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 ... potentiometer as a voltage divider on the ...

Fortunately, [Jason] has applied his knowledge to build a SI5351 library for the Arduino and a breakout board for the chip. The SI5351 is a programmable clock generator. It can output up to ...