STM32

The classic hobbyist STM32 boards, emulated at the SoC level:

Board	MCU	Core
Blue Pill	STM32F103C8 (64 KB)	Cortex-M3
Blue Pill F103CB	STM32F103CB (128 KB)	Cortex-M3
Black Pill	STM32F411CE	Cortex-M4
Black Pill F401	STM32F401CE	Cortex-M4
STM32F4 Discovery	STM32F407VG	Cortex-M4
Olimex STM32-H405	STM32F405RG	Cortex-M4
Netduino Plus 2 / Netduino 2	STM32F405 / F205	Cortex-M4 / M3

Language: Arduino C++ (the STM32duino core).

Notes

• GPIO, timers, UART and the usual Arduino API surface work; the RGB color-cycle and display examples in the gallery are a good check of what’s exercised.
• STM32 projects compile with the real stm32 Arduino core, so register-level code (HAL_, direct peripheral access) builds the same way it would in the IDE.
• Pick the exact variant you own — flash size and pinout differences between the F103C8 and F103CB, or F401 and F411, are modeled.

Board art and pinouts

Each board’s canvas art and full pin map, generated from the simulator:

Blue Pill F103C8 · Blue Pill F103CB · Black Pill F411CE · Black Pill F401CE · F4 Discovery · Olimex H405 · Netduino Plus 2 · Netduino 2