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Explorer II
May 14, 2025
Question

Interfacing microphone sensor in STM32H757I-EVAL

  • May 14, 2025
  • 1 reply
  • 380 views

Hi, 
I am trying to interface the internal microphone sensor (MP34DT05TR-A) in STM32H757I-EVAL. The goal is to record audio from the MP34DT05 microphones, store it on a microSD card, and play it back on a PC. I'm not able to navigate through this; could you share some resources or the steps that need to be followed to configure this and to record the audio? Also, there are three different data formats: audio codec, DFSDM, and PDM. Which do you think will be suitable for the data acquisition part? 

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    1 reply

    Technical Moderator
    May 14, 2025

    Hello @priya_12;

     

    For audio record, I recommend you to start with available examples under STM32CubeH7:

    • \STM32Cube_FW_H7_V1.12.1\Projects\STM32H747I-EVAL\Examples\DFSDM\DFSDM_AudioRecord
    • \STM32Cube_FW_H7_V1.12.1\Projects\STM32H747I-EVAL\Examples\BSP

     

    I hope these examples can help you?

     

    Thank you.

    Kaouthar

    priya_12Author
    Explorer II
    May 16, 2025

    Hi, 
    The first example mentioned is available only with respect to STM32H743I-EVAL. There are some features different in both boards. Could you tell me how to execute this?