Pre-Certified low power application processor module for Bluetooth® low energy v5.0
- PROCESSING POWER ON-DEMAND
- • Based on BlueNRG-2 Wireless Processor
- • Ultra-low power Cortex-M0 core @ 32MHz
- • Programmable embedded 256 kB Flash
- • 24 kB embedded RAM with data retention
- SCALABLE OFFER
- BlueNRG-M2SA
- • Included 10uH SMPS regulator and 32KHz LSE oscillator
- • Included high efficient chip antenna
- BlueNRG-M2SP
- • PCB Antenna
- ULTRA LOW CURRENT CONSUMPTION (BlueNRG-M2SA)
- • 0.9 uA @ Sleep / 7.5 mA @ RX /14.8 mA @ TX +8dBm
- CERTIFIED RF INTERFACE
- • CE/RED qualified, FCC/IC/TYPE modular approval certified
- • BT SIG End Product QDID
Overview
The BlueNRG-M2 is a Bluetooth® low energy system-on-chip application processor certified module, compliant with BT specifications v5.0 and BQE qualified. The BlueNRG-M2 module supports multiple roles simultaneously and can act at the same time as Bluetooth master and slave device. The BlueNRG-M2 is based on the BlueNRG-2 system-on-chip and entire Bluetooth low energy stack and protocols are embedded into module. The BlueNRG-M2 module provides a complete RF platform in a tiny form factor. Radio, embedded antenna and high frequency oscillators are integrated to offer a certified solution to optimize the time-to-market of the final applications. The BlueNRG-M2 can be powered directly with a pair of AAA batteries or any power source from 1.7 to 3.6 V.
Key Features
- • Bluetooth v5.0 compliant
- • Supports master and slave modes
- • Multiple roles supported simultaneously
- • LE data packet length extension
- • Embedded ST 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
- • Embedded BALF-NRG-02D3 integrated matched balun with harmonic filter
- • Interfaces
- • 1 x UART, 1 x I2C, 1xSPI, 14 x GPIO, 2 x multifunction timer, 10-bit ADC, watchdog and RTC, DMA controller, PDM stream processor, SWD debug interface
- • On-board chip antenna (BLUENRG-M2SA) or PCB antenna (BLUENRG-M2SP)
- • 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 available profiles
- • Certification
- • CE qualified
- • FCC, IC modular approval certified
- • TYPE qualified
- • BQE qualified
- • Pre-programmed UART bootloader
- • Operating supply voltage: from 1.7 to 3.6 V
- • Operating temperature range: -40 °C to 85 °C
- • Small form factor: 11.5 mm x13.5 mm x2 mm
- • Included in ST’s 10-year longevity program
Versions
- • BlueNRG-M2SA is power consumption optimized (with buck converter, 35KHz clock and chip antenna).
- • BlueNRG-M2SP is cost optimized (with PCB antenna and LDO).
Operating Modes
There are two possible software architectures:
1. Host-less mode (application processor): customer application runs on the BlueNRG-M2 module:
2. Hosted mode (network processor): the module is configured as network module controlled by an external host connected via SPI or UART. A project named DTM is available in the development kit that configures the BlueNRG-M2 module as a network module:
Evaluation Boards
- • X-NUCLEO-BNRG2A1: Bluetooth Low Energy expansion board based on the BLUENRG-M2SP module for STM32 Nucleo ODE, with BlueNRG-M2 Wireless SoC acting as Network Processor
- • STEVAL-IDB008V1M: Evaluation platform based on the BlueNRG-M2SA module
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 STEVAL-IDB008V1M provides a set of hardware resources for a wide range of application scenarios: sensor data (accelerometer, pressure and temperature sensors), remote control (buttons and LEDs) and debug message management via USB virtual COM. Three power options are available (USB only, battery only and external power supply plus USB) for application development and testing flexibility.
Resources
Social Distancing with Bluetooth Low Energy
Application Note: Porting an existing project from the BlueNRG-M2SA module to the BlueNRG-M2SP module
Quick Reference Guide for Bluetooth Low Energy
Webinar: Speed up your IoT design with ST’s new Bluetooth Low Energy Modules
Extended Product Family: BLUENRG-M0A and
BLUENRG-M0L
BlueNRG-M0A and BlueNRG-M0L modules are built around the BlueNRGMS BLE4.2 network processor chip, as BlueNRG-M2SA and BlueNRG-M2SP modules are built around BlueNRG-2 BLE5.0 wireless processor chip. A comparison table is shown below:
Backward Compatibility With Legacy Modules
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