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.

I think it’s pretty crazy that it’s 2026 and we still have no way to measure farts,” Hall said. “One in five people say they ...

The sendEmail () function is responsible for triggering the email alert when an object is detected. A secure Wi-Fi client is ...

Abstract: Following this paper, the design, implementation, and evaluation of an intelligent optical gas leakage detection system based on machine learning and an Arduino platform to enhance the ...

Ammonia (NH 3)—the second-most-produced chemical globally—has proven to be highly important in furthering human civilization over the centuries, both in terms of technological capabilities and ...

1 Physics Laboratory 1, Department of Physics and Applied Sciences, Faculty of Science, National Pedagogical University, Kinshasa, Democratic Republic of Congo. 2 English Department, Teachers Training ...

Air pollutants like nitrogen dioxide (NO 2), primarily produced during fossil fuel combustion, pose a serious concern for human health, contributing to respiratory diseases like pulmonary edema, ...

Israeli scientists have developed a gas sensor that can distinguish “mirror image” molecules in the air, a breakthrough with the potential to revolutionize medical diagnostics, food and beverage ...

In my professional life I have used many different gas analyzers for confined space entry as well as emergency response. These units are very expensive and require the user to be able to read the ...