MEMS (sensors)

Hi,May I kindly clarify whether MKI239A adapter is compatible with MKI109V3 motherboard?From MKI239A's website and Unico's GUI (device selection list), it seems that it is compatible.But from MKI109V3's "Tools&Software" page and UM2116 (Sec.3 - Supported MEMS adapter boards), MKI239A is not shown in the list...I am a bit confused... In my case, when I chose the adapter, an error popped up, saying that "adapter has not been recognised, and the who_am_I register value does not match".This scenario does not change even if I have updated the firmware of the motherboard to the latest (3.58.2) following the 

Hi @Federica Bossi , I am trying to conduct data collection using STEVAL-MKI239A (for IMU LSM6DSV) and its motherboard STEVAL-MKI109V3. Following UM2116, I first installed the latest version of Unico (v9.16.0) for windows 10, and downloaded STM32CubeProgrammer for firmware upgrade. In STM32CubeProgrammer, even though I was trying to enter DFU mode, by "pressing button BT2 before supplying the board and release it when LED D6 lights up". But on my device monitor, the "serial device" only changed to "STM32 BOOTLOADER" rather than "STM device in DFU mode"... Anyway, the following steps 3-6 in Sec 2.2.2 of UM2116 works and by choosing ProfiMEMSToolV3.58.2_00_08000000.bin, the latest firmware seemed to be installed.After disconnecting from STM32CubeProgrammer, I unplugged the motherboard and pushed the adapter into its socket. Then I plugged the USB in again, op

Hello,I hope you are well.Actually I'm using LPS22DF sensor in an environment where there is dust and water.Can you give me some informations and idea on how can I protect the sensor (waterproofing)?Thank you 

I have purchased the SensorTile.box Pro from Mouser, and the device is excellent to work with on coding. I have loaded 0x0000000 with bin file default from F:\ST_SensorTile_Box_Pro\STM32CubeFunctionPack_STBOX1_V1.5.0\Projects\STWIN.box\Applications\DefaultFw\Binary\DefaultFw.binThe SensorTile.box Pro does not work and is unable to access the Android to start the Dice or Compass demo.How can I get the SensorTile.box Pro back on the day I purchased it on July 27, 2023.Best Regards,Rob

We are currently working on an ultrasound-related medical application. We need some guidance regarding the ultrasound AFEs for our device.Our application involves generating signals from a depth of 3-10 cm and imaging within a frequency range of 5 to 10 MHz. In this regard, we were wondering if ST offers any components that are compatible with our requirements. Specifically, I would greatly appreciate it if you could provide specifications, datasheets, and any guidance related to ultrasound evaluation kits.Additionally, we are also interested in 2D probe arrays (piezo Transducers), which I understand ST does not sell directly. Could you kindly recommend any companies or suppliers that we can contact for 2D probe arrays that are compatible with ST components?

Hello Team,Recently I bought Sensortile board from ST.  I tried to interface the LSM6DSM gyroscope and accelerometer sensor with STM32L476 microcontroller through SPI half duplex master, but I'm not able to read the device ID or 'Who Am I' register address in LSM6DSM.  I hope SPI is working fine it seems, but not able to receive the device ID.  It is returning constantly 0xFF instead 0x6A.  Here I attached the source code of my project, please go through and let me know the solution to interface this module.  Because of this problem I've stuck and I don't know how to proceed further, so please let me know the solution as soon as possible.

There is precious little guidance for using Unico-GUI with external sensors on the Sensor-Hub of the ISM330DHCX. The Unico-GUI with the ProfiMEMS tools and the ISM330DHCX daughtercard doesn't seem to properly configure the sensor hub to enable communications with the external sensor.How does one configure the Unico-GUI on profiMEMS to enable the Sensor Hub to write/read data on the external sensor? It seems the STM32F401 micro should be responsible for configuring mode2 on the ISM330DHCX. How does one convince it to do so?I'm monitoring the signals on the i2c bus and I see start/stop signals, but NO data transfer, despite having setup the Sensor Hub Registers.I believe each accelerometer data ready should trigger the commands in the Sensor hub to write the read data command and read 2 bytes of sensor data into the FIFO. Not happening.I must be missing something.

Hello Everyone!I am working on an application where I have to read the temperature sensor once every minute, and I would like to put the sensor in power down mode when I don't need to read the temperature.Details:1) I am using an STEVAL-MKI190V1 board2) I am measuring the the current on VDD only (VDD_IO is connected directly to 3.3V) with an STLINK-V3PWR board set at 3.3V out, and the STM Cube Monitor Power software.3) I am controlling the eval board via an STM32L011K Nucleo board4) Communicating via SPI, 4 wires, nothing else attached to the eval board (other than power and gnd, of course).5) I am using the MEMS1 drivers6) I've turned off the pull-up resistors on CS and SDO, but that doesn't really matter because I'm measuring the current on VDD only. So I tried to put the sensor in power down mode by writing a 0x00 in the CTRL1 register, to set ODR to power down, MODE to low power and also LP_MODE to LP mod

Hello everyone, I am in the development phase of a wearbale project including the use of LSM6DSO and LIS2MDL sensors.I found in the datasheets the power consumption related to the two sensors whne powered up at 1.8 V but I didn't find anythong about their current consumption on other VDD. Is there a resuming table that links the sensor's current consumption to their power supply?Thank you!Lorenzo 

I'd like to use SFLP for LSM6DSR. where can I find the examples and SDK? I searched around but couldn't find any. Thanks,

Hey, I am using lsm6dsr + nrf 52811.  I found out the driver code provided by ST for lsm6dso in NCS Zephyr driver code. Can I use the lsm6dso driver code for lsm6dsr development? If I can't, what are the differences from lsm6dso for lsm6dsr?Thanks,

I would like to eliminate the influence of the gravitational field g from the measurement of accelerationI tried with a high pass filter. Is this the only solution?The problem is that the sensor evolves in space with orientations that vary over time. If the variations in acceleration evolve at the same rate as the orientation of the sensor, the low pass filter eliminates g but also eliminates the acceleration. how to do ? Thank you for your help !

Hidoes the wrap-around feature work for the FIFO output registers as well?Can I just enable wrap-around in CTRL5 register, and read 7*number of words in FIFO bytes starting with register 78h to get the entire content of the FIFO?I have a hard time retrieving the data in time, Tiva C lib takes way too long to start and stop SPI transactions. Now I don't have the hw with me to simply test it.thanks,Lorand

So this is a broad question, but I have been combing through the LSM6DSO datasheet all day, and I know that the sensor returns its own timestamp data. Beyond that, however, I am struggling to access this data. (My acceleration and gyro values are returned just fine.) I tried using the readRegister() function, and I tried seeing what values I get from printing (TIMESTAMP_EN). I am working in the Arduino IDE, and using the SparkFun board of the LSM6DSO, connected to an ESP32 Thing Plus C via the Qwiic connection, so there's no guesswork about the wiring. Here is my code: #include "SparkFunLSM6DSO.h"#include "Arduino.h"#include "Wire.h"

Hello,I'm working with MKBOXPRO and I'm using the Entry/Expert Firmware to send to my app via bluetooth accelerations and gyro speeds. I think default ODR is 60 Hz for both datas.How can I modify ODR and increase it?In case there isn't a way to do it wiithout coding which files of which fimrware I have to modify?Thanks, best regards.CClaudio De Checchi

Hi,Greetings!We are planning to use ASM330LHHTR in our design. As per the datasheet of Gyro sensor chip, it is recommended to have a decoupling capacitor of 0.1uF+10uF (Aluminum). Since we don't have enough space in our board to accommodate the Aluminum capacitor, can we use 10uF ceramic instead of 10uF Aluminum?Please let me know your thoughts and will it have any impact on the design?Regards,Sowmiya

The IMU sensor is  working on two input voltage supply 1.Vdd - Core supply 2.Vddio - digital I/O supply.My questions are in below.1.Is it better to supply the Vdd and Vddio seperately from two voltage regulators? 2.Is it better to supply the Vdd and Vddio from single voltage regulator?3.Which method 1 or 2 is best, to increase the accuracy of IMU sensor?4.What are power supply specifications(Ex: Output voltage accuracy and PSRR-power supply rejection ratio etc)?

Hi, Firstly, sorry for my low experiencia, i come here to try advanced in my project.I'm trying use the accelerometer LSMDSO with NUCLEO-F401RE and i i'm having difficult to read 3 axis data.Iam using the library present in the STM repository: https://github.com/STMicroelectronics/stm32-lsm6dso/blob/main/lsm6dso_reg.hPlease, its possible someone show a simple code to read the axis of LSM6DSO?I'm using I2C to realize the comunication and this peripherical (https://www.sparkfun.com/products/18020) Thank you!  

I want to utilize the Unicode GUI for my ISM330IS Project, but my motherboard does not respond.. I've already updated the motherboard's firmware, tried different Unicode versions on Windows, and even checked the STink driver. Interestingly, Unicleo and STM32CubeIDE are both functioning flawlessly with my hardware. Can you help me?

Hi, I am using a STEVAL-MKI109V3 mother board to evaluate 2 accelerometers :LSM6DSOX (STEVAL-MKI197V1)LIS2DUXS12I want to use the GUI software UNICO v9.14.6.0 but when I want to connect my device, an error popup appear : "ERROR : The adapter board has not been recognized. The WHO_AM_I register value does not match the device selected".I have updated the motherboard firmware with the v3.48.3 but I still have the problem with my 2 MEMS boards ...Can someone help me ?

I have a custom setup which contains a microcontroller STM32L412RB and a ICM-42688 P.I tried to communicate with the ICM-42688 P via SPI (4-wire, tried both 1MHz and 100kHz) using the command 0x75 to READ the WHO_AM_I register (thanks for implementing that!). Yet, I get back a 0x0 and not a 0x47. I then observed the signals in oscilloscope, transmission is happening properly but I'm not receiving any data from the IMU sensor.I also need to get the data from Accelerometer and Gyroscope registers. Can anyone help me through this..?

Hi ST Team, I have the body marking as below, but not sure under MPN#LSM6DSR or not? Seeking your support in checking on this case. Thank you in advance   Dai Nguyen

Hello...I'm currently testing the LSM6DS3TR-C sensor output before trying to proceed to calibration.I already run the internal self-test on the accelerometer and gyroscope, both results were between the acceptable range.After that I did my own tests on both sensors (change over temperature, change over orientation, noise calculation, time for stability, etc), I didn't get any problems while testing the acelerometer, but in the case of the gyroscope I didn't get "reliable" data.First of all, the time of stability (the real output when the sensor is still after turning the sensor ON) is pretty slow compare to the accelerometer, only after 1 minute and 25 seconds (for X and Y axis) and 6 minutes and 10 seconds (for Z axis) I can consider the output to be stable.The thing that is really troublesome for calibration purposes is the repetability of the gyroscope, after the output of the gyroscope is "stable", it is not the same after turning the sens

Hi,I'm trying to make first steps in ST32CubeIDE with some knowledge of C/C++. As a playground I want to communicate with Accelerometer in LSM6DSOX using driver described in document:"DT0141 How to import STMems_Standard_C_drivers in an STM32CubeIDE project.pdf".So, created new project.Added in Software Packs Component Selector an LSM6DSOX - SPI (v1.8.0): Configured SPI1 in mode Full-Duplex Master and X-CUBE-MEMS1:

Hi everyone,I am using a STWINKT1B and I am trying to evaluate its power consumption while operating. The Wifi communication always works well when I power the board by the battery or the USB port but never when I plug it to my voltage source (5V on J5). To be precise, I'm using the STWIN BSP drivers available here  and es_wifi firmware by freertos available here. For the Wifi module to be initialized it requires that it first raise a data ready signal which is on PE11.Unfortunately when the board is powered though the external source, this signal is never raised and the Wifi connectio