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 ...

Optical sensors articles from across Nature Portfolio Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient ...

Ultrasonic sensors are used across a variety of industrial areas, as they measure distance simply via calculating the difference of time between transmission and reception of signals. However, ...

Narrowband ultrasonic sensors can be used for motion tracking and small-scale localization. Moving sensor nodes emitting ultrasonic waves produce a Doppler shift in the received signals. Doppler ...