DA14531 Tiny module

I could not assign firmware to the DA14531MOD bluetooth module and
I could not talk to it with AT commands.
Could you please help me with this?

programs that I have.

-SmartSnippetS studio

-SmartSnippets Toolbox

materials I have available.

-DA14531MOD bluetooth module (tiny module)
-STM32f407 development board
-jumper cable

I don't have a development card from your company 
and I can't get one anytime soon.

Can you please help me complete my project?

I'm not sure if the hex file for which I will make the firmware is correct,
can you share a link with me for that?