For those worrying that [Faransky] is relying on the PWM functionality of the Arduino Nano to generate waveforms, have no fear. At the heart of the device is a AD9833 waveform generator ...

Read more: Major PC Monitor Brands Ranked Worst To Best The board that started Arduino's Nano family, the Nano is a classic platform ideal for basic circuit building and breadboard prototyping.

This build relies on a solid-looking lead screw to move a carriage up or down. An Arduino Nano acts as the brains, a stepper motor drives the lead screw, and a small display shows stats such as ...