Sonair built its 3D ultrasonic sensor with robotic safety in mind

The company's sensor uses sonar and echos to give robots more information about their surrounding environment.
GitHub

sparkfun/SparkFun_BMV080_Arduino_Library

Arduino Library for the SparkFun Air Quality PM1/PM2.5/PM10 Sensor - BMV080 The SparkFun Air Quality PM1/PM2.5/PM10 Sensor - BMV080 (Qwiic)is an ultra-small, fan-less air quality sensor for sensing ...
IEEE

A Sensitive Sensor With a Quartz Matching Layer: For Simultaneous Detection of Ultrasonic and Electromagnetic Wave Signals by Partial Discharge

Abstract: In order to simplify the complexity of ultrasonic and electromagnetic wave signal detection and improve the accuracy of partial discharge detection of power equipment, a sensor design idea ...
GitHub

Releases: neelamsuvarna/Ultrasonic-sensor---Arduino-UNO

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.
IEEE

Integrated Smart Trolley System: Arduino Nano-Based RFID Billing and Weight Sensor Augmentation

Abstract: In a shopping mart, imagine ten people waiting in line. If the first five people have many items in their carts, the last person with only one or two items may wait a long time to pay. To ...