On a recent rainy afternoon, [Thanassis Tsiodras] decided to build his own Forth for the Arduino to relieve the boredom. One week of intense hacking later, he called it done and released his projec… ...

Build your own DIY cardboard security safe with a working code lock to keep your money or small valuables safe! 🏦🔒 In this step-by-step tutorial, you’ll create a functional cardboard mini ...