MEMS (sensors)

Hello, im having some issues with lis3dh data. So im trying to configure and read data from sensor, but its invalid. When i read my buffer L values that are 0 2 4 they seem right: But when i try to connect the data or even read 1 3 5 value that are H, its starting sending some values that are 100% incorrect. Im not moving sensor in any direction. These are H value. When i connect them. x = buffer[0];x |= ((uint16_t)buffer[1]) << 8;y = buffer[2];y |= ((uint16_t)buffer[3]) << 8;z = buffer[4];z |= ((uint16_t)buffer[5]) << 8;doing sth like this the values jump from 32k/16k and 0. I have no idea what's going on. Im just sending adress to X_L with setting 1 MSB for auto increment. Ofc, ive configured sensor CTRL_REG to turn on normal mode 100Hz XYZ axis ON and 2g. And i have some question about FIFO too. I've seen some examples from github. To be precise: lis3dh_multi_read_fifo.cAnd ive set it up for my board. Same configuration,

Hello, I am experiencing significant challenges with programming the SensorTile Box Pro. I successfully loaded the base firmware STSW-MKBOXPRO Expert Mode v1.1.1 and managed to retrieve data from the accelerometer, gyroscope, magnetometer, and temperature sensor via USB. However, I am facing two issues: 1. When I attempt to add microphone data to the other sensors' data flow, I encounter a problem. After uploading the new flow, which includes Fourier-transformed microphone data, the SensorTile no longer appears among the devices connected via USB. Could you please assist me with this? 2. My second issue concerns data saving to an SD card, which does not seem to be working. Despite leaving the SensorTile Box running overnight to log data, the newly created output.csv file on the SD card is timestamped "31/12/2016 at 13:00" and is only 1KB in size. When opened in Excel, the file is empty except for the columns labeled by data type. I also tried using the Datalog2 firmware,

Hi,  I want to know the shock survivability of the pressure sensor LPS27HHTW but I didn't find it in datasheet or application notes.Do you know an application note or data about its shock resistance Thanks for your help   

I couldn't find information about the topmaking for the nano sensor LPS22HB on the datasheet, I need to implement a visual inspection for this IC.Does anyone knows where I can find this info? 

Hello everyone,We manufactured about 100 boards for a pre-production run using the LIS2DTW12, and at room temperature, the boards are all over the map with +/-3°C accuracy, nowhere near the "typical" +/-0.8°C as stated in the datasheet.I've already seen the other post regarding temperature accuracy issues for the LIS2DTW12, but I did not see a resolution or an accepted solution in that post, so to me at least the problem was not solved.Our production volume is 10k+ a year, and we've selected this part because of the temperature accuracy features. I know the data sheet does not show min/max for temperature accuracy, but on a sample of 100 boards, the sensor is nowhere near the "typical" values.Also, I noticed a large temperature variation with the supply voltage: on the EV board, if you change the VDD from 1.8V to 3.6V (using the Advanced Features) the temperature readings (in Data panel) are jumping up by 2°C!There is nowhere in the data sheet any information regarding the temperature

Hi,I want to connect the microphone feature to my raspberry pi so that I can extract the data and put it in databases. Only when I connect my SensorTile.box (STEVAL-MKSBOX1V1) with my Raspberry pi 3 Model B+ I can see the standard features but not the microphone feature. I flashed the FP-SNS-ALLMEMS1 firmware to my sensor and followed the Getting started with the BlueST protocol and SDK documentation to write my code. Here's the output I get:guest@raspberrypi:~ $ sudo python3 mic_test.pyCreating Bluetooth ManagerdoneScanning Bluetooth devices...Discovery started.New device discovered: AM1V410.Discovery stopped.[<blue_st_sdk.node.Node object at 0x7639d370>]Connecting to device: AM1V410 (ea:eb:d5:a3:cf:fd)Device AM1V410 connected.Available features:GestureActivity RecognitionTemperatureTemperatureHumidityPressureMagnetometerGyroscopeAccelerometername 'SCANNING_TIME_s' is not definedAvailable features:GestureActivity RecognitionTemperatureTemperatureHumidityPressureMagneto

Hello,I would like to know the thermal resistance of the accelerometer part no:AIS328DQTR.Let me know your input!Regards and ThanksMadhu

I think signal delay library does not work on MEMS Studio.I made an example code to show temperature values from a nucleo-L476RG and x-nucleo-IKS01A3 setup.The code should show the actual value and a delayed one:But it gives the following error:This exact situation was replicated on AlgoBuilder software and worked without any issue. Any idea how could I work this out?Thanks in advance

Hi,I encountered a problem with a couple of LSM6DSOX employed over 2 years in a mobile Hydraulcs application where the came back to factory for inspection and we saw a significant drift of the offset of the accelerometer (>200mg).Looking at the ASM330LHHXG1 we saw that it is reported in the datasheet the additional information regarding the long term stability (instead of the typical values).I do not understand if the reported values indicate that a component MAY drift during its lifetime up to the reported values or if the values reported refer mainly to the raw data before a calibration step that we do during production. Also, given the absence of the max/min long-term reference in the LSM6 datasheet, would it be correct to assume they perform worse than the ASM330 during lifetime? Or instead are the ASM330 only guaranteed to not go outside max/min specification but on average they perform the same? This discussion is for now limited only to zero-g offset deviation

I have several boards with lis2dh12 and all of them keeps return constant data for lis2dw12_acceleration_raw_get function, every board has its own constant, 0x5050, 0xe0e0, 0x7070.I tried using the STEVAL-MKI135V1 connected to STM3220G-EVAL to test maybe our implementation and board design is the problem, but the same happens, it returns constant 0x6060.We also have some boards that we use lis2dw12 instead, everything else is exactly the same, and it works great with the drivers for this sensor.Here is the code for init and for reading data:void Accelerometer_Init(void) { lis2dw12_device_id_get(&dev_ctx, &whoamI);   if (whoamI == LIS2DW12_ID) { /* Restore default configuration */ // lis2dw12_reset_set(&dev_ctx, PROPERTY_ENABLE);   // do { // lis2dw12_reset_get(&dev_ctx, &rst); // } while (rst);   /* Enable Block Data Update */ lis2dw12_block_data_update_set(&dev_ctx, PROPERTY_ENABLE); /* Set full scale */ //lis2dw12_full_scale_set

Hi,I am using LIS2DW12 to detect walking situation of old man.Old man is walking slowly and little moving, In order to detect this small moving, what and how do I set CTRL register you recommend?I have to check continuous moving state....If LIS2DW12 is not suitable this acton, what do you recommend new chip? BRPaul 

Hi, I have been trying to get acceleration data from an Adafruit LSM6DSO32 with the STM32 Nucleo board F446RE via i2c. I used the STMems_Standard_C_drivers  (GitHub - STMicroelectronics/lsm6dso32-pid at 308cf0e4de0db190c453f3e211b0c40990f1f39b) in order to set the IMU properly. I also use the STM32CubeIDE app to programme the MCU. Despite many efforts, the Nucleo board is not able to recognise the IMU (I checked that a test buffer that prints whether the device is recognised using the whoami register (please refer to the 7z folder attached)), though I double checked the slave address of the components and the connections (please see attached image (IMG_0605.jpg). Could you please help me solve that problem? You can find enclosed a copy of the STM32CubeIDE project. Best regards, Audric

hello,  i'm working on asm330lhh imu sensor and s32k324 nxp microcontroller.Microcontroller : s32k324imu sensor : ASM330LHHinterface : SPI     Question  1. i want to monitor vibration with this imu sensor. how can i implement code give me vibration monitor example code for asm330lhh. example code i checked but it is for ism330is sensor so i want for asm330lhh.2. can i manullay implement code. if yes then what will be need i mean which parameters needs and  what formulas to be need ? 

Hello,I just wanted to inform you that there is a bug in the ST driver for the LSM6DSV16X v3.0.0, available on Github.Function lsm6dsv16x_fifo_batch_counter_threshold_set is wrongly setting the 2 register values, and for COUNTER_BDR_REG1 it is not ensuring that other bit fields are not changed.I stumbled upon this after some time trying to get the BDR counter threshold interrupt to work in a prototype, and thought to share it here.I changed that function implementation to the code below (basically a copy from the LSM6DSOX driver), and it works fine now:int32_t lsm6dsv16x_fifo_batch_counter_threshold_set(const stmdev_ctx_t *ctx, uint16_t val) { lsm6dsv16x_counter_bdr_reg1_t counter_bdr_reg1; lsm6dsv16x_counter_bdr_reg2_t counter_bdr_reg2; int32_t ret; ret = lsm6dsv16x_read_reg(ctx, LSM6DSV16X_COUNTER_BDR_REG1, (uint8_t *)&counter_bdr_reg1, 1); if (ret == 0) { counter_bdr_reg2.cnt_bdr_th = 0x00FFU & (uint8_t)val; counter_bdr_reg1.cnt_bdr_th = (uint8_t)(

Hello everyone! It's my first time with the Sensortile.box, and I'm still not clear on how to connect via Bluetooth. Inside my Sensortile.box, I have the firmware STSW-MKBOXPRO V1.1.0, and from the ST BLE Sensor application, I'm able to see the box. In order to view the data from the PC, I downloaded the UniCLEO GUI and I'm trying to connect the box to the PC via Bluetooth, but unfortunately, without success :( Does anyone know where I'm going wrong? Thanks.

Hi all, I have been playing around with a SensorTile.Box PRO and have had success in uploading the premade "apps" provided in the app itself. However, when I create a custom app in Expert mode and try to upload it to the unit, the app crashes and the upload fails. What is causing this to happen and what can be done to stop this? Thank you!

 I use STM32F401RE nucleo board to detect tilt. I will use same MEMS sensor (ISM330DLC). Three. But I want to control that sensor in I2C1 Bus.  I know setting SA0 to distinguish SAD. it's only possible to two devices.  I need to control three devices. Help me! Thank you. 

Hi team,Can we connect the STEVAL- MKE001A add on board with STEVAL- MKBOXPRO(It has DIL24 sensor adapter socket) to collect the fusion data from LSM6DSO16IS IMU?

Hi team Is there development board available for Head tracking feature?  I have sensor tile box pro also I am able to get fusion output from that, can I get head tracking output from that?

Hi All,I have a prototype pcb with lis2hh12 + stm32 and i want to configure movement detection into the accell but all informations that i found was about ACT_THS (1Eh) and ACT_DUR (1Fh).In my tests accel does not set INT1 (as desired)... Do anyone know how to make INT1 works accordingly with these THS + DUR ?Here are my accel_init(){lis2hh12_pin_int1_route_t pinValue; /* Wait sensor boot time */HAL_Delay(20);/* Check device ID */lis2hh12_dev_id_get(&dev_ctx, &accelData.whoami); // if (accelData.whoami != LIS2HH12_ID)// {// while (1); /* manage here device not found */// } /* Restore default configuration */lis2hh12_dev_reset_set(&dev_ctx, PROPERTY_ENABLE); do {lis2hh12_dev_reset_get(&dev_ctx, &accelData.rst);} while (accelData.rst); /* Enable Block Data Update */lis2hh12_block_data_update_set(&dev_ctx, PROPERTY_ENABLE);/* Set full scale */lis2hh12_xl_full_scale_set(&dev_ctx, LIS2HH12_2g);/* Configure filtering chain *//* Accele

I need to have a part that goes beyond +/-2000 dps.  The new part LSM6DSV32X does just that (4000 dps).  I'm hoping that it is software/register compatible with the LSM6DSO line of IMUs.  That way I could just replace this part (pin compatible) and update the register for the range of the gyro and leave the remaining code the same.    Is that true?  Can I do this?

I want to test X-Nucleo IKS02A1 board with MEMS Studio. I tried to connect to 4 different boards:-Nucleo F767ZI,-Nucleo F446RE,-Nucleo L053R8 ,-Nucleo WB15CC,I always get the same error:Some device is already connectedWhat can I  do. Is this some linux problem. Do I have to load some special firmware before connecting a board to MEMS studio.   

HelloIf a device using LIS2DW12 is fixed in a fixed position, will it be affected by the gravitational pull of the sun or moon and will the gravitational acceleration of each axis change?

I have a Nucleo-F401RE and want to interface with the STEVAL-MKI209V1. I've tried the TiltSensing2_IIS2ICLX and AccelCalibration2_IIS2ICLX examples but none of them talk to the UNICO-GUI, Mems Studio or TeraTerm UART. Any leads? Especially on what firmware is necessary and wiring?

Spikes are present in the data coming from the LIS2DH12 accelerometer when placed in a casing, but when it is in the open there are no spikes. Attached is an image of the 3 axis data plotted from the accelerometer when placed on the table with casing and rotated. I have also added another plot of the same device on air (no movements). Please advice how to mitigate this issue. Thanks.