Xose Pérez @ tinkerman.cat build a MQTT LED matrix display to get notification messages. My MQTT...

Mini Arduino Plotter Without a Servo Motor: In this project I will show you how to turn two old DVD-drives into a mini plotter.this project is simple and easy to do and makes a good practice if you want to make a real CNC machine(this is why i started this project to prepare my self for a big…