Generate Real-time Audio on the Arduino using Pulse Code Modulation – Charrette & Beget
Arduino sine wave generator - Electronics Projects - Electronics fun
DIY Arduino Waveform Generator or Function Generator
1hz-150khz Signal Generator Module Adjustable Pwm Pulse Frequency Function Generator Duty Cycle Ttl Lcd Display 5v Dc 12v 24v - Signal Generators - AliExpress
Arduino Due Arbitrary Waveform Generator - Arduino Project Hub