Example project showcasing how to use a Raspberry Pi Pico, Adafruit's PDM MEMS Microphone Breakout, and Adafruit's 2.0" 320x240 Color IPS TFT Display with microSD Card Breakout to "See sound in real-time".
This project also leverages Arm's CMSIS-DSP library for optimized on-board digital signaling processing.
- Raspberry Pi Pico
- Adafruit's PDM MEMS Microphone Breakout
- Adafruit's 2.0" 320x240 Color IPS TFT Display with microSD Card Breakout
+---------+-------------------+ +---------+-------------------+ | PDM Mic | Raspberry Pi Pico | | ST7789 | Raspberry Pi Pico | |---------+-------------------| |---------+-------------------| | 3V | 3V3 | | VIN | 3V3 | |---------+-------------------| |---------+-------------------| | GND | GND | | GND | GND | |---------+-------------------| |---------+-------------------| | SEL | GND | | SCK | GPIO18 | |---------+-------------------| |---------+-------------------| | DAT | GPIO2 | | MOSI | GPIO19 | |---------+-------------------| |---------+-------------------| | CLK | GPIO3 | | CS | GPIO17 | +---------+-------------------+ |---------+-------------------| | RST | GPIO21 | |---------+-------------------| | D/C | GPIO20 | +---------+-------------------+ git clone --recurse-submodules https://github.com/ArmDeveloperEcosystem/audio-spectrogram-example-for-pico.git- Set up the Pico C/C++ SDK
- Set
PICO_SDK_PATH
export PICO_SDK_PATH=/path/to/pico-sdk- Change directories
cd audio-spectrogram-example-for-pico - Create
builddir, runcmakeandmake:
mkdir build cd build cmake .. -DPICO_BOARD=pico make -j - Copy
audio_spectrogram.uf2to Pico when in BOOT mode.
Disclaimer: This is not an official Arm product.