BLE RF Testing Between Two Fasal Devices

ShashankHoysala · ‎2025-09-15

Hello ST Team,

I’m Shashank Hoysala from Wolkus Technologies.

We have two device variants, Fasal 5.0 and Fasal 6.0, which differ in hardware but both use the same STM IC (STM32WB5MMGH6TR). We attempted BLE RF testing following the procedure recommended by the ST team, including updating the Stack, FUS, and binary code.

Test Case 1:
BLE RF testing between a Fasal device (5.0 or 6.0) and the STM32WB5MMG Discovery Kit worked as expected. Communication was successfully established, and all required tests were completed without any issues.
Result: Pass

Test Case 2:
When performing the same testing between two identical Fasal devices (5.0 & 5.0 or 6.0 & 6.0) or between different Fasal devices (5.0 & 6.0), communication could not be established, and all tests failed.

Result: Fail

For your reference, I have attached a test setup photo and a video demonstrating Test Case 1.

My key question is: How can we perform BLE RF testing between two Fasal devices without using the Discovery Kit?

Thanks and regards,
Shashank Hoysala
Wolkus Technologies

Andrew Neil · ‎2025-09-15

Note that this is a Public community forum; it is visible to everyone, everywhere on the internet - so you might want to reconsider publishing your email address ...

See "Welcome to the Communtiy"

If you want direct private support from ST, raise a ticket at https://ols.st.com/s/

@ShashankHoysala wrote:
Fasal devices

You mean these: https://www.fasal.co/ ?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

ShashankHoysala · ‎2025-09-16

Hello Andrew,

Thanks for your reply and input, i have removed my email from the post.

Yes, the one which you can see on the website is Fasal 5.0 and the one which i have attached above as photo (Testing setup 1) is Fasal 6.0 along with Discovery kit.

Let me know if you need any additional data to solve our key question.

STTwo-32 · ‎2025-09-29

Hello @ShashankHoysala

For such a case, i think it will be better to contact the company that manufactured this product.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Andrew Neil · ‎2025-09-29

I think @ShashankHoysala is working for the manufacturer of that product - Wolkus Technology ?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.