This example does the opposite, but perhaps it is a reference for study.
https://github.com/earlephilhower/ardui ... raries/PDM
This example reads audio data from the on-board PDM microphones, and prints out the samples to the Serial console. The Serial Plotter built into the Arduino IDE can be used to plot the audio data (Tools -> Serial Plotter).
Is this example what you are referring to?
https://github.com/raspberrypi/pico-exa ... squarewave
https://github.com/earlephilhower/ardui ... raries/PDM
This example reads audio data from the on-board PDM microphones, and prints out the samples to the Serial console. The Serial Plotter built into the Arduino IDE can be used to plot the audio data (Tools -> Serial Plotter).
Is this example what you are referring to?
https://github.com/raspberrypi/pico-exa ... squarewave
Statistics: Posted by Gustavo_Murta — Fri Oct 03, 2025 12:17 am