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 ...

That’s just what [rgco] did to build this nifty arbitrary wave generator. The build improves on prior work by [rgco] with the Arduino Uno, with which they built a device that could output at 381 ...