Can PDM microphone detect pitch?

[salmonammon]

Hello. I'm helping a student build a Circuit Python project that will detect a musical note and indicate if it matches a given frequency.
I have some experience with electret mics and Arduino, but most of the audio projects I see for Circuit Python use PDM mics. We have the Adafruit PDM MEMS Microphone Breakout attached to a Feather 2040. We have it registering values, but all the examples we find deal with volume, not frequency. I appreciate any advice.

[adafruit_support_bill]

See this example. It uses the pdm microphone on the CircuitPlayground:
https://learn.adafruit.com/circuit-playground-o-phonor

[salmonammon]

Awesome! Thank you. The Google machine would not cough up that page despite my best efforts. Cheers!