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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Forum Posts

Resolved! LIS2DH12 bypass capacitor

Hi, I'm putting down a LIS2DH12 accelerometer on a new PCB. The datasheet calls for an aluminum capacitor on VDD, but the eval board (STEVAL-MKI151V1) shows a small capacitor that looks like a ceramic. I don't know for sure because I can't find the B...

How to Change Sampling Frequency for ST BLE Sensor App

Hello STM32 Community,I’m currently working with the STEVAL-PROTEUS1 evaluation board, which integrates an STM32WB5MMG microcontroller and an IIS2DLPC MEMS accelerometer. I’m using the board together with the ST BLE Sensor mobile app, and it works gr...

Tunahan by Associate
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  • 1 replies
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Practical water resistance of LPS33HW LPS27HHW or LPS28DFW

Although these devices are technically "water resistant", they are sometimes described as "water proof" (even in STM materials), and the data sheet permeability of the gel is quite low. Clearly these devices can survive immersion for at least several...

arc12 by Associate
  • 220 Views
  • 1 replies
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STHS34PF80 stuck in presence state

Hi All,I use STHS34PF80 for presence detection with embedded algorithm however it easily get stuck in presence status and cannot release from the status.Use case:People sit in from of the sensor around 30 cm, with lens on STHs34PF80.When people enter...

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SLin.11 by Associate III
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  • 8 replies
  • 1 kudos

STHS34PF80 proximity application

Hi everyone, I'm developing a tamper detection circuit for a meter enclosure. I'm considering the STHS34PF80 infrared proximity sensor, but I'm struggling to find reference materials or application notes specifically related to tamper detection using...

dhruvit by Associate II
  • 1111 Views
  • 2 replies
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Resolved! Is LSM6DSR a drop-in replacement for LSM6DSL ?

Hi everyone,I'm working on a project involving the LSM6DSR sensor (very similar to the LSM6DSL), connected via SPI to a Verdin i.MX8M Plus SoM (NXP) mounted on a Dahlia Carrier Board. The firmware runs on the Cortex-M7 core (MIMX8ML8DVNLZ) using Zeph...

yanakk by Associate II
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  • 6 replies
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AIS2DW12 FF Int detect problems

Hello ,I'm using an STM32U575 with an I2C connection to the AIS2DW12 accelerometer. The goal is to generate an interrupt when a free-fall event is detected. I followed the instructions provided in the datasheet (AN5326 - AIS2DW12 ultralow-power 3-axi...

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LSM303AH SPI FIFO burst read producing zeros

Hi, I am working with the LSM303AH (accelerometer + magnetometer) as a potential replacement to the LIS2DS12 (accelerometer only). The accelerometer section of both devices seems identical with the only exception being the SPI on the LSM303AH is 3 wi...