BMA222. Incorrect acceleration values

[Jet]

Hi Sir:

  Did you switch another BMA222e to re-check?

  Could you read out all register values of BMA253 and sent them to us?

   Maybe need to check them correct or not first.

[davidovskii]

I apologize for the long answer, the attached txt file contains the values ​​contained in the registers of my accelerometer.(file Response.txt)

I do not have the opportunity to use an accelerometer of another model, in my country it is rather difficult to buy quickly.

I also added the firmware that I use for polling. (I am using PlatformIO in Visual Studio Code)

[Jet]

Hi Sir:

   I am not sure whether you succeed to read out the register values. But I had a look at response.txt, I didn't see the flag I want to confirm first.

   Please see the following picture:

 First CHIP_ID need be read out to check whether to choose the corresponding Sensor.

BMA222E CHIP ID at register 0x00 is 0xf8. You should first check whether to get this value.

[davidovskii]

Hello.

I tried to read the register values ​​of my accelerometer using the official API (https://github.com/BoschSensortec/BMA2x2_driver), but I could not run the project on my ESP NODEMCU V2. Do you have an example of firmware for ESP? Could you please share it

[Jet]

Hi Sir:

    Sorry to say that no ESP example is available. In general I also only use STM32 platform.

    Regarding your issue, maybe you should check your communication correct or not if don't get CHIP ID.