This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

Abstract: A compact-type nondispersive infrared (NDIR) carbon dioxide (CO2) sensor featuring a novel optical sensing cell (OSC) is designed and developed using ray-guided multi-reflector (RGMR) and ...

Abstract: QCM (Quartz Crystal Microbalance) multi-sensors are widely used in biosensors and chemical sensors. The sensing film materials coated on their electrodes will determine the characteristic of ...

Henan Hanwei Electronics Co Company Profile Hanwei Electronics Group Corporation, together with its subsidiaries, provides gas sensors and instruments in China and internationally. It operates through ...