This project implements an embedded ultrasonic liquid level monitoring system with an LCD interface. The system measures the distance from the sensor to the liquid surface and converts this ...

This project implements a proximity-based LED indicator using an ultrasonic sensor. LED brightness varies smoothly with distance, using filtering and PWM to provide stable and responsive visual ...

Ultrasonic sensors have been a staple in the sensing space for several decades due to their capabilities, flexibility, and low cost. As the rise of IoT finds its way into virtually every market and ...

Abstract: This paper presents a secure three-dimensional mapping technique using ultrasonic sensor and storage of the positional information in a local server such that only an authorized person can ...

This post is a review of the popular waterproof ultrasonic sensor JSN-SR04T. I hope this will serve as a backdrop for some interesting ultrasonic distance sensor experiments and projects. A number of ...

[Mike] lives in a temperate rainforest in Alaska (we figured from his website’s name) and uses a 570 gallon oil tank to supply his furnace. Until now, he had no way of knowing how much oil was left in ...

The ultrasonic beam from this sensor penetrates the skin, detects signals reflected from the vessel walls, and measures changes in vessel diameter. Using this principle, it measures the real-time ...