STM32 NUCLEO-F103RB Development Board – STM32F103RBT6, ARM Cortex-M3, 128KB Flash, 20KB SRAM

Product Description:
The STM32 NUCLEO-F103RB is a versatile development board based on the STM32F103RBT6 microcontroller, featuring a 32-bit ARM Cortex-M3 core running at 72 MHz. With 128 KB Flash memory and 20 KB SRAM, this board delivers solid performance for a wide range of embedded applications.

Designed for rapid prototyping, the NUCLEO-F103RB is fully compatible with the Arduino Uno Rev3 shield ecosystem and features STMicroelectronics Morpho connectors, giving developers full access to the MCU’s I/O. It integrates an ST-LINK/V2 debugger/programmer with SWD output, eliminating the need for external tools.

Compatible with the mbed.org ecosystem, as well as popular IDEs like Keil, IAR, and GCC-based toolchains, this board provides an excellent development experience for beginners, hobbyists, and professionals alike.

Key Features:

• Microcontroller: STM32F103RBT6

  • ARM Cortex-M3, 32-bit core, 72 MHz

  • 128 KB Flash, 20 KB SRAM

• Analog Features:

  • 2 × 12-bit ADCs with 16 channels

• Timers: 7 total for precise control and timing

• Interfaces:

  • 3 × USART

  • 2 × SPI (18 Mbps)

  • 2 × I²C

  • CAN 2.0B

  • USB Full Speed

• Connectors:

  • Arduino Uno Rev3 compatible headers

  • ST Morpho headers for full pin access

• Debugger/Programmer: Onboard ST-LINK/V2 (can be used as standalone debugger with SWD output)

• Onboard Components:

  • 3 LEDs (Power, Communication, User)

  • 2 Buttons (RESET, User)

• USB Interfaces (Mini-USB):

  • Virtual COM port

  • Mass storage device

  • Programming/debugging interface

• Power Options: USB or external sources

Technical Specifications:

• Core: ARM Cortex-M3, 32-bit, 72 MHz

• Flash Memory: 128 KB

• SRAM: 20 KB

• ADC: 2 × 12-bit (16 channels)

• Timers: 7

• Interfaces: USART, SPI, I²C, CAN, USB FS

• Power Supply: USB or external (3.3V / 5V)

• USB Connector: Mini-USB

• Form Factor: Arduino Uno Rev3 + ST Morpho headers

Applications:

• Embedded systems prototyping

• IoT and communication projects

• Robotics and automation

• Data acquisition and control systems

• Education and training platforms

Package Includes:

• 1 × STM32 NUCLEO-F103RB Development Board

Why Choose the STM32 NUCLEO-F103RB?
The NUCLEO-F103RB provides the perfect balance of performance, expandability, and ease of use. With Arduino shield compatibility, ST Morpho connectors, and integrated ST-LINK debugging, it’s ideal for beginners and professionals working on ARM-based embedded projects.

Start building powerful embedded applications today with the STM32 NUCLEO-F103RB Development Board—reliable, flexible, and developer-friendly.