Arduino Powered Portable Function Generator | Hackaday
Simple Waveform Generator with Arduino Due | Arduino Documentation | Arduino Documentation
Graphical Waveform / Signal Generator Case w/ Arduino Pro Mini & AD9833 (Sine, Square and Triangle) by WiZeus | Download free STL model | Printables.com
GitHub - spencertipping/arduino-fngen: A very lame function generator
Building a Simple Function Generator with an Arduino
12$ signal generator using Arduino and AD9850 - electronics-lab [Rik]