MEMS and sensors

Hi everyone,I was reading the data from the OUTX/Y/Z_L_A and OUTX/Y/Z_H_A registers. I noticed that if the actual acceleration is some non-zero value, the data will be fine. However, if the accelerometer is stationary, the horizontal axises (which are supposed to  read 0g data) read a value near to 2g or -2g. Here is the example:  As you can see in the diagram, the y and z axises shows some reasonable values for their components of gravity, the horizontal x axis keeps changing from -2g to 2g but not shows the correct reading(0g).Does someone have any clues about this?  

Hi,I am working on interfacing an STM32F405 with the ASM330lhh and have been able to utilize both I2C and SPI communication to the chip. I am able to turn on and read the accelerometer and temperature as well as the status bit become 0x05 but trying to turn on the gyroscope with and without the accelerometer already activated I get no status bit and no data is outputted via the gyro's registers.I am writing 0x11,0x60 to turn on the gyro and reading the registers starting at 0x22. one thing to note is that when turning on the gyroscope while using I2C the entire line breaks after modifying the register, on SPI this doesn't happen but there is no change in the gyro data.

... I'm using ASM330LHH chip, I'm using the SPI communication method, when I initialize the write to these registers, I confirm that it has been written, I go to read the STATUS_REG register, and I find that it has always been 0, and then I go to read the values in the acceleration register, and I find that these values have not changed, what is the problem?

Hi,Can the LSM6DSOX sensor FIFO be utilized as a ping pong buffer? And if it is possible, how can I do that?

 Hello All,My new sensor tile box STB011147 not responding yet all even connected USB power source to it's not responding, I checked the battery was connected, however when I pressed power button no LED are turning on. please let me know how to resolve this issue. 

How would I go about reading data from gyroscope and accelerometer of lsm6dsox IMU in the STEVAL_MKI197V1 that is connected to PC via STEVAL_MKI109V3 motherboard WITHOUT the need to use software like Unico-GUI?  Preferably I would like to have the data be sent to a Putty terminal via the USB that is used for communication between STEVAL_MKI109V3 and PC. Thanks for all help in advance.

What is the type of internal (mechanical) structure of LSM6DSO32 gyro sensor? (a photo of the internal structure would be beneficial). The reviewer asked us about this during the review process, and we couldn't find such information in the manual. Best regards,Dominik Sierociuk 

Hi,I have a STWIN.box starter kit and would like to use it for solar powered periodic vibration (IIS3DWB) data logging into an SD card. What would be the easyest way to do this?For example datalog vibration for 2 minutes every hour into the SD card.Regards,Ivan

Hi, Can you help me to use the LSM6DS0 sensor in the IKS01A3 board with the nucleo f767ZIThanks

I am using the STSW-IMG501 software with the STEVAL-EVK-U0I1 evaluation kit and the STEVAL-56G3MAI1 evaluation board for the VD56G3 image sensor.  I am trying to capture videos of my target application at high frame rates to assess the sensor properties, but I am unable to get the STSW-IMG501 to capture at frame rates equivalent to what is programmed in the VD56G3 image sensor.A short description of applicable frame rate parameters:Line Length - 1236 (0x0300, 0xd4, 0x04)Pixel Clock - 160.8 MHzLine Time - 7.69 us (Line Length / Pixel Clock)Subsampling/Binning Factor - 1 (no subsampling or binning)Ystart - 442 (0x045a, 0xba, 0x01)Yend - 921 (0x045c, 0x99, 0x03)Frame Length Offset - 69Minimum Frame Length - 549 ((Yend - Ystart+1)/(subsampling factor) + frame length offset)Target Frame Rate - 200 HzProgrammed Frame Length - 650 (0x0458, 0x8a, 0x02)Target Frame Duration - 5 msTarget Exposure Duration - 3.5 msCoarse Exposure - 455 (0x044e, 0xc7, 0x01)In order to verify my configuration

hi. I attended a workshop a few weeks ago and had no difficulties using MEMs studio with my X-NUCLEO-IKS4A1.  I needed to move to a new computer and I went through the download process again for MEMS studio and my board (above) is not shown as supported.  The version I d/l'd is newer than the one on the old computer. I feel like I'm missing something obvious .. where do I add support for a missing board?Thanks,-Rich 

Good morning,I'm using the STEVAL-MKI109V3 board associated with the STEVAL-MKI201V2.Is there a source code for using the STEVAL-MKI201V2 accelerometer with the STEVAL-MKI109V3 board?Otherwise there are examples of using the STEVAL-MKI201V2 with other microsprocessors? Thank you.Best regards.Gb2. 

Hello,I have the Nucleo STM32F401RE board, on which I mounted the X-NUCLEO-IKS4A1 expansion board with the removable add-on STEVAL-MKE001A for QVAR signal detection.My first question is: is it possible to acquire the raw QVAR signal using only MEMS Studio, or is it necessary to integrate a firmware solution? By "raw QVAR signal," I mean the data that has not been processed by the FSM, and not the tap or double tap, which serves only as an interrupt.Below are the steps I have followed so far and the inconsistencies I encountered:1. When connecting the board to the PC, the software immediately recognizes it, and using the provided DataLogExtended binary, I can select the devices of interest, including the LSM6DSV16X IMU for QVAR signal acquisition.2. In the register interface, I configured:- The `AH_QVAR_EN` bit to 1 in the `CTRL7` register (16h).- The `INT2_DRDY_AH_QVAR` bit to 1 in the `CTRL7` register (16h).- Wrote the values `(0x10, 0x07)`, `(0x11, 0x07)`, and `(0x16, 0xC0)`.I encoun

Hi,Our customer is integrating LSM6DSM and LSM6DS3TR sensors with QCM2150 platform and stuck in production. This requires Qualcomm SSC architecture driver and configuration for LSM6DSM and LSM6DS3TR , so that we can integrate it into ADSP firmware.Could you please share the below details.How to get SSC driver for LSM6DSM and LSM6DS3TR series sensors.Is there any license required to get SSC architecture driver ?Appreciate quick help or pointers to resolve this.Thanks.

After programming bluenrgm2sp module it is not discoverable in the ST BLE-scanner.I have used the bluenrg2 navigator code.Please help me to find the solution.Thank you in advance.

I am using NRF5340 board for development using the LSM6DSO IMU sensor.Is there any way so that I can write a particular value inside the LSM6DSO sensor in non-volatile form. Please let me if it is possible.Please let me know as soon as possible.

Hey, I am a beginner in all of this and have been trying to change certain parameters for my VL53L8CX sensor such as sharpening percentage, or converting its standard mm data unit to feet or inches, and I really can not figure it out. I am guessing its inside of the vl53l8cx_api.c file but I cant figure out where to, i am assuming, call a function with the new numbers passed into it. I see the get and set functions for each parameter but I don't think you change it in there? Thanks for the help, I am sure its silly question.

  int main( void ) { /* STM32 HAL library initialization*/ HAL_Init( ); /* Configure the system clock*/ SystemClock_Config( ); /* Configure the debug mode*/ DBG_Init( ); PRINTF("\n----------------------Firmare starts here---------------------\n"); /* Configure the hardware*/ HW_Init( ); MX_GPIO_Init(); MX_I2C1_Init(); //MX_RTC_Init(); GNSS_Init(); /* SPI initialization function*/ SPI_Init(); /* Initialize mems driver interface */ dev_ctx.write_reg = IIS3DWB_write; dev_ctx.read_reg = IIS3DWB_read; dev_ctx.mdelay = IIS3DWB_delay; dev_ctx.handle = &hspi2; IIS3DWB_delay(BOOT_TIME); iis3dwb_device_id_get(&dev_ctx, &whoamI); // check the ID of the accelerometer. Default ID: 0X7B PRINTF("\nAccelerometer_ID: %X\n\r", whoamI); if (whoamI != IIS3DWB_ID) while (1); /* Restore default configuration */ iis3dwb_reset_set(&dev_ctx, PROPERTY_ENABLE); do { iis3dwb_reset_get(&dev_ctx, &rst); HAL_Delay(BOOT_TIME); } while (

Back in 2015, I ordered 19 LSM9DS0 boards from Adafruit for a project (which is taking longer than anticipated!).I've recently noticed that the Accel X, Y and Z readings are materially different for some boards when the boards are flat in a common position. Some read X : close to zero, Y: close to zero, Z: close to 9.5, whereas others are all over the place (such as X: -1.4, Y: -0.3, Z: 7.00. or X: 3.36, Y: 7.00, Z: 4.32). It seems as though the orientation of the board no longer aligns with the orientation of the output of the accelerometer.I have a few questions:- What's the design life of an LSM9DS0?- Should I expect some failures of the accelerometer after 9 years?- For the boards that are giving strange readings, is there a way to reset the accelerometer in any way, or to compensate the readings with offsets (and is this level of offset usual?) 

Hello,I'd like to use LSM303AGR temperature sensor and only that, what is the minimal configuration to be able to do that? As I browsed the forum I saw that setting TEMP_EN[1:0] bits to 1 in the TEMP_CFG_REG_A and BDU bit in CTRL_REG4_A is not enough, you also have to set XL ODR in CTRL_REG1_A. Is there anything else needed?

Hello, I'm currently trying to use "STSW-IMG035 Turnkey gesture recognition solution based on VL53L5CX, VL53L7CX and VL53L8CX multizone Time-of-Flight ranging sensors" on my board. I have a NUCLEO-F401RE and XNUCLEO-53L8A1 expansion board. I'm very new at this and I want to be able to get Hand Posture VL53L8 sensor driver to be able to display some output (thumbs up or thumbs down) but I have no idea how to do that. Do I need to load any dataset before I can use it? Any form of help is appreciated. Thank you!

Looking for Sample code to measure the object moving direction and moving speed and size of object using VL53L8CX sensor

Is it possible to check the electrical activity of an AC power cable using Qvar functionality. What type of electrode to be used? What type of input circuitry needs to be designed (input impedance and filtering)?   

I am observing an unexpected reading issue. I am using Calibration and I use a physical distance to Calibrate.  However,  an object right in front of the sensor (1-20mm'ish away) reads a value of 0 (zero).  If I change the Calibration to physical distance + 20 (rough) I get a better measurement of the object when its in front -- I get in fact more of a measurement I would expect.  However,  I would need to calibrate at a distance greater than the physical distance -- which is not what I thought one is supposed to do?