ToyRep 3D one of the cheapest 3D printers that exists
ToyRep 3D is the name of a Free Hardware 3D printer that has managed to be built with less than 100 euros, something that marks a milestone in the market.
General admission
Create your home smartwatch with Arduino Mini
A user creates a smartwatch from an Arduino Mini Pro board and a sensor board called GY-87, creating a gadget-compatible smartwatch.
ZelosLaser, a very popular cutter on the Internet
ZelosLaser is a very popular professional cutter that not only cuts but also allows you to make professional engravings with hardware libre and available to everyone.
They create a sonic screwdriver like the one in Doctor Who
A fan of Doctor Who has created and published how to make a sonic screwdriver with Arduino gemma and some LEDs for the enjoyment of fans of the Doctor