Because Proteus does not include the STM32 Blue Pill board by default, you must download a third-party library.
Look inside the extracted folder for two primary file formats required by Proteus: *.LIB (The component library file). proteus library for stm32 install
This is the industry-standard way to use STM32 in Proteus. Instead of installing a library, you download a pre-made Proteus project file ( .pdsprj ) that already contains the STM32 chip correctly configured. Because Proteus does not include the STM32 Blue
To successfully integrate an STM32 library into Proteus, follow this standard procedure: follow this standard procedure: