Meet the STM32 Breakout — a tiny yet mighty module designed around the STM32F411CEU6 (Cortex-M4F) running at 100 MHz. It features a USB-C connector for power and programming, dual rows of castellated and through-holes for flexible integration, onboard Reset and Boot buttons, an RGB LED, and full compatibility with Arduino, MicroPython, CircuitPython, PlatformIO and STM32Cube-IDE. Despite its compact size (~28 × 21mm), the STM32 Breakout delivers 512 KB of flash and 128 KB of SRAM, making it ideal for embedded projects, high-performance sensors, robotics, IoT and wearable applications.Key Selling Points 100 MHz Cortex-M4F core with FPU 512 KB flash / 128 KB SRAM USB-C connection for power & programming Dual rows of castellated + through-holes (~17 GPIO pins exposed) On-board Boot & Reset buttons; RGB LED indicator Compatible with popular toolchains: Arduino, MicroPython, CircuitPython, STM32Cube, PlatformIO Small form-factor enables easy PCB integration or breadboard use Specifications Parameter Value Microcontroller STM32F411CEU6 (Cortex-M4F) @ 100 MHz Memory 512 KB Flash, 128 KB SRAM USB Interface USB-C for power & programming GPIO Exposure ~17 usable I/O pins via dual rows of holes Board Dimensions ~28 mm × ~21 mm (approx) On-Board Features Boot button, Reset button, RGB LED Integration Style Through-hole + castellated edge soldering Supported Toolchains Arduino, MicroPython, CircuitPython, STM32Cube, PlatformIO Typical Applications Embedded systems, IoT modules, robotics, wearables
