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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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Resolved! LIS3DE vs. LIS3DH HW FIFO Handling

Posted on June 11, 2018 at 14:55Hello,we've been using the LIS3DH on a development board and have switched to the LIS3DE for the prototype. We're using the HW fifo feature to batch-read values from the sensor. The LIS3DE is only 8-bit and thus I was...

Resolved! What is the silicon square on the LPS22HB and LPS25HB?

Posted on June 18, 2018 at 11:17In section 10.1 of the datasheet for the LPS22HB the square on top of the package is labelled as 'Sensing area (exposed silicon)', which makes it sound quite fragile.  However I noticed in a recent press release: http...

mart J by • Associate II
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Problem with the basic project of the SensorTile

Posted on June 14, 2018 at 17:13Hi everyone,I've downloaded the basic project of the SensorTile from the St official site, when I try to rebuild with the IAR platform I obtain this error:Error[Li005]: no definition for '__iar_FSin' [referenced from ...

How to do OPC of LPS22HB or LPS22HD?

Posted on June 15, 2018 at 11:36I'm trying to find the opc procedures of LPS22HB or LPS22HD.The datasheet only states you would refer to the pressure offset register.There're no detailed information about opc procedures.Where can I found that?These ...

just4you by • Associate II
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Manual sampling rate with LIS3DSH

Posted on June 15, 2018 at 07:59Dear Community,In a multi-sensor application, we need to be able to use a fixed sampling rate, which can not be set in the LIS3DSH settings (200Hz, 400Hz, 800Hz, 1600Hz), e.g. 1kHz. My idea was now to use the highest ...

LIS2DW12 INT1?

Posted on June 15, 2018 at 08:28Hi,1. Write 64h in CTRL1 // Turn on the accelerometer // ODR = 200 Hz, High-Performance2. Write 04h in CTRL6 // FS 2 g LOW_NOISE enabled3. Write 20h in CTRL7 // Do not use low-pass filter for 6D, enable interrupts4. W...

PDM microphone on STM32F103

Posted on June 18, 2018 at 17:10Hi all,is there a way /sample to connect a MEMS mic (MP34DT01) via SPI to a STM32F103VB (no FPU)?We do not need each audio data sample. We just want to have a kind of audio level meter to detect any noise in a room.Th...

knut2 by • Associate II
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