MEMS (sensors)

Ask questions and find answers on ST MEMS sensors, such as the LSM6DSV and the LSM6DSL. Learn how to use the SensorTile.Box, and STEVAL kits.

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Forum Posts

FIFO_Pattern seems desynchronized

I have configured the LSM6SDM into continuous mode, 104Hz as is described in AN487, Example 1. I am reading first the number of words in the FIFO, and then the FIFO Pattern (from FIFO Status 3).Here are some code snippet for initialization:unsigned c...

DMeye.4 by Associate II
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Resolved! What is the actual design of the accelerometer low pass filter?

I am attempting to use the LPF2 chain on the LSM6 accelerometers. The cut-off frequency is described as something like ODR_XL/100. I assume that means if you are running at 12.5 Hz the cutoff frequency is then .125 Hz. I am assuming that this is the ...

How to configure an LSM6DSO to detect device motion?

Hi,I want to configure the LSM6DSO to trigger an interrupt on INT2 when the device starts and stops moving. I used the following configuration, but I can only detect taps on the vertical axis: // LSM6DSO datasheet pg 74 // (00: stationary/motion-onl...

Myzhar by Associate III
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Resolved! I3g4250d temperature data invalid for 1 second (STM32F411VE-Disco)

I am writing a driver to retrieve data from the I3G4250D gyroscope embedded in the STM32F411VE discovery board (MB1115D). When the sensor starts up, the first 1 second of data contains an invalid temperature value (typically showing -7). After one se...

AWool.1 by Associate
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  • 1 replies
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Resolved! H3LIS331DLTR produces abnormal readings

Hi! We have been evaluating a few accelerometers from ST. So far we have seen reasonable results from H3LIS100 and H3LIS200 devices.However, H3LIS331DLTR is behaving contrary to our expectations.We have the H3LIS331DLTR device on a PCB, interfaced vi...

NTamb.2 by Associate
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  • 2 replies
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configuring Compasses , Accelerometer , gyroscope

I am a nobe to these Mems sensor , i understood how to write the drivers of these sensors , setes its register to get raw values but i am unable to understand how to configure the internal settings of these sensors.like In Compass sensor we have to c...

Chopra.1 by Associate II
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  • 1 replies
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asm330lhh. XYZ values do not correspond to the actual location

Hi,I using test library from ST:https://github.com/STMicroelectronics/STMems_Standard_C_drivers/blob/master/asm330lhh_STdC/examples/asm330lhh_read_data_pollng.cMy code is based to this code. and I can`t fugure out why Y is too small (and not shows ne...

SPere.4 by Associate
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  • 1 replies
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self test fail in some PCB having LIS2DW12TR.

we are performing accelerometer self test in production tester for measuring performance of sensor.software flow:reading x y z axis in 5 samples, clearing FIFO enabling self test. and giving settling time of 20ms delay. then taking 5 samples x y z ax...

Ashet.1 by Associate
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  • 1 replies
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