[#20] PDM Microphones - Audio DSP On STM32 (16 Bit / 48 kHz)
In this video I want to show you, how you can interface a PDM microphone to the STM32 microcontroller and how to reconstruct the PDM bitstream into a PCM stream in order to output it via I2S to an external DAC.
5:47 System Overview
9:34 Cube-MX Config
13:22 Code Review
17:41 Live Demo
See the GitHub project here:
https://github.com/YetAnotherElectron...
Check out ST's AppNote for more information:
https://www.st.com/resource/en/applic...
Used hardware:
Pmod I2S2 Stereo In/Out Board
https://store.digilentinc.com/pmod-i2...
STM32F407G-DISC1 Evalboard
https://www.digikey.de/short/pd8tnp