About This project is a real-time distance indicator using an HC-SR04 ultrasonic sensor and LEDs to visually represent object proximity. It is designed to provide intuitive feedback for applications ...

When using an ultrasonic sensor, it is important to be aware that nearby unwanted targets that are beyond the beam angle can inadvertently be detected because the transducers are still sensitive at ...

[Klaus] wanted some sort of aid for parking his car, and after running across a $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus]&#82… ...

Materials Needed: -HC-SR04 Ultrasonic Sensor -LED (Light Emitting Diode) -Resistor (220Ω) -Arduino Board (e.g., Arduino Uno, Mega) -Jumper Wires -Breadboard (optional) Explanation: #define echoPin 7 ...

Ultrasonic sensors (US) are widely used for detecting objects in different application areas such as parking sensors in automobiles, assisting in UAV navigation etc. In our current work, we use US for ...

Obstacle detection (OD) techniques for collision avoidance applications in automobiles and unmanned aerial vehicles have been of research interest in the recent years. This technical idea is ...

A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...