B-L475E-IOT01A1 kit connectivity with AWS

[ABans.11]

1. B-L475E-IOT01A1 kit connectivity with AWS.

2. Modification its AWS connectivity parameters.

3. Creation of AWS connectivity parameters.

4. STM32Cube MX support with AWS cloud APIs5. Example programs and documents

 

 

I just purchased B-L475E-IOT01A1 kit. Till now I did not update its firmware and using factory program.

I tried to connect AWS cloud service but by mistake I changed its TLS security keys as well as Root Certificate files by serial terminal. Now I am not able to create new TLS and RC from Amazon site.

Please suggest what should I do to restore TLS and RC files.

Also suggest how can I create and use example projects for this kit by STM32Cube MX.

Documentation of this kit for AWS cloud is also not available.

[ABans.11]

Able to generate AWS certificates and communicate device kit to AWS cloud demo server. So please ignore point number 1, 2 and 3 from my question. Now trying to search and work to upload demo program into IoT kit and then establish to communicate with AWS cloud demo server.

In this regard please reply of point number 4 and 5. Thanks.

[Guillaume K]

try X-CUBE-AWS version 1.4.1. Don't get version > 2.0.0 (use "Select version" on the web site).

It does not work with CubeMX. Just unzip the .zip file and open the IDE project file under Projects\B-L475E-IOT01A\Applications\Cloud\AWS. You can use EWARM, MDK-ARM or SW4STM32 project files. For STM32CubeIDE, do an import of SW4STM32 project files.

[ABans.11]

Dear Guillaume,

Thanks your suggestion, I will check example programs after downloading X-CUBE-AWS.

please provide your comments on below queries..

1. Currently X-CUBE-AWS version 1.4.1 does not have any document to use it. Please suggest if any thing we have. (ST website suggest latest version X-CUBE-AWS version 2.2.1
2. How will we attach X-CUBE-AWS version 1.4.1 with CubeMX Embedded software package list because it do'nt show any AWS cloud package. CubeMX just show Azure cloud in its package list but not AWS.
3. As a designer can I use this program to other microcontroller of STM32L4 series? Is it applicable for all microcontroller of STM32L4 series.
4. Can you suggest any document which provide a way to start STM32L4 series example for AWS cloud and could be modified as per our selected microcontroller or new hardware board based on new microcontroller. (Please suggest document other than UM2178 because it have very chaos for startup as well as it is based on single micro)

Regards.

[Guillaume K]

Hello

1. there is a version of UM2178 for X-CUBE-AWS 1.4.1 here : https://github.com/STMicroelectronics/x-cube-aws/blob/main/Doc/UM2178_X-Cube-AWS_V1.4.1-GettingStarted.pdf

2. X-CUBE-AWS 1.4.1 is not supported in STM32CubeMX.

3 this program is dependent from network hardware interface. On B-L475E-IOT01 it uses an external WiFi module Inventek ISM43362 installed on the board. If you choose another hardware platform you will have to do the adaptation for the networking part.

4 there is only UM2178. Could you explain more in detail the problem with this document ? is it more a problem in the configuration of the application itself ? what could have been done differently ?

[gawa.1]

You didn't provide any code it's tough to wager what mistakes you made, however that is in all likelihood the basis of the problems you stumble upon new solution.

ADC interrupts are rarely beneficial in practice. Either use DMA with ADC or use timer interrupt to study the result from ADC with the WAIT mode set.