The code includes two Arduino libraries: one for the servo and another for the ultrasonic sensors. The main code is a simple 14-line piece with a simple if-else statement you can readily modify.

Whether it's your first time practicing coding, or you're a seasoned tinkerer, Arduino is an excellent platform to get your hands dirty with coding and tech.

This library includes dozens of Arduino sketch examples,” according to its maker, New York-based Teknic. For a more comprehensive programming environment, there is a C++ library which includes example ...