Operationally speaking, [Cameron] is reading in the dial’s pulses with an Arduino Nano and using ... t the first time we’ve seen a rotary dial used to control volume, but that’s one of ...

At the heart of the device is a AD9833 waveform generator; with the Arduino, rotary encoder, and 16×2 LCD providing an interface to control it over SPI. Unfortunately, the AD9833 doesn’t have ...