Arduino StoneSpray – 3D printing with Sand

StoneSpray: Arduino 3D printer with Sand Project

Awesome project, which uses sand and a liquid to create a robot capable of printing in 3D.

 The device uses an Arduino UNO, Processing application and a custom built jet spray system to deposit the mix of soil and binder, for constructing architectural shapes.

Link [Creative Applications]

Line follower robot - PID algorithm with Arduino

A practical PID algorithm in a Arduino Line follower robot

In this Arduino project, we can find an implementation of a PID algorithm applied to a line follower robot which allows speeds that would otherwise not be possible.

Link [IgorAraujo]

Easy Arduino Robot Tutorial

How to construct a easy and funny robot with Arduino

In this tutorial you will see that you don´t have to be an electronic guru, or a super skilled programmer to make a simple, easy and funny robot.
A robot made ​​with a cheap toy car, and some components (and a Arduino of course)

Link [Lets Make Robots]