Japanese Ph.D. candidates built a portable sonar device with a 3D printer, an Arduino and a few sensors sean buckley Associate Editor Updated Tue, Dec 29, 2015 · 1 min read ...

The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eB… ...

As it turns out, IrukaTact was constructed using off-the-shelf items like an Arduino Pro Mini hobby board and a sonar sensor from MaxBotix.