STM32 "Blue Pill" Development Board — STM32F103C8T6 ARM Cortex-M3

The popular STM32 "Blue Pill" — a powerful 32-bit ARM Cortex-M3 development board at a fraction of the cost of official ST Discovery kits. Program with Arduino IDE (via STM32duino), PlatformIO, STM32CubeIDE, or MicroPython.

Key Specifications

• MCU: STM32F103C8T6 — ARM Cortex-M3, 72MHz
• Flash: 64KB (many chips have 128KB accessible)
• RAM: 20KB SRAM
• GPIO: 37 pins (most 5V tolerant)
• Interfaces: 2x SPI, 2x I2C, 3x USART, USB 2.0, CAN, ADC, PWM
• Onboard: 8MHz crystal, 32.768kHz RTC crystal, reset button, user LED (PC13)
• Power: 3.3V regulated onboard, accepts 5V via USB or header

What's Included

• 1x STM32F103C8T6 "Blue Pill" board
• 2x 20-pin male headers (unsoldered)

Note: Headers are NOT pre-soldered. Soldering required.

Also Available — Blue Pill Bundles

• 2-Pack Blue Pill ($19.99): ebay.com/itm/292145345975
• 3-Pack Blue Pill ($27.69): ebay.com/itm/292145357131
• Blue Pill + ST-Link V2 ($20.59): ebay.com/itm/292142597005
• 2x Blue Pill + ST-Link V2 ($30.99): ebay.com/itm/292168190439
• Blue Pill + ST-Link + 2x Logic Level ($24.99): ebay.com/itm/292286013429
• Blue Pill Headers Soldered + ST-Link ($23.89): ebay.com/itm/294842435930

Other STM32 Boards

• Black Pill STM32F411 100MHz ($15.99): ebay.com/itm/294753874196
• Smart Core STM32F103 ($14.99): ebay.com/itm/292128814879
• ST-Link V2 Mini Programmer ($7.93): ebay.com/itm/292145372700

Recommended Accessories

• Logic Level Converter 3.3V/5V 2-Pack ($7.09): ebay.com/itm/292247896200
• 0.96" OLED Display I2C ($9.89): ebay.com/itm/292120482727
• 1-Channel 5V Relay Module ($6.69): ebay.com/itm/292160475497
• 2-Channel 5V Relay + Logic Level ($12.99): ebay.com/itm/292324788079
• Breadboard + Power Supply ($8.99): ebay.com/itm/292168148636
• Vibration Sensor 3-Pack ($8.99): ebay.com/itm/292219738627

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Multi-item discount: 10% off 3 items, 15% off 5+ items.

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