STM32 F103C8T6 TYPE C

🔹 STM32F103C8T6 ARM Cortex-M3 Board – Type-C, STM32 Minimum System Module

This STM32F103C8T6 minimum system board, commonly known as the “Blue Pill,” is a powerful 32-bit ARM Cortex-M3 microcontroller board featuring a USB Type-C connector. It offers a cost-effective alternative to the original STM32 development boards, perfect for embedded projects requiring high performance, multiple I/Os, and advanced peripherals.

✅ Specifications:

• Microcontroller: STM32F103C8T6 (ARM Cortex-M3 32-bit)

• Clock Speed: Up to 72 MHz

• Flash Memory: 64 KB (expandable)

• SRAM: 20 KB

• USB Connector: Type-C (for programming and power)

• Operating Voltage: 3.3V (via USB or external regulator)

• Input Voltage: 5V (via USB) or external 3.3V

• Digital I/O Pins: 37 (some 5V tolerant)

• Analog Inputs: 10 x 12-bit ADC channels

• Timers: 3 x 16-bit, 1 x 16-bit PWM

• Communication Interfaces: 2 x I²C, 2 x SPI, 3 x USART, 1 x CAN

• Debugging: SWD (Serial Wire Debug) via 4-pin header

• Status LEDs: Power (red) and User (PC13 – blue/green)

• Reset Button: Yes

• Crystal Oscillators: 8 MHz and 32.768 kHz (RTC)

• Dimensions: ~53mm x 23mm

📦 Features:
✔️ 32-bit ARM Cortex-M3 processor at 72MHz
✔️ USB Type-C for modern connectivity
✔️ Bootloader pre-installed – program via USB (DFU mode) or Serial (USART1)
✔️ Compatible with Arduino IDE (via stm32duino), PlatformIO, Keil, STM32CubeIDE
✔️ Low power consumption for battery-operated projects
✔️ Large community support and libraries
✔️ 5V tolerant pins (most pins)

📦 Applications:
✔️ Embedded systems development
✔️ IoT and sensor data logging
✔️ Robotics and motor control (with external drivers)
✔️ Home automation and smart devices
✔️ Drone flight controllers (Betaflight, INAV)
✔️ Digital signal processing (DSP) projects
✔️ Real-time control systems
✔️ Educational microcontroller learning

🔧 Programming Options:

• USB DFU (Device Firmware Upgrade): Direct via Type-C port (requires driver)

• Serial (USART1): Via USB-to-Serial adapter (PA9=TX, PA10=RX)

• SWD (ST-Link / J-Link): Via 4-pin SWD header

⚠️ Important Notes:

• 3.3V logic only. I/O pins are 3.3V logic level. Use level shifters for 5V devices.

• Boot0/Boot1 jumpers: Used to select boot mode (Flash or System Memory for DFU).

• STM32CubeProgrammer or stm32flash tools are required for USB DFU flashing.

• USB Type-C port is used for both power and programming (DFU mode). Does not support USB Host mode.