MEMS (sensors)

LSM9DS1 I2C address confusion

I have confusion about I2C address for magnetometer.As in the datasheet at page 11:SDO_M: I2C least significant bit of the device address (SA0) for the magnetometerBut in the table 20 page 30:See picture enclosedIt looks like the SDO_M pin is used fo...

Sparse LIS331 Datasheet(s)

Posted on July 12, 2018 at 08:16Dear all - especially STM developers,I recently integrated an LIS331HH sensor. It seams to be very nice sensor! But anyway while reading LIS331 Datasheet, I found that information required for proper MCU driver implem...

VL53L0x API data access inconsistency

The VL53L0X API (https://my.st.com/content/my_st_com/en/products/embedded-software/proximity-sensors-software/stsw-img005.license=1533144599665.html) requires definition of a platform-dependent structure of type VL53L0X_DevData_t. This structure must...

Using VL53L1X to detect ping pong balls on a table tennis board.

Hi all,I am designing an application which would tell me, if a ping pong ball lands on a particular area of a table or not. Below is a sketch that illustrates:Sensors would be placed on left side of the table, facing the other side as shown in the ab...

VL53L1X: Is there only one kind of calibration (API), or there is a calibration that is made by ST for their dev. and breakout boards?

When I use the breakout board included in the dev kit, the precision is at most 2 mm, but when I use the VL53L1X soldered on one of my board, the precision is really different. Is there a particular calibration or setting that are input to the breako...

ISM330DLC : Noise Issue

Posted on July 16, 2018 at 08:55Hi,I am using ISM330DLC  accelerometer and gyroscope sensor.I have initialized the accelerometer & Gyroscope register and reading the respective X,Y,Z register and that is providing huge noise in gyroscope values. And...

Is there a way to detect overflow with LIS2MDL?

Posted on June 06, 2018 at 19:15GreetingsI am using the LIS2MDL to build a magnetic field sensor for the education market.  When the magnetic field being measured exceeds the maximum allowed value, I notice that the LIS2MDL returns unpredictable dat...

I am using the lsm6dsl chip. It is used SPI communication mode 3 in datasheet. However, It's communicate in mode 0 in actual test. Is there anything wrong with using mode 0 in continuous?

LSM6DS3 activity/inactivity recognition: restore activity by software

Posted on June 21, 2018 at 17:23Dear all,I'm working on a LSM6DS3 chip.I have configured it to exploit the Activity/Inactivity recognition functionalities, and all is working.On the other hand, I'm not able to do the following and/or to find documen...

Pattern in FIFO_STATUS3 Register Does Not Update After Overrun Bit is Set

Posted on June 29, 2018 at 19:58 I am seeing some odd behavior when using the LSM6DSL sensor.I have configured it to use the FIFO in continuous mode, enabled storing of gyro and accelerometer data, and enabled wakeups and the wakeup interrupt.The in...