MEMS (sensors)

There are a lot Sensors but lsm9ds1 is not listed!regards

API Status: -6 : Range error ===============================//my code.....  if(Status == VL53L0X_ERROR_NONE)  {  //   printf ("Call of VL53L0X_StaticInit\n");    Status = VL53L0X_StaticInit(pMyDevice); // Device Initialization    print_pal_error(Status);  }    if(Status == VL53L0X_ERROR_NONE)  {  //   printf ("Call of VL53L0X_PerformRefCalibration\n");    Status = VL53L0X_PerformRefCalibration(pMyDevice,     &VhvSettings, &PhaseCal); // Device Initialization    print_pal_error(Status); //-> API Status: -6 : Range error  }.....VL53L0X_Error VL53L0X_PerformRefCalibration(VL53L0X_DEV Dev, uint8_t *pVhvSetti

Hello, everyone!As I was following the polling example on GitHub with the STM32 drivers for the LSM9DS1. I noticed that, during the configuration, reading the Accelerometer & Gyroscope registers, the WHO_AM_I read value was 0x28h, instead of 0x68h. The reading of the magnetometer correspondent register (WHO_AM_I_M) returns the expected value(0x3Dh).After a few tests on altering the code, I noticed that I had to read it twice in order to get a correct reading, exactly as follows:lsm9ds1_id_t whoamI; lsm9ds1_dev_id_get(&dev_ctx_mag, &dev_ctx_imu, &whoamI); lsm9ds1_dev_id_get(&dev_ctx_mag, &dev_ctx_imu, &whoamI); if (whoamI.imu != LSM9DS1_IMU_ID || whoamI.mag != LSM9DS1_MAG_ID){ while(1){ return 0; } }I tryed also adding a delay between the the initialization of the device and the register read process (up to 2 seconds), to no avail. Here, I was hoping that there was the need for a Boot Ti

Ultimately, I would like to know where I2C commands are described in order to re-write my own I2C R/W function according to my hardware. First I woud like to play with the entire API to get familiar with it. The file ranging_sensor_comms.h is not included in the STM32 53L3A2 expansion board software. The vl53lx_platform.c is completely re-written,and the project only uses this file frome the API and none of the other files. Thank you for your help

Hi everyone. I try to integrate VL53L3CX range sensor in an applicaction using nRF microcontrollers. I am using the API 1.1.4. I would like to test a I2C read first, so I edited the function VL53LX_ReadMulti() in file vl53lx_platform.c as follow :VL53LX_Error VL53LX_ReadMulti( VL53LX_Dev_t *pdev, uint16_t index, uint8_t *pdata, uint32_t count) { VL53LX_Error status = VL53LX_ERROR_NONE; uint8_t *pBuffer = pdata; //uint8_t DevAddr = pdev->I2cDevAddr;   status = (int8_t)bus_i2c_ReadData( pdev->i2c_slave_address, pdata, pdev->i2c_slave_address|1, count);   return status; }The function I have to use is implemented as follow :/** * @brief Reads Data from I2C communication bus. * @param[in] DevAddr: Device address. * @param[out] pBuffer: pointer to the buffer that receives the data read from the Device. * @param[in] ReadAddr: Device's internal address to start reading from. * @param[in] DataSize: number of

my mcu is STM32F730R8Txsensor: LSM9DS1use CubeMx gen code, with Makefile(under linux env)I use lsm9ds1_reg.c as sensor driver fetch raw data, and it worked fine.then, do the following as MotionFX lib documents:MotionFX_initialize()MotionFX_getKnobs(&knobs);MotionFX_setKnobs(&knobs);MotionFX_enable_6X(MFX_ENGINE_DISABLE);MotionFX_enable_9X(MFX_ENGINE_ENABLE);I can run the code, and i can get ther version code by MotionFX_GetLibVersion(): ST MotionFX v2.4.1But, if i enable MotionFX_propagate() in the following routie, MCU will enter Hard Falut ISR...if (is_imu_xl_gy_drdy()) { MFX_input_t raw; MFX_output_t out; imu_getdata(&raw);   // curr_tick = HAL_GetTick(); // deltatime = (curr_tick - last_tick)/1000.0; // last_tick = curr_tick; deltatime = 0.01;   if (0) { len = snprintf

I am using the LSM6DSOX built in tilt function. Currently it gives results for tilting along 3 axis. Is there a way to limit it to one axis?

Hi, I have a LIS3DH accelerometer which I have set up to detect movement by generating interrupt by setting the INT1_CFG register. I also want to detect the orientation of the accelerometer but I do not want both at the same time ( It would be great if I could detect both). I want to alternate between the settings so that when I go to sleep I turn on movement detection with interrupt enabled and when I wake up I want to disable the movement detection and check the orientation. When I switch from movement to position, the readings are all random and movement detection is still enabled. So far, I have not had any luck in doing both besides power cycling the accelerometer and manually changing the settings for each, which is not feasible in my case. I would appreciate any help regarding this.Thank you.

I am using the IMU LSM9DS1. However, when developing the library for communicating with the IMU and reading the accelerometer values, I noticed something odd.According to the datasheet, the sensitivity of the accelerometer is given by: which normally can be given by the formula: scale / 32768, where scale = 2,4,8,16;This formula works for all scales except for 16g. In this case, the formula gives 0.488 mg/LSBSo, I wanted to know if the formula that I am using is wrong or if the datasheet is wrong, because according to the formula, the 0.732mg/LSB sensitivity corresponds to 24g. Also when using the sensitivity value of 0.732mg/LSB I can obtain readings of 20gThanks in adva

i am currently working using LIS2DH12TR sensor, on which i had configured the below detections on interrupt 1, how to differentiate between different detections(freefall, motion and tampering detection)when they are configured on the same interrupt?whether there are any specific status registers to read the applied threshold value over the sensor?

Which board should supply the power to the system?I am using AMICAM1 to power the NUCLEO-L476RG following the instruction. AVDD is provided by AMICAM1 because the SB57 on NUCLEO-L476RG has been removed. Will a powered AMICAM1 module also supply power to CCA02M2? Can both analog and digital mic modules be connected to PC through the onboard USBs at the same time?Any conflicts in connector pins?

Hi,We are using ISM330DLC MEMS sensor in our project and trying to interface sensor using X-CUBE-MEMS1 library. In configuration parameters, SPI module is not visible. Please suggest how to configure X-CUBE-MEMS1 library to interface using SPI module.Regards,Rajesh K.

I wish to make changes to a STEVAL-STWINKT1 which I bought, in other words I have to redesign to suit my application. The example projects works fine. I want to know from experts, is there a tool which will help me to write program or copy the example. Or any video which explains the step by step procedure?Thank you in advance, your advice will help me as this task looks very complicated. If I have to write drivers from the scratch, hope not.

I'm using motion fx library to get orientation of the device. I'm putting the device running sensor-fusion on a cricket bat. If I play a very fast swing, the orientations are becoming inaccurate. if I wait for some time holding bat in standstill position, orientations are coming properly .gyroscope reaching its full scale value when I swing the bat (2000 dps)I'm running sensor-fusion at 100 hzusing STM32L476JGY6 mcumotion fx library version 2.0.0please help meThanks

I have an application using a LSM9DS1 with the purpose of accurately measuring the rotational speed of a platter spinning at about 33 rpm.I measure the speed by taking readings from the gyroscope every 10ms. I did an initial calibration for offset and slope before that, but I would like to increase the accuracy by correlating the initial calibration with data from the magnetometer also.So I added an initial calibration step by reading the X,Y measures from the magnetometer every 30ms, calculating a heading using atan2(Y, X)*180/PI +180 , and measuring the time it takes to go from heading 50º back to heading 50º again.However, when I look at a log from the headings obtained, I see a not completely linear sequence of values, sometimes going back for 1,2 steps, before going forward again. Something like: 34, 36, 38, 33, 39, 40, 50, 45, 55, 60.....Any idea of what may be causing this ? Maybe I'm trying to take readings too fast ?

Hi! My name is Vincenzo.In the last week I devoted myself to study the example application written by ST for the ToF VL53L1 (VL53L1CB). I was interested in being able to better understand the MULTIZONES_SCANNING mode. In the example, the field of view of the ToF is divided into 2 zones. Based on this, I am attempting to write an application similar to ST's 2D LIDAR. I would like to divide the FoV of the ToF into 9 zones. At first I thought I had succeeded, but lately I noticed that periodically, some zones detect a particular high ambient value. The curious fact is that this "anomaly" of the ambient value seems to depend on the number in which the field of vision is divided. For example, if I divide it into 10 Zones instead of 9 I don't run into this anomaly. If I divide it into 8 I encounter the anomaly again, but it appears in a reduced form, but more frequently. In the most interesting case, the one in which I divide the FoV

Hi ,. I uses LIS2DW12. I have seen that 6D orientation angle is from 45 or 50 degrees only. So setting an interrupt for this wont be useful for my purpose.I would like to wake up on minimum angle that I sets, say 5degree/10 degree . How could I achieve It. Is there any pseudo code available for that Like one is for 6D orientation (DT0097)?. When checked the STmem driver, I have seen that WAKE_UP_THS(34h) API is available for setting threshold values. How I can get interrupt for a the tilt value I set (say 10 degree) for only one axis by setting threshold in this register. Also how to calculate to and from mg to degree(getting from raw value and setting to threshold)?.Awaiting for the earliest response.regards,SV

Hi all,I opened a issue on github about it:https://github.com/STMicroelectronics/STMems_Android_Sensor_HAL_IIO/issues/6Once i add the STMems_Android_Sensor_HAL_IIO library on my system the sensor service crash.01-01 00:02:12.558 2358 2358 F DEBUG : Revision: '0' 01-01 00:02:12.558 2358 2358 F DEBUG : ABI: 'arm' 01-01 00:02:12.558 2358 2358 F DEBUG : pid: 2355, tid: 2355, name: android.hardwar >>> /vendor/bin/hw/android.hardware.sensors@1.0-service <<< 01-01 00:02:12.558 2358 2358 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x1c 01-01 00:02:12.558 2358 2358 F DEBUG : Cause: null pointer dereference 01-01 00:02:12.559 2358 2358 F DEBUG : r0 00000001 r1 00000000 r2 af5905c8 r3 00000000 01-01 00:02:12.559 2358 2358 F DEBUG : r4 af5905c8 r5 0000005a r6

Hello! Thank you in advance for your help =)I've just bought a STEVAL-BCN002V1B (BlueNRG - Tile), with the host board to Flash and debug, and i would like to know how i can easily program it. Questions:I've found this video where a STEVAL-IDB007V1 is programed using the BlueNRG - 1 navigator. Is there anything similar for my board? If yes, could you please introduce me to the first steps?How can i access examples and send them to the board? I would be very happy if i could do anything similar to this

Hi ST Micro, I have tested the X-CUBE-53L1A2 software with X-NUCLEO-53L1A2 expansion board, I cannot get ranging measurement above 4m using Lite Ranging or Autonomous mode (16x16 ROI). Then I tested the X-CUBE-53L1A2 software with X-NUCLEO-53L1A1 expansion board, it works too and provide the same results as X-NUCLEO-53L1A2.May I know is the STM ToF sensor (VL53L1) comes with X-CUBE-53L1A2 is newer generation compared to VL53L1X? Because both the A1 and A2 expansion board return the same Model ID (0xEA) and Model type (0xCC)Is it the main difference between these two sensors is VL53L1 can provides accurate ranging above 4 m (up to 8m) and can work at faster speeds (60 Hz)?How to check if VL53L1 is better than VL53L1x? and how to fully utilize VL53L1? We wish to get the latest generation of STM ToF sensor, appreciate any advices or tips.Thanks.CP

Hello ST community,I am exploring the use of LIS2DH12 for an application where I need to detect positive peak of 200 mg and negative peak of -150 mg. For this, I am planning to use the two interrupts INT1 and INT2 for positive and negative peak detection. However, as per interrupt generation logic for this sensor, only the absolute value of threshold value is considered. How can I use this sensor to detect both positive and negative peaks? Can you please provide your inputs on this?Thanks in advance,Anusha

Hi Everyone, Is there any example for FTP Client on STWIN eval board? If yes, please share. Thanks much in advance@Eleon BORLINI​ any suggestion from you?Is there any Third Party library which I can use?Kind RegardsChandra

Hi,my goal is to use custom template files in AlgoBuilder. For instance have an extra function or class in the main.c file. Therefore I would like to create a new firmware template for NUCLEO-L476RG as described in en.UM2689.I am working with CubeMX, since in CubeIDE it is not possible to change the "application structure" to "Basic".I am following the description in en.UM2689, setting the application to "IKS01A3_AlgoBuilder_Template", etc. After generating the code, I copy the whole project location to C:\Users\USER_NAME\STMicroelectronics\AlgoBuilder\FirmwareTemplate\.Then I restart Algobuilder and try to create a new design for the new target. However, the new target is not available in the dropdown list as shown on Figure 29.: Is there anything, I am missing? If I go to C:\Program Files (x86)\STMicroelectronics\AlgoBuilder\ProjectTemplate, I see a target.xml file describing different targets.

I'm using the following driver: STMems_Standard_C_drivers/i3g4250d_STdC at master · STMicroelectronics/STMems_Standard_C_drivers (github.com)You can ignore the details of the driver code but the important thing to note is thatThe driver requires you to write your own "platform_read" function since this is platform dependent. I am using SPI and this is how my implementation looks like:static int32_t platform_read(void *handle, uint8_t reg, uint8_t *bufp, uint16_t len) { uint32_t msTimeOut = 1000; reg |= 0x80; //I3G2450D_CS_ENABLE; HAL_GPIO_WritePin(MEMS_CS_GPIO_Port, MEMS_CS_Pin, GPIO_PIN_RESET); HAL_SPI_Transmit(handle, &reg, 1, msTimeOut); HAL_SPI_Receive(handle, bufp, len, msTimeOut); //I

Hi,I need to get accelerometer data with a frequency of 100hz and I'm looking for the sensortiles STEVAL-STLKT01V1Looking at the documentantion is not clear to me what is the data sample rate they have by default.Here in the community someone mentioned a sampling rate about 50hz, but if you want to change it you have to modify the firmware, is that correct? This imply working on low level C code and compiler?As an alternative I'm evaluating also the STEVAL-STWINKT1 , is pricey but If I'm correct is a sensortile specific for iot industry with a wideband vibrational sensor and wideband accelerometer. Still I can't find in the docs what is the default sample rate. Can someone clarify this? Since I