In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

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 ...

BMV080 is a low-power, low-cost PM1, PM2.5, and PM10 sensor module with I2C and SPI interfaces that sells for just $29.90.

Compass, the nation’s largest residential real-estate brokerage, has a pitch for home buyers: Sign with us, and you’ll see homes nobody else can. The company maintains a growing inventory of “Private ...

In February 2020, Compass Coffee’s founders put together a presentation for potential investors in their Washington-based company. The deck laid out the owners’ vision: Michael Haft and Harrison ...

The sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

Compass, Inc. (NYSE: COMP) stock rose on Friday after the company announced the completion of its all-stock merger with Anywhere Real Estate Inc., finalizing a transaction first announced in September ...

The real estate industry has a new giant. Compass and Anywhere have officially merged. The companies announced the close of the $1.6 billion deal Friday morning through filings with the Securities and ...

The mega-merger between Compass and Anywhere Real Estate, the country’s two largest brokerages by deal volume, has closed. Compass announced in September it would pay $1.6 billion in stock to acquire ...

This all-purpose presence sensor is a master at monitoring indoor activity and linking it to smart home features you already use. Tyler has worked on, lived with and tested all types of smart home and ...

Aqara has announced the Spatial Multi-Sensor FP400, a new presence sensor that it says is precise enough to suss out whether you’re sitting, standing, or lying down. The FP400 builds on several past ...

The magnetized needle of a conventional compass wants to align with Earth’s magnetic field—helpful, unless you’re near the poles, where the field tugs straight downward, rendering magnetic compasses ...