MEMS (sensors)

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Wrong pressure reading from LPS25HB sensor.

Posted on August 01, 2017 at 18:56Hi all,I am evaluating the LPS25HB pressure sensor on iMX6 host processor, I am interested in getting the altitude for our usecase.The problem is  I am getting consistent value of pressure with no change even when I...

Reducing accelerometer noise using sensor array?

Posted on July 27, 2017 at 18:53Hi to all, I was taking a look to LIS344ALH accelerometer for a project where I need to place MEMS accelerometer into Raspberry board.I've heard there is a way to reduce acceleration noise placing sensors in array (e....

mbertoni by Associate II
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BlueMicrosystem2 with Android Apps disconnect

Posted on June 21, 2017 at 22:20I am using the BlueNRG-MS on SensorTile and loaded the BlueMicrosystem2 firmware.When connecting/disconnecting with ST BlueMS App using iPhone.  Everything is OK.When testing the same with Android phone (Android 5.0.1...

MOTENV1_ENABLE_PRINTF

Posted on July 26, 2017 at 23:26HW : STM32L476RG-SensorTileSW : SW4STM32Tried to enable the debug print through USB.I was using the BlueMicrosystem2_V2.2.0.  Enable  #define OSX_BMS_ENABLE_PRINTF and rebuild code will work.Can see all the print out....

LIS3MDL always off by about 11.5 degrees

Posted on July 25, 2017 at 20:35LIS3MDL doc says take 16 bit signed Temperature Register values, divide by 8, and add 25 degrees C.   I get a value that is always about 11.5 degrees  warmer than what the ASM330LXH on the same board is reporting, and...

BlueNRG-MS hardware error

Posted on July 23, 2017 at 16:54Hi all ,    I used BlueNRG-MS found a problem , the MCU is freescale chip and used SPI communcation with BlueNRG-MS , but the MCU send the configuration information to BlueNRG-MS , start I could read 0x04 0xFF 0x03 0x...

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IIS2DH (DM00171283) Single click detection?

Posted on June 13, 2017 at 14:08I am working with IIS2DH accelorometer an I would like to configure single/double click tap detection. For that, I have done following configuration:I2C_WriteByte(&ctrl_1,1,0x5F);  I2C_WriteByte(&ctrl_3,1,0x80); I2C_W...

Resolved! LIS3MDL BDU

Posted on July 17, 2017 at 08:22hello, I have gone through the datasheet and app note of LIS3MDL. But i am not able to get how block data update bit work i.e. if someone has set the BDU bit and if I read registers through I2C one by one, then how th...

IIS2DH Double click detection (DM00171283)

Posted on July 19, 2017 at 14:30I have done following configuration to detect double click. I am able to detect double tap but it is consider four times.I2C_WriteByte(&ctrl_1,1,0x5F); I2C_WriteByte(&ctrl_3,1,0x80); I2C_WriteByte(&ctrl_6,1,0x82); I2C...