Having a bit of a problem with the Arduino Nano RP2040. I'm trying to use the onboard microphone to read the frequency of a sound and then use that variable for calculations. However, while I can get the mic to respond to audio stimulus, I'm not sure what the values being recorded actually are. I want to be able to play for example a note at 80 Hz. I need to be able to identify a note.

  • 1
    Your last sentence does not make sense to me. Are you trying to play a note, or to identify a note? Apr 22, 2022 at 9:54
  • install Audacity on your computer record a sound and examine the recorded data ... audacityteam.org
    – jsotola
    Apr 22, 2022 at 14:42


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.