NUCLEO-G491RE development board

The NUCLEO-G491RE Development Board from STMicroelectronics is a powerful and versatile STM32 Nucleo-64 board built around the STM32G491RE microcontroller (ARM® Cortex®-M4 core running at 170 MHz). It provides high computational performance, rich peripherals, and flexible power options, making it ideal for embedded system development, IoT, motor control, and industrial automation applications.

This Nucleo board features Arduino Uno V3 and ST morpho connectors for easy hardware expansion, supporting a wide range of shields and accessories. Developers can program and debug using the ST-LINK/V2-1 interface (built-in), and the board is compatible with STM32CubeIDE, Keil MDK, IAR EWARM, and Arduino IDE (via STM32duino).

Its robust design, low power consumption, and comprehensive software ecosystem make it a go-to choice for engineers, students, and professionals seeking a reliable and cost-effective STM32 prototyping platform.

Key Features:

• Microcontroller: STM32G491RE (ARM Cortex-M4 @ 170 MHz)

• Flash Memory: 512 KB

• SRAM: 112 KB

• Operating Voltage: 3.3 V (5 V tolerant I/Os)

• Connectivity:

  • USB 2.0 Full Speed

  • USART, I²C, SPI, CAN, I²S, ADC/DAC

  • Timer and PWM outputs

• Connectors: Arduino Uno V3 and ST morpho headers

• On-board Debugger: ST-LINK/V2-1 (USB interface)

• Power Supply: USB VBUS (5 V) or external sources

• Form Factor: Nucleo-64

• Software Compatibility: STM32CubeIDE, Keil, IAR, Arduino IDE

• Operating Temperature: –40°C to +85°C