If you want to do a quick design for 3D printing, Tinkercad is pretty easy to use ... It is possible to program and simulate an Arduino in the same tool — which always strikes us as an odd ...

8×8 LED Matrix modules are now widely available, and fortunately they are easy to use with our favorite Arduino microcontroller. 8×8 LED Matrix module have many applications in real life, such as ...

Let it hit your red LED and you’ve lost a point ... Inside the cool laser-cut box is an Arduino Uno and a 9V battery, plus a current-limiting resistor and the all-important buzzer.