STM32

https://github.com/stm32duino/Arduino_Core_STM32

https://www.e-tinkers.com/2020/01/getting-started-with-stm32-and-things-you-need-to-be-aware-of/

Bluepill

https://stm32-base.org/boards/STM32F103C8T6-Blue-Pill

STM32F103C8T6

https://www.youtube.com/watch?v=Myon8H111PQ

https://www.youtube.com/watch?v=L670v-Oghs4

boot0 set to 1 to enable programmer mode, ... boot1 set to 0 is system memory and set to 1 is embedded sram

https://deepbluembedded.com/stm32-boot-modes-stm32-boot0-boot1-pins/

(is mine a fake one?)

https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json

https://www.phippselectronics.com/blue-pill-programming-via-usb/

https://github.com/Serasidis/STM32_HID_Bootloader/releases

stm32flash.exe -g 0x8000000 -b 115200 -w hid_generic_pc13.bin COM2