Ground-penetrating ... can also be built with a few common items now for a relatively small cost. This is a project from [Mirel] who built the system around a Arduino Mega 2560 and antipodal ...

Connecting the display pins directly to Arduino I/O pins is not a good practice. For testing purpose only one 330 Ohm resistor (R2) is added between ground rail (0V) and the common cathode pins (3 & 8 ...

It’s the M1 Rover, an unmanned ground vehicle, built around the Arduino platform. The design goal of the M1 Rover isn’t just to be a remote-controlled car that can be driven around indoors.