Performance Beyond Arduino
The Blue Pill is the preferred choice for engineers and students who have outgrown the limitations of the Arduino Uno. Operating at 72MHz, it provides a massive jump in speed and features a 12-bit ADC for much finer sensor resolution. At RoboShop BD, we ensure these boards are sourced with high-quality components, including the correct 100kΩ pull-up resistor on the USB line to ensure stable communication with your PC.
Prototyping and Industry Standards
This board is fully compatible with the Arduino IDE (via the STM32duino core) as well as professional environments like Keil, IAR, and VS Code. With its compact breadboard-friendly design, it’s perfect for everything from simple LED control to complex real-time systems involving CAN bus communication, motor control, or high-speed data logging.
Key Features
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Original Imported Chipset: Guaranteed compatibility with official STMicroelectronics software and debugging tools.
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32-bit ARM Cortex-M3: High-speed 72MHz core for demanding computational tasks.
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Rich Peripheral Set: Includes 2x I2C, 2x SPI, 3x USART, and a dedicated CAN 2.0B interface.
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12-bit Analog Precision: 10 channels of high-resolution ADC for accurate data acquisition.
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Onboard Indicators: Features a Power LED and a programmable user LED (connected to PC13).
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Dual Clock Sources: 8MHz main crystal for system clock and 32.768kHz crystal for RTC (Real Time Clock).
Technical Specifications
| Specification | Details |
| Microcontroller | STM32F103C8T6 (Imported Original) |
| Core Architecture | ARM 32-bit Cortex-M3 |
| Clock Speed | 72 MHz (Maximum) |
| Flash Memory | 64 KB |
| SRAM | 20 KB |
| Operating Voltage | 2.0V – 3.6V (Onboard 3.3V Regulator) |
| Digital I/O Pins | 37 Pins (Many are 5V Tolerant) |
| PWM Channels | 15 Channels |
| Interface Ports | Micro USB (Power/Comm), SWD (Programming) |
| Dimensions | 53mm x 22mm |







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