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MEMS (sensors)

Ask questions and find answers on ST MEMS sensors, such as the LSM6DSV and the LSM6DSL. Learn how to use the SensorTile.Box, and STEVAL kits.

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Hello ST community Experts , MEMS mic + STM32f4xx evaluation board I am trying to stream PCM data serially on UART . Some issues please help?

Configurations :- STM32CubeMX M4-F446RE+ICS43432 micsysclk-168MHz HSE, DMA- circular,SPI2_RX ,half wordI2S2 - half duplex ,master receive mode 32KHz audio frequency USART2 - 9600 B/sPDM2PCM middleware use for conversion..1)Can Anyone suggest is there...

SG.4 by • Associate II
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How to reduce the size of MEMS' microphone data

Hi,I'm using an ST's digital MEMS microphone in my application. It is connected to an STM32L452 by SPI and the acquired data is stored in an SDCard.My sampling frequency is 32 KHz which means the microphone produces a considerable amount of data. So...

MAndr.233 by • Associate III
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MotionAC Library - understanding "dynamic" calibration, behavior of the "is_calibrated" flag returned from MotionAC_Update(), and if update rates > 100Hz are supported.

In working with the MotionAC Library, I have the following questions to better understand behaviors.1) We wish to create a Graphical User Interface which indicates the status of the "dynamic" or 6-point tumble calibration, and want to display current...

SLibe by • Associate II
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Hello experts , I have a query on how to acquire a PCM audio 2000 to 4000 samples nearly from a PDM out conversion of a MEMS mic and display them on UART/USART for every 2 or 5 seconds? Can any expert help me with a coding part. Thanks in advance

MEMS mic -ICS43432+ STM32f4xx nucleo board.i have given a 168MHz HSE clock configuration and used a PDM2PCM middleware too with a 32KHz audio frequency with I2S in master receive mode. and DMA in SPI2_RX DMA1 Stream 3, in the STM32Cube MX.The oscillo...

SG.4 by • Associate II
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  • 4 replies
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Resolved! Hello ST Experts I have a query on mems mic interfacing STM32f466re nucleo board i am getting a PCM data in PCM_buffer .Now How do I acquire this data and convert it to dB and print serially for every 1 second or 5 seconds .

the noise intensity level print on serially on monitor . from this the threshold has to be set to detect pleasant noise or harmful noises for further coding and analysis.I am stuck at a point in PCM audio data out conversion to dB i.e noise level .Be...

SG.4 by • Associate II
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  • 8 replies
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LIS3DH X-axle value is stuck in maximum value

Hi,I've been testing LIS3DH sensor as an alternative to the LIS3DSH that we are using.In testing with two different devices I've seen that with range values 2 ... 8g the X-axle value is stuck in the near maximum value 0x7FF, while two other axles are...

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