STM32F103C8T6 32-Bit ARM Cortex-M3 Microcontroller (72MHz, 64KB Flash, LQFP-48)

Take your custom DIY projects to the next level with the STM32F103C8T6 32-bit microcontroller. Widely recognized as the brain behind the famous "Blue Pill" development boards, this IC is the perfect stepping stone for makers looking to upgrade from traditional 8-bit Arduino platforms. Running on a powerful ARM Cortex-M3 core at 72 MHz, it offers massively improved processing speed, making it highly capable of handling complex math, PID loops, and real-time sensor processing for custom flight controllers, ESCs, and 3D printer mainboards.

Packed with 64KB of Flash memory and 20KB of SRAM, it provides plenty of room for your code. Despite its incredibly low cost, it features professional-grade peripherals, including hardware USB 2.0 full-speed, a CAN bus interface, multiple fast UARTs, SPI, I2C, and dual 12-bit ADCs. Housed in an easy-to-solder LQFP-48 package, it is fully supported by the Arduino IDE, PlatformIO, and STM32Cube, making it one of the most accessible and versatile chips for robotics and advanced electronics.

Key Features:

• 32-Bit Power: The ARM Cortex-M3 core running at 72MHz delivers desktop-like multitasking and calculation speeds compared to traditional 8-bit AVR chips.

• Maker Favorite: Boasts a massive online community, countless open-source libraries, and full compatibility with the Arduino IDE (via STM32duino).

• Rich Peripherals: Includes advanced interfaces like hardware USB and CAN bus, perfect for building custom joysticks, telemetry nodes, or DroneCAN devices.

• Precision Analog: Features dual 1-microsecond 12-bit ADCs, ensuring highly accurate voltage, current, and analog sensor readings.

Specifications:

• Part Number: STM32F103C8T6

• Core Architecture: 32-Bit ARM Cortex-M3

• Clock Speed: Up to 72 MHz

• Memory: 64KB Flash / 20KB SRAM

• Operating Voltage: 2.0V to 3.6V (Many I/O pins are 5V tolerant)

• Package Type: LQFP-48 (SMD/SMT)