Added basic Espressif PDM microphone support #7454 #9828
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Code looks reasonable to me. I say keep going. :-) Thanks! |
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This PR adds basic PDM microphone support to the Espressif port. Only the most basic functionality has been tested: 16-bit, monophonic input seems to generate appropriate data when viewed in the Arduino plotter.
Support required adding implementations in
ports/espressif/common-hal/audiobusio/PDMIn.[c|h], as well as a change toshared-bindings/audiobusio/PDMIn.cto allow for clean deinit of underlying ESP-IDF objects.This PR is not intended to be complete, I just wanted to get it in front of more people to get feedback.