Exploring the Nucleo L476RG Board with the STM32 Microcontroller

by Müller | Nov 15, 2025 | Hardware & IoT | 0 comments

The STM32 Nucleo L476RG board offers a solid platform for testing new ideas and building prototypes with STM32 microcontrollers. Compatible with Arduino™ and featuring ST Morpho headers, it allows easy expansion with a variety of shields.

Microcontroller Characteristics

At the heart of the board is the STM32L476RGT6 (LQFP64), equipped with:

  • ARM® Cortex®-M4 32-bit CPU running at up to 80 MHz
  • 1 MB of Flash memory
  • 128 KB of SRAM
  • ART Accelerator™ — direct Flash execution with zero wait states
  • Connectivity interfaces: SPI, I2C, USART, USB OTG
  • Peripherals: timers, watchdogs, TRNG, external interrupts via GPIO

Nucleo Features

  • Arduino Uno R3 compatibility — support for standard shields
  • ST Morpho headers — full access to all STM32 pins
  • Integrated ST-LINK/V2-1 — no external programmer required

Pinout and Expansion

The board’s detailed pinout can be found in the ARMmbed documentation.

  • Arduino-compatible headers
  • ST Morpho headers for complete I/O access

Supported Shields and Compatibility

The board supports ST and third-party shields, allowing you to add wireless connectivity, extra sensors, and various interfaces.

Glossary of Technical Terms

  • Microcontroller: a compact computer dedicated to specific tasks.
  • GPIO: configurable pins for digital input/output.
  • SPI: fast communication protocol for peripherals.
  • I2C: protocol for communicating with low-speed sensors.

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