About RKeit.1

RKeit.1 · 2021-01-25

I am trying to get the LIS2DE12 to generate an interrupt when shaken. I have connected the INT1 pin to an open drain I/O pin of my MCU. I an get it to generate the desired interrupt with some reliability. However, when it is just sitting still, it ge...

RKeit.1 · 2021-01-21

I am trying to set up a self test process for an assembly including an LIS2DE12. The device works normally when I tilt and invert it. When I try to put it in to self-test mode by writing either 02h or 04h to CTRL_REG4 the readings are the same as wi...

RKeit.1 · 2020-07-20

Hi,I have been using the LIS3DH successfully but I want to go to the LIS2DE12 because it is smaller and only does what I need. I have wired up a STEVAL-MKI175V1 board to a 3.3 v Arduino close to do some initial evaluation. I can't get it to respond a...

RKeit.1 · 2020-04-08

Hi All,I have been using the LIS3DH for years and have always found it trouble free.I have a very small board with an MCU, an Si7051 temperature sensor and an LIS3DH. The two sensors share the same very short I²C bus. There are 10 kΩ pullup resistors...

RKeit.1 · 2021-01-27

Hello Eleon,Thanks for the reply.I think I have cracked the problem. The starting point is the high pass filter example 6.3.3 in AN3308. It seems the key to getting rid of the spurious interrupts is to read the reference register. It works for what I...

RKeit.1 · 2021-01-25

I do all that on the cloud. I am working with a very basic MCU and do everything in raw bytes.Also. Not in the documentation: There are two test modes. Mode 1, CTRL_REG4 = 04, moves the readings one way and Mode 2, CTRL_REG4 - 02, moves them the same...

RKeit.1 · 2021-01-22

Hello again Eleon,I have found the problem and now getting good consistent results in self test mode. I had forgotten to set the write bit used by the state engine that controls the SMBUS in the MCU I am using. I still can't get it to work with the ...

RKeit.1 · 2021-01-22

Hello Eleon,Thank you for your answer. That gives me some clues. One thing I am still unsure of is the magnitude of the variations in readings during self test. Is it like a few LSBs or bigger? Does it occur on all axes? I know the answers are probab...

RKeit.1 · 2020-08-04

I found the problem.The LIS2DE12 does not work at all with Arduinos with the SDO pin pulled to ground.It does not work reliably with any other I2C master I have tried with the SDO pin pulled to ground. It also draws really excessive current all the t...

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LIS2DE12 generating interrupts at low ODR

LIS2DE12 self test

LIS2DE12 pull up resistor values

LIS3DH not responding. Maybe pullup resistor strength or interrupt pin connection.

Re: LIS2DE12 generating interrupts at low ODR

Re: LIS2DE12 self test

Re: LIS2DE12 self test

Re: LIS2DE12 self test

Re: LIS2DE12 pull up resistor values