MEMS (sensors)

Can anyone provide a documentation over integration custom ml algorithm in ISPU.If I have a machine learning model like tflite or onnx how can I deploy it in ISPU

Trying to get the lowest power out of this device, but it seems to draw at least 900uA of current when even the accel and gyro are disabled. Any suggestions on how to get the current draw of this device lower? Here's my setup:Custom PCBnormal current draw without IMU 0.1mAnormal current draw with IMU and below settings: 1mAConnections4-wire SPI bus w/ CS (shared with other IC with separate CS)pins 2, 3, 6, 7 GNDpins 5, 8 to 3.3Vall others NCFirmwareIMU gets turned on with ODR 12.5 for accelerometer and gyroI2C gets disabled for SPI onlyAccel and Gyro power mode set to 1 (HP off)a few samples are readIMU ODR set to 0 for accel and gyroread accel and gyro values onceGo to sleep (1mA current draw)I can confirm that by removing the IMU the current drops to the expected 0.1mA. Any ideas as to why it's consuming so much current, relatively speaking?

I'm trying to make a demo with the ispu chip ism330is and the STEVAL-MKBOXPRO the issue is I can't find a suitable firmware for the tilebox pro that is compatible with the ispu and allows me upload the compiled UCF program into the chip. Below is a screenshot of the current firmware I'm using FPSNS DATALOG 2 in which it shows the ispu as unknown and if I try to upload the UCF it's just gets stuck! 

Hi, I noticed that, on MEMS Studio, whenever a block is repeated inside a subdesign it gives an error when building. As an example to represent this, I've created a subdesign "A" where I input the acceleration sensor of a X-NUCLEO IKS01A3 and i output the results in a graph as shown in the next image.The subdesign "A" uses a demux, adds to every output its current value with the previous one and mux it back again.The given error references to undeclared variables of the repeated blocks as shown below:Any advice on how to prevent this from happening?Thanks in advance 

Hello, I'm learning how to use stm32 hardware and how to program it and today i connect the X-NUCLEO-IKO1A2 to my board (Nucleo-GO71RB) and installed the inucleo software,  i did everythink like te st video said, but for some reason the software doesn't detect the sensors board, someone have some advices or warnings to give me?

Hi all,Could you show me the temperature accuracy of LIS3MDL ?Thanks all,

Hello experts,I am using rock chip board with android 12 on it along with the sensor lsm6dsox connected on i2c2.I have added the driver and compile the Linux and then build android images.After booting I can see device is detected on i2c and probed successfully, now when I tried to get the same sensors list at android level I get 0 sensor device listed.below are the probe logsrk3568_s:/ # logcat | grep lsm01-01 12:00:00.830 0 0 I st_lsm6dsox_i2c 2-006b: Linked as a consumer to regulator.1701-01 12:00:00.831 0 0 I st_lsm6dsox_i2c 2-006b: Freq Fine -262 (ts 25262)01-01 12:00:03.552 0 0 I st_lsm6dsox_i2c 2-006b: MLC loaded (1) MLC 1 FSM 0001-01 12:00:03.556 0 0 I st_lsm6dsox_i2c 2-006b: Device probedAfter checking online I get below link from support teamhttps://github.com/STMicroelectronics/st-mems-android-linux-sensors-halI followed the same link with multi-hal configuration as well as with HIDL configuration but no sensor is listed in dumsys sensorservicerk3568_s:/ # dumpsys sensorserv

Hi,we have designed a custom board that includes a STHS34PF80 but after triggering a one-shot acquisition, the DRDY bit is never set and reading from the TOBJECT_x and TAMBIENT_x registers without waiting for DRDY only returns 0. We are interfacing the sensor using I2C from an nRF52 SoC.Implemented procedure:Powering up the sensor (+ wait for 500 ms)Enabling block data update (Reg: 0x20, Data: 0x10)Triggering Acquisition (Reg: 0x21, Data: 0x01)Waiting for DRDY bit to be set (Reg: 0x23), Alternatively: Wait 25 ms and reading registers 0x26-0x29 directlyThe sensor ACKs the data transfers so I assume that in terms of the hardware everything is fine, WHO_AM_I (0x0F) correctly returns 0xD3.Am I missing something?Thank you very much in advance!   

Hello,First forum post so I apologise if I miss any key information. I'm trying to use NUCLEO-G474RE to test out the functionality of MotionAC using CubeMX to generate the program structure and Clion to edit it. All I am doing right now is trying to call:MotionAC_Initialize(1); However I get back that:undefined reference to `MotionAC_Initialize'This lead me to add the following to the CMake file, which I feel like I should not have to, is the CMake file generated by Clion or CubeMX? (a very basic question I know but I'm new to this) It's also of note that I enabled hardware floating point in the make file as well.target_link_libraries(${PROJECT_NAME}.elf ${CMAKE_SOURCE_DIR}/Middlewares/ST/STM32_MotionAC_Library/Lib/MotionAC_CM4F_wc32_ot_hard.a)  After adding that line it pulls in the .a file (I'm working on macOS) it seams to throw an error inside the library. in function `MotionAC_Initialize':motion_ac.c:(.text.MotionAC_Initialize+0xbc): undefined reference to `Mot

我想知道LIS3DH的三种工作模式是什么？我收到了两份文件，一份是高分辨率模式、正常模式和低功耗模式，另一份是关机模式、正常模式和低功耗模式。我比较了两种模式的寄存器配置。低功耗模式相同，第一个数据中的高分辨率模式与第二个数据中的正常模式相对应。你能给我一个关于这个问题的具体解释吗？

Hi @Federica Bossi , I have a question about timestamp and the external sensor event.According to the application note of LSM6DSO (image above), timestamp's register is written when main sensor or external sensor event occurs. I have no problem with main sensor event because it seems like the timestamp register is written when the new data from accelerometer and gyroscope is ready to be read. However, I am unclear about the external sensor event since I wouldn't directly be polling data from the external sensor but through LSM6DSO's sensor hub.My questions is, for instance, assuming I will be reading timestamp data directly from the timestamp register on LSM6DSO, if I have LIS2MDL connected to LSM6DSO as sensor hub slave, does it mean that the timestamp register will be filled with data when the data from LIS2MDL arrives at LSM6DSO's FIFO through sensor hub operation?Thank you,

Hello,I am using a I3G4250D gyroscope and would like read the temperature. Currently, I read 246 (in decimal) in my register 0x26.In two's complement, it is equivalent to -9.   Then I have to multiply by -1 so -9 * -1 = 9°C (I am not sure)But It is the summer, and 9°C for a measure of temperature is not possible. I read 10 times the datasheet but no one information to convert the data from register into °C.Can you help me please ? It will be great to edit the datasheet to give a formule to transform the raw data in °C.ThanksTom

I have added Digital Inclinometer application of X-Cube-MEMS1(9.6.0) on stm32f777zit6 wherein I want to read the rotation(angle) from LSM6DSL device. I have added all the required component files and Motion_DI library to the workspace.Reference taken from: X-Cube-MEMS1>>9.6.0>>Projects>>Nucleo_F401RE>>Application>>IKS01A2>>DigitalInclinometer I am successfully able to configure the LSM6DSL with i2c1 of stm32f777zit6 and able to read the "who am i".But my MotionDI library is not getting initialised. During debug, my code gets stuck at function MotionDI_manager_init((int)ALGO_FREQ);.  Code is not working after this.Kindly suggest what can be the issue?? RegardsALPS  

would you please help to review the attached log and give some advice to customer?Thanks.Attached is the test log data, test conditions:1. The device is fixed on the desktop without moving or shaking. 2.2. The CPU reads the X/Y/Z data of the Sensor via I2C, and found that the X-axis data is decreasing, but the Y/Z data does not change in a wide range. 3.3. CPU platform: RV11264. Kernel version: linux 4.19, the kernel is a little change: linux is used in version 4.19, because in the L4.19 kernel to read the data also has anomalies, the customer ported the L5.10 version of the lsm6ds3tr-c driver.[root@RV1126_RV1109:/userdata]# . /test.sh[0] accel: -714 -1780 -16310 anglvel: 83 -438 -118[1] accel: -718 -1781 -16323 anglvel: 84 -437 -121[2] accel: -719 -1781 -16317 anglvel: 85 -437 -118[3] accel: -727 -1783 -16320 anglvel: 80 -438 -116[4] accel: -727 -1783 -16317 anglvel: 83 -437 -119[5] accel: -732 -1786 -16311 anglvel: 86 -438 -117[6] accel: -738 -1782 -16309 anglvel: 79 -437 -117[7] acc

I am measuring pressure using the LPS28DFW under conditions where the gas flow is approximately 70°C with a relative humidity of 80-100%. During measurement under these conditions, I encountered an issue where the sensor stops working. However, the sensor resumes normal operation once it is sufficiently dried. According to the datasheet, the sensor is expected to function under these conditions, but it currently does not. I would like to inquire about the possible reasons for this issue.Even in the presence of liquid droplets, the gel should prevent these droplets from reaching the MEMS, allowing it to function normally, but this is not happening. Could it be that the protective gel on the MEMS is leaking or detaching under these conditions?

Hi,I want to know the best solution to read accelerometer and gyroscope data using the STEVAL-MKI182V2 board with the STEVAL-MKI109V3. At this moment, I can use Unico-GUI to read live all the data from the sensor, but I want to make a AI model to read directly from the sensor and to predict certain movement from the sensor like standing up or seating on a chair for example.Is there a way by using the STM32CubeIDE or the MEMS studio? After opening the MEMS studio, the STEVAL-MKI182V2 doesn't look to be compatible with this program, why ?In STM32CubeIDE there's the module XCUBE.AI but can I feed through the model I'm giving him the data that the mcu is reading from the sensor live?I'm not very familiar with AI stuff so be gentle with me please :)

Hi,I'm unable to connect my STEVAL MKBOXPROA  (SensorTile.Box Pro) to Mems Studio, here's what I get:"board not identified" I tried uploading the DataLogExtended.bin, and it says it programs successfully, but I noticed there's a quick "verification failed" in there, and I still get the same problem as above.Any help on what I'm doing wrong would be greatly appreciated.Cheers,Keith.  

Hi everyone.I'm trying to use a NUCLEO-F401RE, a X-NUCLEO-IKS02A1, and a STEVAL-MKI197v1 and the following software: v3.2.0.4544 AlgoBuilder, v1.25.1.11665 Unicleo-GUI, v1.15.0 STM32CubeIDE, v6.11.0 STM32CubeMX and the X-CUBE-ALGOBUILD and x-CUBE-MEMS1 software packages (everything running on windows 11). First I didnt use AlgoBuiderI selected every sensor each board has on the x-cube-mems1 (package) and build it using CubeIDE (no error or warnings), but the Unicleo-GUI shows only the X-NUCLEO sensors, being unable to switch between (for example) the different Gyr/Acc sensors.If i dont select the board extension IKS02A1 CubeIDE gives no trouble (0 error and warnings) but the Unicleo-GUI doesnt recognice my board and i get stuck here:(note: If i select to list all coms it appears, but shows nothing and cannot start) When I try to create a custom firmware for AlgoBuilder, if I select the Algo custom aplication option without the MEMS IKS board extension. I copy the project

My customer asked me to assess some ST MEMS products using a project he found on Github: https://github.com/STMicroelectronics/X-CUBE-MEMS1/tree/main/Projects/NUCLEO-L152RE/Applications/IKS01A3/FitnessActivitiesThis advised to purchase a Nucleo L152RE, a X-NUCLEO-IKS01A3, STEVAL-MKI196V1 and STEVAL-MKI224V1. I have actually ended up with a X-NUCLEO-IKS02A1 because the X-NUCLEO-IKS01A3 is obsolete and the write-up on ST web site https://www.st.com/en/development-tools/unicleo-gui.html says it can be used. I used the most recent updates to STM32CubeIDE to download and import the FitnessActivities project and compiled it okay, and installed it in the Nucleo L152RE with the X-NUCLEO-IKS02A1 plugged in.This sort of works but the Unicleo-GUI thinks that the X-NUCLEO-IKS02A1 is an X-NUCLEO-IKS01A3 and shows the wrong links to set pictorially, with nothing readable on the screen.Will this set-up work with the current set of equipment? I am interested in assessing both the optional sensors I li

LSM6DSOX is a really powerful chip for detecting events, but i also wanted to get quaternions out of it without having to do any math on raw IMU data.   So this is what i found Example  IMU driver  Register 59H - TAP_THS-6D,  You can enabled 4D/6D position.   This will trigger events from register D6D_SRC 1Dh But this just give you a general direction on where your going.  It would be more useful if i had just a quat i could grab at a given frame rate.  Is that possible?  

Hello,we use STHS34PF80 sensor as little animals detector (FOV ~ 20cm) and we have problem with false motion detection on outside. When we have sunny day the sensor goes crazy and output random MOT_FLAG signals. We have try to change LPF_P_M and LPF_M filters but without success. Also we try to change motion threshold and motion hysteresis also without success.Is any solution for this problem?Thanks in advanceAdam Socha

I have a big issue with the STEVAL MKSBOX1V1. I was making some attempts to work with the Vibration Monitoring Example (made up of "Training" and "Compare" sub-processes). After having successfully run the example on the firmware preloaded on the SensorTile.box, I made some changes to the examples in order to stream data over Bluetooth, so I uploaded a custom firmware. Af this the SensorTile proposed to me to upgrade to firmware 3.4.9, so I accepted it and the new firmware was correctly uploaded. I noticed however that the example didn't work correctly anymore, since the "switch lamp" that should be light-on only when an anomaly vibration was detected, was always lighted on after the firmware upgrade. So I checked the possibility to swap to previous firmware version, but no possibility was provided within the app and on the ST site, associated to the  STEVAL MKSBOX1V1, I found only one firmware with description "SensorTile.box firmware OTA function restore". In the details "T

does MEMS studio support STEVAL-STWIN KT1B board ; cause according to the UM (https://www.st.com/resource/en/user_manual/um3233-getting-started-with-memsstudio-stmicroelectronics.pdf) only STEVAL-STWIN KT1 Hardware compatible (not with full/reduced sensor evaluation) just for algobuilder functionality.

I am designing to mount LPS25HB on the board.Communication is I2C.Please help me with the connection of Pin 7 (INT_DRDY).Is this pin an open pad? Or does it need to be connected to GND?

I have 4 LIS2DW12TR accelerometers connected to an Seeed Studio ESP-32 S3. The accelerometers get extremely hot when they're connected to 3.3V. They are not recognised with an I2C scan.The accelerometers are connected to 2 pairs of SDA/SCL pins. Each accelerometer has the same layout, save the SAO pin which sets the I2C address.They each have an LED connected to show that the accelerometers are on.They're connected as follows: The LEDs don't turn on but the accelerometers get extremely hot.Thing's I've tried so far:Did a continuity test with a multimeter (and very fine needles) - all the routes are connected as the schematics show, none are shorted.Removed R9 - the accelerometer became even hotter.Added a 27kΩ resistor to limit current to 100uA (data sheet asks for 90uA). I chose 27kΩ by measuring resistance between the 3.3V power route and the ground plane - it was 11kΩ. `27kΩ ≈ (3.3V/90uA) - 11kΩ`I'm not sure what else can be causing the over heating, or what i'm missing here. This