Arduino for STM32

Colleagues, tell me, please, why I get such a huge code?

I'm compiling the classic Blink program for BluePill (F103C8). USB support is disabled. Optimize is Smallest.
The built code takes up 10752 KB , 16% of the total memory for the program. Global variables use 836 bytes.

The program in five ...

with STM core to use the USB (virtual) com port, you need to compile your sketch with USB (CDC) Serial selected.
then you can use a sketch as like

Thank you very much for the answer!

Did I understand you correctly - if I specify the "USB (CDC) Serial" setting, then I do not need to do anything ...

Don't have the answer. But can give you a way to get to it.

1. Does it have the USB pins routed out to the USB connector? I think yes

2. Does it have the right usb signaling? I think the answer is no.

3. Does it have the right software? Only you can answer.

I'm sorry, but your answer is very ...

Colleagues, tell me, please, is it possible now, using stm32 duino, to use a virtual com port via USB in Blue Pill module?
I mean not for programming, but for connecting my program in BP with a computer.

I couldn't find an answer to this question in the FAQ, so I'm asking here.
Thanks in advance ...

Colleagues, please fix your forum - every time I log in, it forces me to change my password and does not explain why the old one was not good.
Undoubtedly, I am ready to endure a lot for the opportunity to join such a worthy society, but still it is somewhat tiring.

With the hope of understanding ...

I'm not too sure about mac
but if you can get python to work properly
there is this utility
https://pypi.org/project/stm32loader/
https://github.com/florisla/stm32loader
https://github.com/jsnyder/stm32loader
that i used from the command line to flash/program the bin file over serial.
But i'm ...

Colleagues, tell me, please, how can I set up an IDE on the Ubuntu platform for BluePill programming via a serial port?

In the days of the old stm32duino.com forum, I did this, but then the IDE settings were different, and I used the Mac platform.
I used a usb-serial module purchased from ...