Microcontroller platform for system prototyping, sensor integration, and handson programming projects, ideal for elmic engineers, STEM educators, and manufacturers with ARMbased solutions. The STM32F103C8T6 development board combines performance I/O capabilities, USART and I2C communication, and 40 programmable I/O pins to support efficient IoT, robotics, and smart device development. Constructed with industrialgrade materials, this STM32F103C8T6 minimum system board delivers improved signal stability and durability, while preserving IDE compatibility through driver support. Optimized for industrial automation prototypes, Smarts Home Controllers, and robot engineering applications that require expansion and realtime data processing. Use scenarios IoT edge device and sensor network: connect multiple sensors via I2C, use USART for serial communication, perform local data processing, and interface with cloud services. Educational labs and handson training: students and educators explore ARMbased microcontroller programming, sensor interfacing, and firmware development using standard IDE workflows. Smart home and robotics prototyping: build expandable control platforms for home automation or robotic systems, enabling realtime data processing and hardware extensions.