MEMS (sensors)

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Resolved! Very noisy signal from IMP34DT05 recorded with STM32-F401RE

Hello,I'm using the IMP34DT05 available with the STEVAL-MIC003V1 kit to record audio the nucleo-f401re. I'm using the PDM2PCM library to convert the PDM stream to PCM data. The audio is recorded at 8kHz.I have tried reproducing 1kHz tone on the micro...

frnt by Senior
  • 804 Views
  • 7 replies
  • 0 kudos

PDM to PCM via DFSDM getting nothing but static

On the BL47E-IOT01A2 there are two mems microphones (MP34DT01) both connected to DFSDM1_DATIN2. I'm trying to extract the data from just one of those boards and convert it to PCM using a DFSDM filter. I've configured DFSDM Channel 2 to connect to PDM...

RBair.3 by Associate II
  • 369 Views
  • 1 replies
  • 0 kudos

Resolved! 2 PDM microphones data from SPI using PDM to PCM library?

Hello!I want to interface 4 PDM microphones with STM32F401RE's SPIs in stereo config(like in the pic above), I have a problem of how to get its data using pdm to pcm library. As the data will be alligned in this form(M1bit1, M2bit1, M1bit2, M2bit2......

0693W00000Y76ZqQAJ.png
Viki by Associate II
  • 385 Views
  • 1 replies
  • 0 kudos

Help in the configuration of pins for 2 microphones

Please help me. I am trying to configure pins for reading the data coming from 2 microphones mount in a X-NUCLEO-CCA02M2. To read the data I am using a NUCLEO-F401RE. I read all the documentation for tthe expansion but nothing is working. In this mom...

0693W00000WKhaQQAT.jpg 0693W00000WKhaUQAT.jpg 0693W00000WKhaPQAT.jpg
ATeli.1 by Associate II
  • 314 Views
  • 1 replies
  • 0 kudos

How to convert data coming from SPI

Hi, I connect X-NUCLEO-CCA02M1 to my NUCLEO-F401RE. I am using SPI1 for the communication between devices. For what I have understood the function below convert N bit (for me N = in a integer. Since i want to stream via UART those bit how can i proc...

ATeli.1 by Associate II
  • 273 Views
  • 2 replies
  • 1 kudos

the sensory library does not work at all.

Hello, I'm working on a project involving voice recognition. So, I used the stm32 sensory library to complete this project and the MP23DB02MM digital MEMS PDM microphone. However, I only found one example that used STM32H747I-DISCO, so I ported it to...

0693W00000SuITyQAN.png 0693W00000SuIToQAN.png 0693W00000SuIXCQA3.png

Resolved! Very noisy signal from IMP34DT05

Hello,I'm using the IMP34DT05 available with the STEVAL-MIC003V1 kit to record audio the nucleo-f401re. I'm using the PDM2PCM library to convert the PDM stream to PCM data. The audio is recorded at 8kHz.I have tried reproducing 1kHz tone on the micro...

frnt by Senior
  • 314 Views
  • 3 replies
  • 0 kudos