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

Any specific guidelines when you layout such components?

Posted on December 28, 2017 at 10:11I have this http://www.kynix.com/Parts/3294011/SIT8009AC-11-18E-125.000000E.html MEMS oscillator at 125MHz frequency (also the same with an OSC52 from SiWard at 25MHz) followed by a 1-to-4 clock driver to distrubu...

yalan li by Associate
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LSM9DS1 Sensor Fusion.

Posted on March 21, 2017 at 12:28Hi,Recently I worked on LSM9dS0, LSM9dS1 and LM303D sensor.Now, I have LSM9dS1 raw data from Accelerometer, Gyroscope & Magnetometer. Project is based on car driving safety system. So I want to know how can I calcula...

bhavesh by Associate II
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Activity detection using LSM6DS3

Posted on December 13, 2017 at 10:27HiI'm using LSM6DS3 for activity detection.The SLEEP_STATE_IA bit of the WAKE_UP_SRC register is used to monitor the activity/inactivity,but I have noticed that the value for the bit remains the same(ie when sleep...

How to use tilt remedy with LIS3DH sensor

Posted on December 22, 2017 at 02:24Now I want achieve tilt remedy function. I did as the following:1,tilt the sensor with a constant angle.2, In initialization function:set ODR,set mode nomal ,set full scale(+/-2g),enable x,y,z axis,set LIS3DH_CTRL...

dehai wo by Associate II
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Sensortile Mic Level

Posted on December 21, 2017 at 17:01What is Mic level in sensor tile represent ? The audio noise in db in particular as per this formula DBNOISE_Value_Ch[NumberMic] = (uint16_t)((120.0f - 20 * log10f(32768 * (1 + 0.25f * (AUDIO_VOLUME_VALUE /*AudioI...

LIS3D :the calculation---Puzzling problem in AN3308.

Posted on October 22, 2017 at 05:12       I have found a puzzling problem while I reading the document AN3308,On page 17,table 9.In my opinion, 1g come from the formula : a = (0x4000 -> 0x400 = 1024)*2000mg/2048.So get the correct value : 1g , In th...

dehai wo by Associate II
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LIS3DH INT2

Posted on December 20, 2017 at 17:00Hello!I am trying to detect a collision and generate an interrupt on INT1, and also to detect motion and generate an interrupt on INT2. INT1 is working normally, but INT2 does not work. It seems I am missing somet...

LPS25HB to LPS25H Temperature Difference

Posted on December 18, 2017 at 14:24We are currently replacing the LPS331AP in our design. we favour the the LPS25HB. i'm working with the STEVAL-MKI165V1 Kit, which is directly connected to our board. The pressure seems to be in a reasonable range ...

LIS12DH12TR self test values

Posted on December 18, 2017 at 15:26Hi,  I am using LIS2DH12TR accelerometer. I am testing self test values.When self test mode is disabled, the axis values:Ax:100By:80Cz:90When self test mode is enabled in self test mode 1, the axis values:Kx:120Ly...