transmitters

Sozu Monitoring System Harvests Activity Energy & Runs Without Batteries

Sozu Monitoring System Harvests Activity Energy & Runs Without Batteries

A team of Researchers at Carnegie Mellon University’s Future Interfaces Group have developed self-powered radio tags called Sozu, which enables building-scale activity sensing, without the need for line-of-sight and at a very low cost. They claim a 99 percent detection rate and “almost no false positives.” The team of researchers includes Yang Zhang, Yasha Iravantchi, Haojian Jin, Swarun Kumar, and Chris Harrison. Sozu […]

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Teeny-tiny Bluetooth transmitter runs on less than 1 mw

Teeny-tiny Bluetooth transmitter runs on less than 1 mw

The Bluetooth transmitter chip [lavender, right] is connected to a magnetic monopole antenna [green, far right], which acts as an integral part of the transmitter’s resonator circuit. The left half of the circuit board is only for test purposes. You’re probably swimming in Bluetooth radio signals right now. But none of those are coming from

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