STM32WB5 BLE

stop · ‎2024-08-13

Hi all,

no experience, so please explain like to a child.

I want to jump into digital.

My idea is to make a bluetooth speaker with LED meter so:

USB C for Power(CYBD3177) and/or Audio IN(STM32wb5).

Bluetooth Audio IN (STM32WB5) -> out to Class D Amp (TAS5827)

Two more Data Lines to control WS2812B

Which physical connections do I need?

I guess:

D+D- from USB C to STM32
DIN L/R (GPIOs?) from STM32 to WS2812
I2S(LRCLK,SCLK,SDIN) from STM32 to TAS5827
4 more eventually Data lines (GPIOs?) from TAS 5827 to STM32 for return messages

is this correct?

thanks

Andrew Neil · ‎2024-08-13

@stop wrote:
no experience

No electronics? No programming at all? No microcontrollers?

@stop wrote:
so please explain like to a child.

As with a child getting started, it would be wiser to start with something simpler!

Begin with the basics, then move up to more advanced stuff.

Here are some beginner's getting started tips:

https://www.avrfreaks.net/s/topic/a5C3l000000UYGFEA4/t145493?comment=P-1392529

@stop wrote:
My idea is to make a bluetooth speaker with LED meter

That's a pretty advanced project for a beginner!

Be aware that most "Bluetooth speakers" use Bluetooth Classic - and none of the STM32s support that:

https://community.st.com/t5/stm32-mcus-wireless/stm32-bluetooth-classic-mcu/m-p/700352/highlight/true#M20355

https://community.st.com/t5/stm32-mcus-wireless/classic-bluetooth-in-stm32wba55/m-p/694980/highlight/true#M20091

https://community.st.com/t5/stm32-mcus-wireless/stm32wba55g-dk1-not-compatible-with-all-mobiles/m-p/700350/highlight/true#M20354

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.

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Andrew Neil · ‎2024-08-13