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STM32 Blue Pill (STM32F103C8T6)
STMicroelectronicsSTM32F103C8T6
The 'Blue Pill' is a low-cost STM32F103C8T6 (Cortex-M3, 72 MHz) dev board with two 20-pin headers and a 4-pin SWD header. 3.3V logic (most pins 5V-tolerant). Rich peripherals: 3x USART, 2x SPI, 2x I2C, CAN, USB, and 10 ADC channels.
In stock
Specifications
0No specs listed.
Pinout
42| Pin | Name | Functions | Notes |
|---|---|---|---|
| VB | VBAT | POWER | Battery backup for RTC |
| PC13 | PC13 | GPIO | Onboard LED (active LOW); low-current pin |
| PC14 | PC14 | GPIO | OSC32_IN (32 kHz xtal) |
| PC15 | PC15 | GPIO | OSC32_OUT (32 kHz xtal) |
| PA0 | PA0 | ADCGPIO | ADC0, WKUP, TIM2_CH1 |
| PA1 | PA1 | ADCGPIO | ADC1, TIM2_CH2 |
| PA2 | PA2 | ADCUART | ADC2, USART2 TX |
| PA3 | PA3 | ADCUART | ADC3, USART2 RX |
| PA4 | PA4 | ADCSPI | ADC4, SPI1 NSS |
| PA5 | PA5 | ADCSPI | ADC5, SPI1 SCK |
| PA6 | PA6 | ADCSPI | ADC6, SPI1 MISO, TIM3_CH1 |
| PA7 | PA7 | ADCSPI | ADC7, SPI1 MOSI, TIM3_CH2 |
| PB0 | PB0 | ADCGPIO | ADC8, TIM3_CH3 |
| PB1 | PB1 | ADCGPIO | ADC9, TIM3_CH4 |
| PB10 | PB10 | UARTI2C | USART3 TX, I2C2 SCL |
| PB11 | PB11 | UARTI2C | USART3 RX, I2C2 SDA |
| R | RESET | GPIO | NRST reset (active LOW) |
| 3.3V | 3.3V | POWER | 3.3V supply |
| GND | GND | GND | Ground |
| GND | GND | GND | Ground |
| GND | GND | GND | Ground |
| GND | GND | GND | Ground |
| 3.3V | 3.3V | POWER | 3.3V supply |
| PB12 | PB12 | SPIGPIO | SPI2 NSS, I2C2 SMBA |
| PB13 | PB13 | SPIGPIO | SPI2 SCK |
| PB14 | PB14 | SPIGPIO | SPI2 MISO |
| PB15 | PB15 | SPIGPIO | SPI2 MOSI |
| PA8 | PA8 | GPIO | TIM1_CH1, MCO |
| PA9 | PA9 | UART | USART1 TX, TIM1_CH2 |
| PA10 | PA10 | UART | USART1 RX, TIM1_CH3 |
| PA11 | PA11 | GPIO | USB D- (CAN RX) |
| PA12 | PA12 | GPIO | USB D+ (CAN TX) |
| PA15 | PA15 | GPIO | JTDI (remap); SPI1 NSS |
| PB3 | PB3 | GPIO | JTDO (remap); SPI1 SCK |
| PB4 | PB4 | GPIO | NJTRST (remap); SPI1 MISO |
| PB5 | PB5 | GPIO | SPI1 MOSI, I2C1 SMBA |
| PB6 | PB6 | I2CUART | I2C1 SCL, USART1 TX (remap), TIM4_CH1 |
| PB7 | PB7 | I2CUART | I2C1 SDA, USART1 RX (remap), TIM4_CH2 |
| PB8 | PB8 | GPIO | CAN RX (remap), TIM4_CH3 |
| PB9 | PB9 | GPIO | CAN TX (remap), TIM4_CH4 |
| PA13 | PA13 (SWDIO) | GPIO | SWD data (SWD header) |
| PA14 | PA14 (SWCLK) | GPIO | SWD clock (SWD header) |
Interactive pinout
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STM32F103C8T6
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