• Microcontroller features
• STM32F411RET6 in LQFP64 package
• ARM®32-bit Cortex®-M4 CPU with FPU
• 100 MHz max CPU frequency
• VDD from 1.7 V to 3.6 V
• 512 KB Flash
• 128 KB SRAM
• GPIO (50) with external interrupt capability
• 12-bit ADC with 16 channels
• RTC
• Timers (8)
• I2C (3)
• USART (3)
• SPI (5)
• USB OTG Full Speed
• SDIO

The Arduino headers are almost compatible, the main difference being that D14/D15 are not the same I/O as AD4/AD5 without board adjustments.

Arduino compatible headers

                PB8    D15  I2C1 SCL
                PB9    D14  I2C1 SDA
                       AVDD
NC                     GND
IOREF       LD2 PA5    D13  SPI2 SCK
RESET           PA6    D12  SPI2 MISO     
3V3             PA7    D11  SPI2 MOSI
5V              PB6    D10  SPI2 CS
GND             PC7    D9
GND             PA9    D8
VIN
                PA8    D7
                PB10   D6
AD0 PA0         PB4    D5
AD1 PA1         PB5    D4
AD2 PA4         PB3    D3
AD3 PB0         PA10   D2
AD4 PC1         PA2    D1   USART2 TX
AD5 PC0         PA3    D0   USART2 RX

Product page

MBED overview

Data brief

User manual