STM32F103C8T6 / C6T6 Development Board – Blue Pill Core Board Starter Kit

STM32F103C8T6 / C6T6 Development Board The STM32F103C8T6 is a mainstream Arm® Cortex®-M3 microcontroller from STMicroelectronics, running at up to 72 MHz with 64 KB Flash and 20 KB SRAM. Widely used in motor control, industrial automation, and consumer electronics — this Blue Pill-style development board is the ideal starting point for embedded development. Key Specifications Core: Arm® 32-bit Cortex®-M3, up to 72 MHz Memory: 64 KB Flash / 20 KB SRAM (C8T6); 32 KB Flash / 10 KB SRAM (C6T6) Peripherals: 37 GPIOs, 2×12-bit ADC, USART, SPI, I²C, CAN, USB Package: LQFP48 Supply Voltage: 2.0–3.6 V Board Features Onboard USB connector (Micro / TYPE-C options available) Reset button and PC13 LED indicator SWD debug interface compatible with ST-Link V2 Breadboard-friendly 2.54 mm pin pitch Optional: pins pre-soldered or unsoldered Getting Started Program and debug using STM32CubeIDE + STM32CubeMX (free official tools). Connect via ST-Link V2 through the SWD interface (SWDIO / SWCLK / GND / 3.3V). Configure clocks, GPIO, and peripherals graphically — then generate HAL code in minutes. Common Issues & Tips Add 100 nF + 10 µF decoupling capacitors on each VDD pin for stable operation Verify SWDIO / SWCLK / GND / NRST wiring if ST-Link fails to connect Check PA11 / PA12 if USB is not recognized 📖 Read the full STM32F103C8T6 User Guide — covering hardware design, pinout, programming basics, and troubleshooting based on official ST documentation (DS5319, AN2586). Note: Genuine STMicroelectronics chips. Always verify with STM32CubeProgrammer for production use.