Proteus: Library For Stm32 Exclusive

Proteus largely focuses on the STM32F103 series (Cortex-M3). If you are looking for high-end chips like the STM32F4 or H7 , you will likely find them unsupported because their peripherals are too complex for accurate real-time simulation.

digitalWrite(PC13, LOW); Serial.println("STM32 Active: LED OFF"); delay(1000); proteus library for stm32 exclusive