Shifting to the new waterproof ultrasonic sensor is not a big deal, since it’s pretty easy to modify some example codes to use it. The quick road test, oh it’s a simple approach to display the ...

[Klaus] wanted some sort of aid for parking his car ... $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus]’ device is an Arduino ...

In addition to the Arduino, you’ll need the four wheels, batteries, infrared and ultrasonic sensors ... to each other to put the car in motion using the code that is powered by the Arduino ...

and another ultrasonic sensor on the inside of the lid for detecting the trash level. On the software side, things are just as straightforward. The code includes two Arduino libraries ...

This ultrasonic radar project is from [mircemk] who uses a small ultrasonic distance sensor attached to a rotating platform. A motor rotates it around a 180-degree field-of-view and an Arduino ...

All of these projects either use minimal components, short (and easily understandable) codes, or both ... with only an Arduino UNO, ultrasonic sensor, force-sensitive resistor (or push button ...