Inside [Klaus]’ device is an Arduino Uno, an HC-SR04 ultrasonic distance sensor, and an Adafruit Wave Shield. Originally, this parking/distance sensor used a small TFT to display the distance to ...

While a well-known use of this is sonar, ultrasonic sensors can also be put to use ... A motor rotates it around a 180-degree field-of-view and an Arduino takes and records measurements during ...

All you generally need is the Arduino IDE, which already includes most of the popular libraries for interfacing with frequently used components like ultrasonic sensors and LCD modules. The ...