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An RFID tag is modified by cutting out a small part its antenna (silver ribbon) and placing a small light-sensing phototransistor or temperature-responsive resistor (thermistor) on it. CREDIT University of Waterloo

Batteryless smart device closer to reality

Researchers at the University of Waterloo have taken a step forward toward a new generation of smart devices that don't require batteries or charging....
MIT researchers are developing RFID stickers that sense their environment, enabling low-cost monitoring of chemicals and other signals in the environment. Image: Chelsea Turner, MIT

MIT engineers configure RFID tags to work as sensors

Using RFID, many retailers and manufacturers track their products. They also use radio-frequency identification tags that come in the form of paper-based labels outfitted with a...
Drones Relay RFID Signals for Inventory Control

Drones Relay RFID Signals for Inventory Control

Radio frequency ID tags generally transform supply chain management. They enable warehouse manager to log stock significantly more productively. But because of modern retail operations, these...
New RFID Protocols For Hack-Proofing Devices

New RFID Protocols For Hack-Proofing Devices

Scientists have developed Radio-Frequency Identification (RFID) technology to prevent side channel attacks. It works by an electromagnetic field to discover and record the tags that...