Waveform / Function Generator Using Arduino With Code and Circuit || Proteus Simulation - YouTube
DIY Simple Square Wave Generator Up to 1MHz - Hackster.io
AD9850 DDS Signal Generator Pinout, Interfacing with Arduino, Features
DDS sine signal generator for AM modulation from 1 Hz to 40 MHz with an AD9850 or AD9851, an ATmega328, and an Arduino firmware | Electronics and Mechanics for Hobbyists
11. Project: A Programmable Signal Generator - Arduino: A Technical Reference [Book]
How to make a simple function generator with an Arduino
Arduino Powered Portable Function Generator | Hackaday