It’s a simple robot that drags a pen around to draw on paper. [Tim] decided to build one that uses a simple skid-steer design to get around the page. An Arduino Nano is the brains of the ...

This microcontroller is at the heart of countless impressive projects like RFID door locks, automated plant watering systems, and even robot cars ... On the software end, the Arduino code is pretty ...

[mircemk] built a simple yet elegant machine that can play tic-tac-toe against a human player in a way that looks quite similar to the way humans play against one another: by drawing. The robot ...