Last year, Google finally added an ultrasonic fingerprint sensor (as did OnePlus in the OnePlus 13 this year). This is a pretty big upgrade over the optical sensor found in earlier models, because ...

PID-based one-axis ball balancing robot using Arduino. Uses an ultrasonic sensor and servo motor to stabilize a ball at a target distance. Real-time tuning of Kp, Ki, Kd via Serial. Includes stability ...

Horizontal gas-liquid slug flows are widely encountered in important industrial processes. Bubble velocity measurement is of great significance for understanding the heat/mass transfer and flow ...

This paper introduces a novel method for arm flexion/extension angles measurement using wireless ultrasonic sensor network. The approach uses unscented Kalman filter and D-H kinematical chain model to ...

This is a lightweight C library that helps to interface with ST's VL53L0X time-of-flight distance sensor. It makes it simple to configure the sensor and read range data from it via I²C. I converted ...

Fractional exhaled nitric oxide (FeNO) is widely recognized as a reliable biomarker for asthma. FeNO sensors can help diagnose asthma and monitor its severity. In this study, an ultrasensitive ...