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.

A team of engineers at Rice University has developed a tiny new sensor that could dramatically improve the safety of self-driving cars on public roads. This is a compact, low-power millimeter-wave ...

Abstract: This paper presents a newly designed piezoelectric thin film polyvinylidene fluoride (PVDF) sensor that is able to measure short-circuit force directly in a short-circuit test. The sensor, ...

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 ...

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

There are many different trouble codes that can be set in the system when there’s an issue with an oxygen sensor. One such example is the P0133 code. What does it mean and how does it differ from ...

The Federal Circuit upheld an administrative tribunal’s decision to nix six claims from a DexCom Inc. patent covering implantable sensors used to monitor patients’ blood glucose levels. DexCom sued ...

With the release of watchOS 11.6.1 and companion iOS 18.6.1, Apple managed to restore blood oxygen readings for U.S. owners of Apple Watch Series 9, Series 10, and Ultra 2. The method is slightly less ...

Apple released a small build update to iOS 26 developer beta 6, which does not re-enable the blood oxygen sensor on Apple Watch in spite of the earlier iOS 18.6.1 update that did. The new iOS 26 ...