This Arduino library provides a simple C++ class for ultrasonic distance sensors (SRF04, SRF05, HC-SR04). It supports measuring distances in centimeters or inches, object detection within a threshold, ...

This project uses an HC-SR04 ultrasonic sensor to measure how close an object is. A buzzer and LED react depending on the distance, similar to a car parking sensor. < 10 cm → buzzer and LED stay on.

Without any delays, here are the best Phones with Ultrasonic Fingerprint Sensors (October 2025) that make the cut: ...

Abstract: This letter presents a real-time bed-exit alarm system using ultrasonic sensors, infrared (IR) sensors, and an accelerometer. The ultrasonic sensors detect the elderly in bed; the IR sensors ...

As robots increasingly enter human spaces, robotics companies will need to think about safety differently than they did when robots were largely siloed from their human counterparts. Sonair thinks its ...

Abstract: In modern architecture, the glass wall has become a widely used element. Two-dimensional lidar is one of many sensors used in robots, but it cannot directly identify the glass wall due to ...

Metal Frameworks and Structural Elements in Robotics Every robot you’ve ever seen, whether it’s one zipping around ...

Crude GPU design showed random glitches whenever the system attempted memory writes iNapGPU struggled with environmental noise from simple USB cables A 12MHz counter overclocked to 20MHz caused ...