MEMS (sensors)

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X-NUCLEO-IDB04A1 doesn't work

Posted on February 14, 2018 at 19:52Hello,I have an old board X-NUCLEO-IDB04A1 with BlueNRG chip and 32MHz HSO. Bulk ID: Z5T43269A018. I implemented with it my own device based on STM32F407VGT6.In firmware I setup minimun:1. Execute ACI_GATT_INIT.2....

H3LIS331DL configuartion issues

Posted on February 09, 2018 at 16:32 Hi, I am working with H3LIS331DL sensor . my configuration is as follows 1Power on the sensorconfigure the control register 1 with normal power mode and data rate 1000hzconfigure interrupt source1 for data r...

H3LIS331DL Data Ready Interrupt is not triggering

Posted on February 13, 2018 at 12:54Hi All,I am trying to understand configuration of H3LIS331DL sensor with Data Ready Interrupt.As per my previous posts, I understood Turn On-Time should be given after Configuring the Control Register 1.Here is th...

BVADPCM data noisy when Sensor Tile is soldered to cradle

Posted on January 25, 2018 at 12:52When the Sensor tile is hooked to Expansion board, the FP ALL MEMS firmware and the custom firmware is able to stream the audio data to STBlue MS app. However the above said firmware would stream noisy data when th...

H3LIS331DL Turn On time

Posted on February 09, 2018 at 15:20Hi all,I have been working on H3LIS331DL sensor. I am missing one clarification from datasheet of H3LIS331DL.On Page 10 of datasheet H3LIS331DL, Turn on time should be 1/ODR + 1ms.It is clear that based on ODR rat...

LIS3DH as movement/tilt sensor

Posted on February 05, 2018 at 19:54Hi ALL, I bought the LIS3DH development kit.I want to use it as a sensor that will wake my MCU with interrupt when someone moved my board or tilt it.I have some constrains:1. I need low consumption current with my...

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LSM303AGR Low ESR capacitor

Posted on February 09, 2018 at 10:31Hello, in the LSM303AGR datasheet a low esr capcitor (220nF) is requested on pin5. But no more indication are given.On which frequency the esr must be < 200mOhm ?Thanks for the help.#lsm303agr