This sensor is built for detecting ppm of certain gas molecules, such as VOC, ethanol, ammonia, Hydrogen sulphide, etc. This sensor can't distinguish different gas molecules. Please use the table ...

This project presents a real-time stress detection system using a PPG (Photoplethysmogram) sensor and Arduino UNO R4. The sensor captures pulse data, which is transmitted to a Python program where ...

Defining some of the key functions and recommended applications of these sensors provides a useful comparison to guide the user’s decision as to the optimum output for their flow measurement ...