STM32F103C8T6 / C6T6 Blue Pill ARM Cortex-M3 Development Board Arduino STM32

Description �� STM32F103C8T6 / STM32F103C6T6 Blue Pill Development Board – ARM Cortex-M3 MCU The STM32F103 “Blue Pill” development boards are compact and powerful microcontroller modules based on the STM32F1 series from STMicroelectronics. Featuring the ARM Cortex-M3 core running at 72 MHz, these boards are a cost-effective solution for learning ARM programming, developing embedded systems, or building hobby and professional electronics projects. Available in two variants (C8T6 & C6T6), the Blue Pill board provides excellent performance, a wide range of peripherals, and compatibility with popular development tools such as STM32CubeIDE, Arduino (STM32duino), Keil, and PlatformIO. �� Key Features (Shared by Both Variants) Processor: ARM 32-bit Cortex-M3 core, up to 72 MHz Voltage: 2.0 V – 3.6 V operating range (3.3V regulator onboard) Connectivity: Mini-USB interface for power and communication Peripherals: I²C, SPI, USART serial interfaces USB 2.0 Full-Speed Timers (up to 9, depending on variant) 12-bit ADC with multiple channels I/O: 37 GPIO pins, extended via 20×2 header Programming: Standard SWD port, supports ST-Link, J-Link, J-Link OB Crystals: 8 MHz high-speed crystal oscillator (PLL for 72 MHz operation) 32.768 kHz low-speed Epson crystal for RTC (higher precision, reliable start-up) Indicators: Power LED and user-programmable function LED Form Factor: Compact LQFP-48 package (48 pins), breadboard-friendly �� Variant Details �� STM32F103C8T6 (Blue Pill – Performance Version) Flash Memory: 64 KB SRAM: 20 KB Timers: 9 Serial Ports: 3 (USART1, USART2, USART3) Ideal For: Advanced projects requiring more memory and peripheral options, robotics, IoT gateways, and industrial control systems. �� STM32F103C6T6 (Blue Pill – Compact Version) Flash Memory: 32 KB SRAM: 10 KB Timers: 3 (no Timer 4) Serial Ports: 2 (no USART3) Ideal For: Lightweight applications, education, cost-sensitive projects, and simpler embedded systems. ��️ Development Support The STM32 Blue Pill boards are supported by a wide range of software environments: STM32CubeIDE (official ST IDE with HAL libraries) Arduino IDE (STM32duino) – easy programming with Arduino libraries PlatformIO / Keil / IAR – for professional embedded development OpenOCD ST-Link/J-Link – full debug support This makes the boards ideal for both beginners learning ARM development and engineers working on production-ready embedded applications. �� Package Includes 1 × STM32F103C8T6 or STM32F103C6T6 Blue Pill Development Board (choose variant) �� Applications Embedded systems prototyping IoT devices and gateways Robotics and motor control Data acquisition and monitoring Industrial automation Education and STEM projects �� Why Choose the Blue Pill? The STM32 Blue Pill boards combine performance, affordability, and community support. Whether you choose the C8T6 for larger projects or the C6T6 for simple designs, you’re getting a reliable ARM-based platform backed by extensive tutorials and libraries. ⚠️ Note: These are compatible Blue Pill boards based on the original STM32F103 series design. Functionality matches the official ST microcontrollers, but component layout and finish may vary slightly.