Modern RC cars can be pretty darn fast. That’s fun and all, but it also makes it easy to crash them into things. This problem ...

The CrowPi3 is available in nine configurations on the Kickstarter webpage. The Early Birds offer the most value for money ...

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 ...

A system that uses a PID controller to balance a ball on a tiltable platform. The system is built with an Arduino, ultrasonic sensor, and servo motor, with PID gain tuning via potentiometers. The ...

Faint booms from space help track incoming debris. But the path matters more than you think. Earth gains a little mass each ...

Best Phones with Ultrasonic Fingerprint Sensors (July 2025) in India Last Updated: Tuesday, July 01, 2025, 06:00 [IST] हिन्दी में पढ़े ...

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 ...

In this letter, we proposed an ultrasonic sensor-based resolution tunable displacement measurement system by using an extension spring. In the proposed method, a linear extension spring is vertically ...

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 ...