[wireless]

<img alt="" height="1" width="1" />
WiFi Backscatter: The Internet of Things Could Talk by Turning Reflective
IEEE Spectrum
Limited computing in batteryless devices has generally been possible using harvested radio-frequency power from ambient TV, radio, cellphone, and Wi-Fi signalsâ??and in the case of RFID chips, from the occasional jolt supplied by a nearby RFID reader.





Courtesy of WestNet City Wi-Fi
www.westnet.ca