If you’ve done 3D printing, you’ve probably at least heard of Tinkercad. This popular CAD package runs in your browser and was rescued from oblivion by Autodesk a few years ago. [Chuck]… ...

The Arduino sketch will send a sine wave over pin 11, which makes the LED appear to pulsate. Rather than calling sin(), it uses a machine learning model to approximate the sine wave. Note: The Uno ...