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Showing content from https://github.com/ArmDeveloperEcosystem/microphone-library-for-pico below:

ArmDeveloperEcosystem/microphone-library-for-pico: Capture audio from a microphone on your Raspberry Pi Pico or any RP2040 based board. 🎤

Capture audio from a microphone on your Raspberry Pi Pico or any RP2040 based board. 🎤

• RP2040 board
  • Raspberry Pi Pico
• Microphones
  • Analog
    • Electret Microphone Amplifier - MAX9814 with Auto Gain Control
  • PDM
    • Adafruit PDM MEMS Microphone Breakout

GPIO pins are configurable in examples or API.

See examples folder.

git clone https://github.com/ArmDeveloperEcosystem/microphone-library-for-pico.git 

1. Set up the Pico C/C++ SDK
2. Set PICO_SDK_PATH

export PICO_SDK_PATH=/path/to/pico-sdk

1. Create build dir, run cmake and make:

mkdir build
cd build
cmake .. -DPICO_BOARD=pico
make

1. Copy example .uf2 to Pico when in BOOT mode.

Apache-2.0 License

This project was created on behalf of the Arm Software Developers team, follow them on Twitter: @ArmSoftwareDev and YouTube: Arm Software Developers for more resources!

The OpenPDM2PCM library is used to filter raw PDM data into PCM. The TinyUSB library is used in the usb_microphone example.

Disclaimer: This is not an official Arm product.

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