![st nucleo f401re st nucleo f401re](https://img.dxcdn.com/productimages/sku_326903_3.jpg)
One is used for STM which are male pins and the second are female pins used for Arduino. In STM32 Nucleo there are two types of connection pins.
#ST NUCLEO F401RE 32 BIT#
It has an ARM Cortex 32 Bit microcontroller that comes only in a single package LQFP.
![st nucleo f401re st nucleo f401re](https://pbs.twimg.com/media/BmosfWjCEAAmafK.jpg)
STM32 Xnucleo includes an onboard USB TO UART interface based on CP2102. STM32 Nucleo F401RE is a low cost and quick to use a development board. System requirements: Windows PC (XP, Vista, 7, 8) USB Type A to mini-B-USB cable STM32 Development Board, Supports Arduino, Compatible with NUCLEO-F401RE.IDE-support (Integrated Development Environment) includes IAR, Keil, GCC-based IDEs.Interfaces supported on USB: Virtual COM port mass storage debugging port.Three LEDs: USB communication user, power.Power supplies: USB VBUS or external source (3.3 V 5 V 7 - 12 V).Mode selection switch for using the kit as a standalone ST-LINK/V2-1.Debugger/programming device ST-LINK/V2-1 with SWD connector.Additional connectivity: Arduino™ Uno Revision 3 connectivity and STMicroelectronics Morpho connection.STM32 Nucleo developer board with STM32F401RE MCU, 512-KB flash memory.The mbed-enabled ARM® board has an integrated ST-LINK/V2 circuit debugger/programming device (SWIM/SWD) to connect to the on-board STM32F401RE or to an appropriate STM32 MCU in your application. The Nucleo ST Morpho pin bases increase the functions of the Open Development Platform (ODP).
![st nucleo f401re st nucleo f401re](https://i.ytimg.com/vi/xRguj3H0bo8/maxresdefault.jpg)
The Nucleo development board connects to the Arduino™ and supports most shields. Easy-to-use development platform, offering a fast solution for evaluation and development with any Arm Cortex™ M4 processor-STM32 F4 32-bit flash microcontrollers in the LQFP64 package. The STMicroelectronics STM32F401RE Nucleo board allows you to create and evaluate your own prototypes with the STM32 F4 family of high-performance microcontrollers in an integrated application.