MEMS (sensors)

Hello,I was having fun with the Sensortile.box Pro I bought a month ago. When I reset the device to its factory settings (SensorTile.boxPRO.bin in file en.stsw-mkboxpro-fs.zip) using the STM32CubeProgramming tool, the device blinks the red LED once and cannot be found by the ST BLE Sensor app. This happens for any sample FW.If I click the "Verify programming" checkbox, I get the following message in the log:19:28:09 : Error: Data mismatch found at address 0x08000000 (byte = 0xF8 instead of 0x98)19:28:09 : Error: Download verification failedPlease advice. Thank you,A.

Sir,I am working on the imp34dt05 sensor but how could we configure its parameter.Could u guide us for that.What should be sampling frequency and what is the range of the frequency that it can capture and what should be sampling frequency of pcm and what should be size of pcm output and what should be size of buffer and data size of pdm output captured by the stm32f4 controller?

Currently designing a  low power embedded system for monitoring application using IMU LSM6DS032, tried both low power/normal mode and the ultra low power mode setting on this IMU, but I could not find the significant difference in the power consumption in these modes.Any suggestion on the way I am configuring the IMU in ULP mode would be really appreciated.Steps taken to turning on the Ultra low power modeAccelerometer is powered-down by setting ODR_[3:0] bits to 0b0000 in CTRL1_XL register.Gyroscope is powered-down by setting the bits ODR_[3:0] = b0000 of CTRL2_G register.Setting XL_ULP_EN bit of CTRL5_C to 1.Setting XL_HM_MODE of CTRL6_C to  0.Using the FSR of 4G and ODR of 208Current draw for the MCU interface with IMU is ~2mA  with IMU in ULP/Low-Power mode and MCU in deep sleep. We were expe

I am reading through TN0018 and saw that it is possible to have signal and plane on the bottom layer. Does this apply to flex PCB with 50-150um thickness? 

Hello, We are using the ASM330LHH in a design and are seeing extremely large gyro biases (~250 deg/s). I am trying to figure out what may be causing them; here is some information on the experiment. We collect data while spinning our custom boards (with an ASM330LHH mounted on them) at various rates from 0-800 deg/s on a rate table so that we can calibrate the IMUs. Below I have attached two images of the data collected at the same time (using the same software) from two different ASM330LHH units. Note that in this particular collect, the devices are positioned so that the y axis is aligned with the axis of rotation, but these biases stay regardless of the orientation relative to the axis of rotation. Any ideas what could be causing such a large bias? Unit 1 (exactly as I would expect the data to look)

Hi,I’m using the NUCLEO-STM32F401RE with the X-NUCLEO-CCA02M2 board, which has two MP34DT06 PDM microphones. I want to capture stereo audio using I2S2 and convert it to PCM using the PDM2PCM middleware in STM32CubeIDE.In AN5027 (page 18), a timer is used for stereo mode. This confuses me — since I2S2 can generate the clock and receive data, is the timer still needed to capture stereo PDM signals?I’m new to this domain, so any guidance is appreciated.Thanks!

For special test case, that directed connected IIC's SCL(LUX_TILT_SCL) to GND and kept for 5mins, will this action hurt or damage IIS2DLPC?IIC worked with 100kbps.Work with IIC. We found that after this action/error injection:Sometimes, the sensor cannot response with IIC ACK/no response from sensor.Sometimes, the sensor responses with incorrect axis data. 

Hello, I'm looking for a very high precision inclination sensor. I found this IIS2ICLX. I have some questions on the specifications.1) What is the repeatability of the device?2) From the spec sheet, it might seem like the repeatability of the device is 0.075mg but it's unclear. If that is the spec, can you help me in converting this to degrees?3) Are there other devices that have a higher repeatability? Thanks

Hi,I am trying to read data from my ISM330DHCX using my STM32G491 Nucleo board over SPI3However, I am having trouble understanding the operation of this device, so I would like to explore the answers to the following questions:1) What is the most basic start-up sequence that would allow me to read data from the gyroscope?According to page 37 of the data sheet --> this is all that is needed to operate in SPI mode:SPI interface: I2C_disable = 1 in CTRL4_C (13h) and DEVICE_CONF = 1 in CTRL9_XL (18h).Is there anything else that must be done? 2) Is my SPI3 configured properly for the ISM330DHCX?CPOL = HighCPHA = 2 Edge

Dear community,I am selecting an accelerometer to use in a project and I am looking for some advice.Essentially I am looking for the highest performance accelerometer (regarding noise) in the STM portfolio.The sensor requirements are: ~±2g scale support, I2C support (preferred), FIFO buffer, at least 1 (absolute) threshold interrupt. I am currently using the LSM303AGR in my design, which I am comparing to the LIS2DW12 and LSM6DSV16X as a potential replacement. For the comparison (see table), the most important factors are noise and active current consumption in high-performance mode. Note that the LSM303 and LSM6 are not pure accelerometers, since they offer additional functionalities (i.e., magnetometer & gyro). I am only interested in the performance of the accelerometer part.  Sensor

Hi everyone,I'm starting a project using the STEVAL-MKI109D motherboard with the following sensor adapter boards:STEVAL-MKI247A STEVAL-MKI240KA My main goal is to collect sensor data wirelessly for analysis, rather than being tethered to a PC with a USB cable. I'm trying to figure out the best approach and would appreciate some advice on the options I've considered.

Hi! I inherited a project and we're seeing strange accelerometer values and I'd like to get a sanity check on my configuration. when Idle and flat, I see 1g on Z, 0g on X and Y. When my device is moving I see peaks on many axes beyond 1g, eg 2.5 on X or Z, and it does not seem real. Here is downsampled data from a log file. X (brown) goes from +1.5g to -1.5g, Z (gray) is over 2.3g. I am not expecting such numbers during a short banked turn at ~15 mph This is my init. I'm expecting 104Hz data rate, 4g acc scale, 1000dps gyrp scale m_dev_ctx.write_reg = (stmdev_write_pt

Hi ST guys,I played with the LIS3DH accelerometer options and don't really see difference in interrupts.Can you explain the differences between 6D and no 6D because as per my understanding of AN3308 the AOI + 6D option is position detection which is where I should get an interrupt when position of device is configured.ex : I put 0xF4 in INT1_CFG to enable AOI + 6D + ZHIE, ZLIE and YLIE and it doesn't seem to change when I put 0x34The documentation is also confusing regarding CTRL_REG6 (25h), can you explain  :I2_IA1 Enable interrupt 1 function on INT2 pin.  (is it configuration of INT1_XXX ?)I2_IA2 Enable interrupt 2 function on INT2 pin.  (is it configuration of INT2_XXX ?)I2_ACT Enable activity interrupt on INT2 pin. (What is thi

Hello All,We are adding the IIS2MDCTR magnetic sensor in our existing product.The concern we share is that this is a magnetic sensor and will it affect the MRI machine or its results when installed in the MRI Room.Our product is an Emergency Exit Light a manadatory product but as of now without the magnetic sensor. Please share your feedback. 

Hello!!I just started with the ASM330LHHX DIL24 module for the X-NUCLEO Boards, the module is listed as compatible with the IKS4A1 (sensors below):I have read some documents related to the procedure to make it work but it's an "old" document (see below), I look for general advice:Once the module is inserted do I need to configure any jumpers in the XNUCLEO board?If there is no need to modify jumper configuration on the board, does that mean that all configuration is done via software, correct?Once I gain access to the ASM330, the rest of the sensors onboard the IKS4A1 will be ava

Hi,I am follow up on the query i am posted "https://community.st.com/t5/mems-sensors/integrating-the-sths34pf80-proximity-mems-sensor-using-the/td-p/823236".I am integrating the STHS34PF80 proximity MEMS sensor using the STMicroelectronics HAL from the following repository:https://github.com/STMicroelectronics/st-mems-android-linux-sensors-hal/tree/masterHowever, when I run the HAL binary, I encounter the following error:"root@imx8mp-lpddr4-evk:/st-mems-android-linux-sensors-hal/linux/build# ./stm-sensors-linuxfailed to open config file [/etc/stm-sensors-hal/config], using defa

Hi,I am integrating the STHS34PF80 proximity MEMS sensor using the STMicroelectronics HAL from the following repository:https://github.com/STMicroelectronics/st-mems-android-linux-sensors-hal/tree/masterHowever, when I run the HAL binary, I encounter the following error:"root@imx8mp-lpddr4-evk:/st-mems-android-linux-sensors-hal/linux/build# ./stm-sensors-linuxfailed to open config file [/etc/stm-sensors-hal/config], using defaultsfound 5 IIO devices available under /sys/bus/iio/devicessths34pf80_tmotion: IIO device not supported by sensorHALsths34pf80_tobject_comp: IIO device not supported by sensorHALsths34pf80_tpresence: IIO device not supported by sensorHALsths34pf80_tambshock: IIO device not supported by sensorHAL

Hi, I am using LSM6DSO as my I3C sensor. It works well with RSTDAA and ENTAA. But when I tried to get its PID using GETPID ccc command, it does not work.CCC commands: RSTDAA (CCC: 0x06): Previous assigned dynamic address is removed.ENTDAA (CCC: 0x07): 0x02 0x08 0x00 0x6C 0x10 0x1B 0x07 0x44 (matches the PID, BCR and DCR in the datasheet)GETPID (CCC: 0x8D): 0x03 0xFF 0xFF 0xFF 0xFF 0xFF or just 0x02GETBCR (CCC:0x8E): 0x07GETDCR (CCC:0x8F): 0x7FHere is how I connect LSM6DSO to my I3C host:I tried I2C communication (removing the INT1 connection and leave it unconnected) and I am

Hi,  I'm struggling to monitor the debugging values on the MEMS studio. setup1. MEMS studio 2.1.1 (latest version)2. Sensor PRO Tile Box + STEVAL-MKI229A(LSM6DSO16IS)3. ST Official ispu-example GitHub, normhttps://github.com/STMicroelectronics/ispu-examples/blob/master/ism330is_lsm6dso16is/norm/output/norm.json4. ispu-examples/ism330is_lsm6dso16is/norm/output/norm.json    loading this json to the board through MEMS studio5. I can see the entire blank on the "Data Monitor" Page with checked "ISPU Output".6. Toggle the "ISPU Output" to the un-checked state, everything can back to the normal.

I'm new to the STEVAL-DRONE2 kit and would like to ask: Given that the STEVAL-FCU001V2 flight control unit includes basic sensors like the IMU and barometer, can it support the integration of additional external sensors, such as GPS modules, magnetometers, optical flow, LiDAR, or ultrasonic sensors, through STM32? And are there any specific hardware or firmware considerations I should be aware of when adding these to the system?

Hello wonderfull STM community,Really enjoying the experience with MotionFX so far, really easy to implement and get working, well done ST! Even on a G0 in CM0+ mode its working well! I'm just woudring three things:What precaution(s), if any, should be taken when pausing and later resuming the RTOS task that runs MotionFX_CM0P_update()?What is the refrence point for the quatenion in 6x mode? (to be fair I have not worked much with quatenions before so that might be an uneducated question. They are quite complex after all! (pun intended)) Is it normal for data_out.rotation_6x to be near 0 (e-16) during oppration in 6 axis mode? (other values, inlcuding inputs, are changing as expected) 

Hi,Like the post https://community.st.com/t5/mems-sensors/anyone-have-v1-3-1-mems-studio-for-download/m-p/745081 , I search the older version v.1.4.2 of MEMS-STUDIO for documenting my project. Does anyone have the installers of this version ?Thanks,lxaiia  

Hello, Is it possible to add the download links for the old versions of all your software's and resources, like it's the case on the web page of STM32CubeIDE ? In my case, I search to download the versions v1.4.1 and v.1.4.2 of MEMS-Studio for documenting my project. I asked to your support for this in the case 00239175 "How do I get an old version of MEMS-Studio ?", but your employee didn't find this. I think it is important to be able to get the older version of your resources for work on old projects and documenting the bugs and errors encountered. In my case, it's MEMS-Studio, but, in my feedback, I ask this for other of your resources which hasn't the same same system of the web page of STM32CubeIDE. Thanks for your time in the reading of my post. Best regards, lxaiia

Dear all,I am using SensorTile.box STEVAL-MKSBOX1V1 with St app.I made application with vibrometer and output to USB.but the problem when I receive this data with Python code.there is byte misaligned in x,y,z because I started to receive data after streaming.Is there any solution or another firmware to control thisBest regards 

dear all, i want to recoed acceleration date from LSM6DSOX . i made app on st app and made output rate 6666 and output stram to usb. the proplem is i use python to read date from port with serial but the bytes mismatch because the sensor starts streaming then code later and i cant control stream is there idea or solution.stream to sd isnt suitable becaues i nedd live date  best regards