MEMS (sensors)

LSM6DSO not reading 1G at rest

I  am writing my own library in C++ to operate the LSM6DSO and when the sensor is at rest it reads 0.5 G on the z-axis, I've tried the code with 2 ICs, one in an Adafruit breakout board, and another one in an old PCB that had the sensor soldered one ...

Temperature characteristics of IIS2DLPC

I am making a simple inclinometer using IIS2DLPC. The 'Zero-g offset change vs. temperature' of IIS2DLPC is specified as a maximum of ±1mg/℃, but some of the boards I made have reached 2.93mg/℃.Some have relatively good values ​​of 0.3-0.4mg/℃, while...

How to write library for LSM6DSOWTR

I am trying to interface LSM6DSOWTR with stm32 using I2c interface. This is the schematic i have made for this module While connecting SD0/SA0 is connected to GND, I have tried to run the I2C scanner and found that it its address is 0x6A but in the m...

STEVAL-BFA001V1B wrong cable description

I wanted to try the STEVAL-IDP005V1 from STEVAL-BFA001V1B,I followed the description given in UM2438and nothing worked,Finally I realized that the cable description is wrong (or may be I've got a bad cable),the ground is on white, not on blue wire

STEVAL-BFA001V1B : Confused with the wiring for powering the device

Hi, I came across this post:https://community.st.com/t5/mems-sensors/steval-bfa001v1b-wrong-cable-description/m-p/782314#M25282which says that the documentation for the device is wrong and wiring colors for 18V and GND are not correct as per the docu...

LSM303AGR Calibration

Hello everyone, I'm contacting you today in order to understand my error during the calibration of my LSM303AGR sensor located on a PCB. The ultimate goal is to create a compass with tilt compensation but I try to get a good precision with magnetomet...

Using LIS2DH on a SPI bus with many devices

It seems that its CS is inactive, the LIS will assume that it should be in I2C mode.But if I have multiple devices on the SPI bus, then I want to be able to disable I2C mode altogether.Our board has exactly this setup and it seems that whenever I ena...

Question from Predictive Maintenance Webinar 29th of April: Is there any difference between: STEVAL-BFA001V1B and STEVAL-BFA001V2B?

LSM6DSO32 step count data

Hi, I designed a special board that includes the LSM6DSO32 sensor. I want to get step count data, for testing I am using ESP32-CAM with LSM6DSO32 via I2C. I have followed the basic routine mentioned in application notes. I can get only garbage value....