STM32 F103C6T6 TYPE C

🔹 STM32F103C6T6 ARM Cortex-M3 Board – Type-C, STM32 Minimum System Module

This STM32F103C6T6 minimum system board, part of the “Blue Pill” family, is a 32-bit ARM Cortex-M3 microcontroller board featuring a USB Type-C connector. It offers a cost-effective solution for embedded projects requiring solid performance, multiple I/Os, and standard peripherals.

✅ Specifications:

• Microcontroller: STM32F103C6T6 (ARM Cortex-M3 32-bit)

• Clock Speed: Up to 72 MHz

• Flash Memory: 32 KB

• SRAM: 10 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, 2 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

📦 Key Differences: STM32F103C6T6 vs C8T6

FeatureC6T6 (This Board)C8T6Flash32 KB64 KBSRAM10 KB20 KBPriceLowerSlightly HigherUse CaseSmaller code footprintLarger projects

📦 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
✔️ Compatible with Arduino IDE (stm32duino), PlatformIO, Keil, STM32CubeIDE
✔️ Low power consumption
✔️ Good for compact, cost-sensitive projects
✔️ 5V tolerant pins (most pins)

📦 Applications:
✔️ Embedded systems and IoT projects
✔️ Sensor data logging
✔️ Home automation
✔️ Robotics (with external drivers)
✔️ Educational microcontroller learning
✔️ Battery-operated devices (low power)
✔️ Replacement for Arduino Uno (32-bit performance)

🔧 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.

• Limited flash (32KB). For larger code, consider the C8T6 (64KB) variant.

• 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 for power and programming only (no USB Host).