HomeKit Weekly: The Onvis CS2 turns a simple door sensor into multiple use cases for Apple Home

The Onvis CS2 isn't just a contact sensor. With a 120dB siren, Thread support, and climate tracking, it's a 4-in-1 security ...
IEEE

High-Q Wireless SAW Sensors Based on AlN/Sapphire Bilayer Structure, Operating at 2.45 GHz Range for High-Temperature Applications

Abstract: This letter deals with the potential of the Al/AlN/Sapphire surface acoustic wave (SAW) structure as a wireless sensor operating in the 2.45 GHz ISM band for high-temperature applications up ...
How-To Geek on MSN

Don't buy a Raspberry Pi—these alternatives are cheaper and better

I love the Pi, but it's not always the best tool for the job.
IEEE

Thermal Effect-Aware Wireless Rechargeable Sensor Networks

Abstract: Wireless rechargeable sensor networks (WRSNs) have become an important research topic as they show merit in long-term monitoring operations. Existing techniques focus on improving system ...