Nucleo-F334R8 board

The STM32 Nucleo boards allow anyone to try out new ideas and to quickly create prototypes with any STM32 MCU.

STM32 Nucleo boards can easily be extended with a large number of specialized application hardware add ons (Arduino Uno Rev3 and ST morpho connectors on Nucleo-144 and Nucleo-64, ST Zio connectors on Nucleo-144, Arduino Nano connectors on Nucleo-32). The STM32 Nucleo boards integrate an ST-Link debugger/programmer, so there is no need for a separate probe.

All STM32 Nucleo users have free access to the mbed online resources (compiler, C/C++ SDK, and developer community) at

At the moment I am using the NUcleo-F334R8, here are some of the features

nucleo f334r8
nucleo f334r8


STM32 microcontroller with LQFP64 package
Two types of extension resources
Arduino Uno Revision 3 connectivity
STMicroelectronics Morpho extension pin headers for full access to all STM32 I/Os
mbed-enabled (
On-board ST-LINK/V2-1 debugger/programmer with SWD connector
selection-mode switch to use the kit as a standalone ST-LINK/V2-1
Flexible board power supply
USB VBUS or external source(3.3 V, 5 V, 7 – 12 V)
Power management access point
Three LEDs
USB communication (LD1), user LED (LD2), power LED (LD3)
Two push buttons: USER and RESET
USB re-enumeration capability: three different interfaces supported on USB
Virtual Com port
Mass storage
Debug port
Supported by wide choice of Integrated Development Environments (IDEs) including IAR™, Keil®, GCC-based IDEs


Here is the pinout

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