The STM32F103C8T6 Development
Board, also known as "Blue Pill," features an ARM Cortex-M3 32-bit
processor running at 72MHz with 64KB Flash and 20KB RAM. It offers rich
peripherals, including UART, SPI, I2C, ADC, and PWM, making it ideal for embedded
and IoT applications.
Description:
The STM32F103C8T6
Development Board, commonly known as the Blue Pill, is a small, powerful,
and cost-effective microcontroller development board based on
the STM32F103C8T6 microcontroller from STMicroelectronics.
Core:
ARM Cortex-M3 32-bit RISC core.
Operating
Frequency:
Up to 72 MHz.
Memory:
Flash Memory: 64 KB (sometimes 128 KB due to
over-provisioning).
SRAM: 20 KB.
EEPROM: Emulated in flash memory.
The board features
a high-performance 32-bit processor with excellent power efficiency.
General Purpose
Input/Output (GPIO) Pins:
32 GPIO pins + 5 tolerant pins.
Communication
Interfaces:
USART/UART: For serial communication.
I2C: For communication with sensors and
peripherals.
SPI: For high-speed data transfer between
devices.
CAN (Controller Area Network): Useful for
automotive applications.
USB: The board supports USB 2.0 through
an onboard micro-USB connector, allowing it to function as a USB
device (e.g., a USB mouse or keyboard).
The board also
features 10 channels of ADC with a resolution of 12 bits.
Power:
Input voltage: 5V (via micro USB port).
Onboard 3.3V voltage regulator to supply the
microcontroller and peripherals.
The board is equipped with:
An 8MHz external crystal and
an internal 32.768 kHz crystal for the Real-Time Clock
(RTC), providing accurate timing and clock sources for the
microcontroller.
