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

The hardware setup shown below includes the Arduino Uno R4, a DHT11 sensor, and the built-in Wi-Fi for email alerts. The DHT11 is connected with VCC to 5V, GND to ground, and the data pin to Digital ...

Raspberry Pi under-cabinet clock shows time and weather; free 3D-print files and a no-API-key weather service, built for glance viewing.

[Nagy Krisztián] had an Intel 286 CPU, only… There was no motherboard to install it in. Perhaps not wanting the processor to be lonely, [Nagy] built a simulated system to bring the chip back to life.

Tired of paying for pricey VPNs? With a Raspberry Pi and a bit of know-how, you can host your own VPN for free. I’ll show you exactly how to do it. I’ve been writing about technology since 2012, ...

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

Changes in temperature, storms, and barometric pressure shifts can trigger migraine episodes for some people. Sensitivity varies widely by person. Hot, humid, or dry conditions may raise migraine risk ...

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...

Raspberry Pi kernel driver for the Onsemi AR0822 — an 8MP rolling shutter 1/1.8" back side illuminated CMOS sensor. 2-lane and 4-lane MIPI CSI-2 (up to 960 Mbps/lane) 10-bit and 12-bit RAW output ...

Abstract: This study presents a reference-free calibration method for wearable core body temperature sensors based on the single-heat-flux approach, eliminating the need for a pre-constructed dataset ...