MEMS (sensors)

MotionFX: Different between implementation for M0 vs. M3

Hi,i am trying to use the MotionFX library on M0 MCU for LSM9DS1. As result i read the rotation_9X structure and use yaw as heading for compass result. The result showing the rotation but i see the offset on the Z axis of the gyro and the heading res...

What are the units for the "output data rate of 5.3kHz? How long does the LIS2DE12 take to fill its FIFO.

The datasheet gives an "output data rate" for this sensor of 5.3kHz. What are the units on this, bits, bytes, 16-bit per-axis words, or for each complete set of 3 X, Y & Z data samples? Is this the output of internal sampling, the fifo fill rate (uni...

On an LIS3DH in low power with FS set to +- 16g the datasheet on page 10 gives a sensitivity of 192 mg/digit. So 192 * 128 = 24,576. Or a range of 24.6 g??? Am I missing something???

Is there limitation for SPI address auto-increment option in LIS3MDL devices?

Hi All,I can read successfully in burst mode "MS bit is set to '1'" the data from output registers X_L, X_H, Y_L,Y_H,Z_L and Z_H.But if i add temperature data TEMP_OUT_L, TEMP_OUT_H into read frame the temperature value is not read.Examples: Rx buff...

Cannot access mag registers on LSM9DS1

On about 15% of the boards in my latest production run I am able to access the accel/gyro registers over the I2C bus but cannot access the magnetometer registers. As a simple test I am trying to read the WHO_AM_I register (0x0F) for both. I get the...

Hello everyone, How does MEMS measurement ranges realized in hardware in details? Does it use amplifiers with different gain ratios or does different MEMS cells used?

Using the LSM303 right out of the box

 Will I get meaningful data if read the registers without any register modification or do I have to set the registers first. Sorry I'm very new to ST products and I would like to incorporate into my product.

STEVAL-MKI109V3 Dfuse update issue

Hello,I am trying to get the STEVAL-MKI109V3 upgraded to support the STEVAL-MKI179V1.When I first tried to use the 109V3, Unico said my firmware was out of date and needs to be updated to support the 179V1.So I used Dfuse to update the part. I am usi...

LPS22HB as pressure sensor

I try to use the LPS22HB as real pressure sensor (measure of force against the skin, but I almost didn't see any change. Only when press with big force I see the change.Does the name of barometer mean it can't sense pure pressure against its window?

LPS33HW SW & EV board

If I want to test the LPS33HW and I already have the X-NUCLEO-IKS01A2 motion MEMS place over STM32 Nucleo test by DataLogTerminal SW from X-CUBE-MEMS1 package.I see there is LPS33HW EV STEVAL-MKI183V1. But I didn't see any reference to use it on the ...