A real-time object detection and distance measurement system using the HC-SR04 ultrasonic sensor, developed in Embedded C for the LPC1768 microcontroller using Keil μVision. embedded-systems led ...

HAL-based driver for the HC-SR04 ultrasonic sensor, implemented on an STM32F446RE Nucleo board. Key features include temperature-compensated distance calculation, pulse width validation with hardware ...

A pocket-size ultrasonic bladder-volume sensor has been constructed and tested with successful results. This paper describes the sensor and presents results from its use on healthy volunteers.