A simple library for HC-SR04 ultrasonic sensor. It uses STM32 HAL library. Copy the library header and source files to your project folder(Inc and Src folders). Configure STM32CubeMX to use GPIO pins ...

I purchased one of each of these cheap sensors recently from aliexpress for testing purposes. Compared with the ubiquitous HC-SR04 (*), I liked the idea of having a combined emitter/receiver, i.e.

Abstract: Proximity sensing is of great importance for robot control during human–robot collaboration (HRC). Commonly used machine vision sensors or photodetectors are subjected to the light block ...

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 ...