X-NUCLEO-BNRG2A1

The X-NUCLEO-BNRG2A1 expansion board provides Bluetooth low energy connectivity for developer applications and can be plugged onto an STM32 Nucleo development board (e.g., NUCLEO-L476RG with ultra-low power STM32 microcontroller) through its Arduino UNO R3 connectors.

The expansion board features the Bluetooth® v5.0 compliant and FCC certified BlueNRG-M2SP application processor module based on the ST BlueNRG-2 System-on-Chip. This SoC manages the complete Bluetooth low energy stack and protocols on its Cortex-M0 core and programmable Flash, which can accommodate custom applications developed using the SDK. The BlueNRG-M2SP module supports master and slave modes, increased transfer rates with data length extension (DLE), and AES-128 security encryption. The X-NUCLEO-BNRG2A1 interfaces with the STM32 Nucleo microcontroller via SPI connections and GPIO pins, some of which can be configured by the hardware.

Key Features

• Based on the BlueNRG-M2SP module FCC certified module (FCC ID: S9NBNRGM2SP and IC: B976C-BNRGM2SP)
• Compatible with STM32 Nucleo boards
• Equipped with Arduino UNO R3 connector
• Scalable solution, capable of cascading multiple boards for larger systems
• Free comprehensive development firmware library and examples for BlueNRG-2 compatible with STM32Cube
• BlueNRG-M2SP:
  • Bluetooth v5.0 compliant
  • Supports master and slave modes
  • BLE data packet length extension
  • Embedded BALF-NRG-02D3 integrated matched balun with harmonic filter
• Interfaces:
  • 1 UART, 1 I²C, 1 SPI, 14 GPIOs, 2 multifunction timers, 10-bit ADC, Watchdog & RTC, DMA controller, PDM stream processor, SWD debug interface
• Small form factor: 11.5mmx13.5mm
• Complemented with Bluetooth low energy protocol stack library (GAP, GATT, SM, L2CAP, LL)
• AES security co-processor
• Bluetooth low energy SDK with a wide range of profiles
• Embedded BlueNRG-2 BLE SoC:
  • High performance, ultra-low power Cortex-M0 32-bit based core
  • Programmable embedded 256 KB Flash
  • 24 KB embedded RAM with data retention
  • Up to +8 dBm available output power
  • Down to -88 dBm Rx sensitivity
  • Up to 96 dB link budget with excellent link reliability

Example applications

• mbed-os-example-ble

Further information and ordering

The X-NUCLEO-BNRG2A1 can be purchased directly from ST web site.
The page provides additional documents like a user manual, a quick start guide, schematics, gerber files and bill of materials.