Wearable health devices, such as smartwatches, have become commonplace, enabling the continuous monitoring of physiological ...

You can hear sound, of course, but what if you could see it with a laser? That’s what [Goosetopherson] thought about, and thus a new project that you can see in the video below was born. The ...

Abstract: A two-component gas sensor based on Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) and Light-Induced Thermoelastic Spectroscopy (LITES) was realized by the time-division multiplexing ...

Abstract: As the fast development of internet of things (IoT), the demand for gas sensors have increased considerably due to its broad applications in various fields, especially for the wearable ...

This project utilizes an Arduino Uno CH340G development board paired with a DHT11 temperature and humidity sensor to create a compact yet capable environmental monitoring system. It measures ambient ...