Spring showers may bring flowers and sunlit afternoons, but they also bring moisture that creeps into walls, ceilings and ...

This tiny, inexpensive microcontroller makes it easy to build reliable, room-by-room Home Assistant sensors without paying the smart home tax.

Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...

The wSeries wireless transmitters for analog voltage and current, temperature, humidity, and barometric pressure communicate on a standard 802.11 b/g Wi-Fi network. The wSeries wireless transmitters ...

The emerging technology of Wi-Fi sensing promises significant benefits for a variety of embedded and edge systems. Using only the radio signals already generated by Wi-Fi interfaces under normal ...

When implementing a wireless sensor network, most engineers look to ZigBee or other alternatives from CrossBow, Dust Networks, and Z-Wave. Wi-Fi enjoys widespread use, familiarity, and low cost. But ...

After a decade of obscurity, the technology is being used to track people’s movements. Over a decade ago, Neal Patwari lay in a hospital bed, carefully timing his breathing. Around him, 20 wireless ...