DUE libs

https://github.com/cmasenas/SineWaveDue

https://github.com/diegozeng/FunctionGenerator

https://github.com/stimmer/DueVGA

https://github.com/arduino-org/arduino-library-audio

AD9954 lib

https://github.com/JQIamo/AD9954-arduino

SPI

https://github.com/PaulStoffregen/SPI

Подборка библиотек

https://arduinomaster.ru/biblioteki-arduino/skachat-biblioteki-arduino/