STM32 Blue Pill (F103C8T6) Development Board

The STM32 Blue Pill is a compact 32-bit development board built around the STMicroelectronics STM32F103C8T6 microcontroller. Its ARM Cortex-M3 core runs at 72 MHz, giving makers and students far more headroom than a classic 8-bit board while staying small enough for embedded builds. It suits anyone moving from an Arduino Uno to faster, peripheral-rich projects.

Specifications

• MCU: STM32F103C8T6, ARM Cortex-M3 at 72 MHz
• Memory: 64 KB Flash, 20 KB SRAM
• Logic level: 3.3V (several GPIO pins are 5V tolerant)
• I/O: up to 37 GPIO, 12-bit ADC, multiple hardware timers
• Interfaces: 2x SPI, 2x I2C, 3x USART, USB 2.0 full-speed (micro-USB)
• Dimensions: approx. 53 x 22 mm

Compatible with

Program it through the Arduino IDE with the STM32duino core, PlatformIO, or STM32CubeIDE. It uploads over an ST-Link V2, a USB-to-serial adapter, or USB DFU, and works with common 3.3V sensors, displays, and modules used across Arduino and ESP32 projects.

What you can build with it

• Data loggers and sensor hubs that need more speed and pins than an Uno
• Motor and servo controllers using its multiple hardware timers
• USB-connected instruments and HID devices

Built and Backed by Compoden

Every Compoden order includes our AI build companion, delivered by QR code, email, and WhatsApp, to help you wire, flash, and program STM32 Blue Pill (F103C8T6) Development Board into a working project. We have spent 10 years supplying boards and components to makers, schools, and engineering institutions across India. When a build does not behave as expected, our team and the AI companion help you debug it.