Affordable and flexible platform to ease prototyping using a STM32L053R8T6 microcontroller.


The STM32 Nucleo board provides an affordable and flexible way for users to try out new ideas and build prototypes with any STM32 microcontroller line, choosing from the various combinations of performance, power consumption and features.

The Arduino™ connectivity support and ST Morpho headers make it easy to expand the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.

The STM32 Nucleo board does not require any separate probe as it integrates the ST-LINK/V2-1 debugger/programmer.

Microcontroller features

Nucleo features

Nucleo pinout

Arduino-compatible headers


Shared UART on pins D0 and D1

These pins are shared with the PC Serial connection via STLink. If you need to use these pins independently, see this page:

Morpho headers

These headers give access to all STM32 pins. /media/uploads/bcostm/nucleo64_revc_l053r8_mbed_pinout_v2_morpho.png


Only the labels written in blue/white or green/white (i.e. PA_4, PB_5, A0, D14, LED1...) must be used in your code. The other labels are given as information (alternate-functions, power pins, ...).

You can find more details on the available pins and labels in the following files (link to the latest mbed-dev library version):

Supported shields

ST X-NUCLEO boards

See Matrix of tested boards.

Other Non-ST boards

See here.

Getting started

This video shows how to get started with ARM mbed Integrated Development Environment using STM32 Nucleo platform:

Nucleo ST-LINK/V2 driver installation and firmware upgrade

  • Install the ST-LINK/V2 driver before connecting the Nucleo board to your PC the first time. Follow this LINK for all details.
  • For optimum performances, ensure that the Nucleo ST-LINK/V2 firmware is upgraded to the latest version. Follow this LINK for all details.

Technical references

For more information, please refer to:

Known limitations

The following section describes known limitations of the platform. Note that general issues are tracked into the mbed repository available on GitHub.

Note: Nucleo-L053R8 platform doesn't support RTOS due to its flash size. Please do not import mbed-rtos library into your project.

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Discussion topics

TopicRepliesLast post
The mbed mass storage not working in Windows 10.0.14393 0 03 Aug 2016 by Tze Siang Poh
Why doesn't NUCLEO L053R8 start my program? 0 28 Sep 2015 by Helmut Stettmaier
Special note about : SD Card Shield v4.0b by Seeed Studio 0 02 Apr 2015 by Camille Muller
Correct SPI interfaces in the Nucleo Arduino figure? 1 16 Nov 2014 by Chuck McManis


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