This is a sample project for receiving and transmitting audio data using Arduino RP2040 microcontroller. The development board has a built-in microphone which makes this device very suitable for data-over-sound project.

Setup

Arduino RP2040 Connect
OLED SSD1306
Generic speaker

Demo

https://user-images.githubusercontent.com/1991296/177210657-3c7421ce-5c12-4caf-a86c-251191eefe50.mp4

Watch high quality on Youtube