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Bluetooth LE 5.3

System-on-Chip for accurate indoor tracking

The most cost-effective solution for locator tags in RTLS
(Real-time locating system), asset tracking and item finding applications

The BlueNRG-LPS is a programmable Bluetooth ® Low Energy 5.3 SoC embedding ST's state-of-the-art 2.4 GHz proprietary RF radio IPs. It combines unparalleled performance with best-in-class ultra-low-power figures to ensure end-devices can achieve very long battery lifetimes.

Key features

  • Bluetooth® Low Energy 5.3 specifications
  • Arm® Cortex® -M0+
  • 192 Kbytes of Flash memory / 24 Kbytes of RAM
  • + 8 dBm max output power
  • 2 Mbps data rate
  • Long-range BLE (Coded PHY)
  • Advertising extension
  • Angle of arrival / Angle of departure
  • Up to 128 connections
  • Integrated balun and minimized BOM for cost optimization
  • Ultra-low power consumption
  • -40 to +105 °C operating temperature
  • VQFN32 package (5 x 5 mm, 0.5 mm pitch)
  • WLCSP36 (2.652 x 2.592 mm, 0.40 mm pitch)

Application examples

Smart tools
and appliances
Lighting and
building automation
People and
animal tracking

BlueNRG-LPS enables real-time positioning with centimeter accuracy

The Bluetooth 5.3 core specification introduces Direction Finding features to enhance the performance of Bluetooth location service solutions. These features allow devices to determine the direction of a Bluetooth signal, enabling the development of powerful, low-cost, and real-time locating systems, with location accuracy down to tens of centimeters.

BLE direction finding for indoor tracking

Looking for a low-cost Real-Time Location System (RTLS) solution? The Direction Finding feature of Bluetooth 5.1 is for you!

How to test & prototype with BlueNRG-LPS

Choose a development kit to start testing the features of the BlueNRG-LPS SoC


Evaluation platform based on the BlueNRG-LPS System-on-Chip.


This software package provides a Bluetooth® LE binary library with a complete set of APIs and related events callbacks to access the Bluetooth® LE functionality offered by the BlueNRG-LPS device. It contains a full set of demonstration applications allowing to target several Bluetooth LE scenarios using the BlueNRG-LPS device.

STSW-QUUPPA-ETAG: ST Quuppa tag emulation

The STSW-QUUPPA-ETAG evaluation software package allows building a Quuppa tag emulation device that features the location-tracking capability, multiple sensor data provisioning, and a framework for custom back-channel commands to be used through the Quuppa proprietary positioning system.


This package provides the GCC toolchain-based WiSE-Studio Eclipse IDE, supporting the BlueNRG-LPS and associated evaluation platforms. Available for free, and for Windows, Linux, MAC OS.


STSW-BNRG001 is a design tool to help developers estimate device current consumption. It can predict the current consumption of the BlueNRG-LPS SoC under different conditions.


The STSW-BNRGUI software package consists of a graphical user interface (GUI) PC application that can be used to interact and evaluate the capabilities of the BlueNRG-LPS Bluetooth Low Energy System-on-Chip.


The STSW-BNRGFLASHER is a SW package containing a standalone PC utility, which allows the BlueNRG-LPS System-on-Chip device Flash to be read, mass erased, written and programmed. It supports BlueNRG-LPS Flash access through both UART and SWD interfaces using, respectively, the internal device UART bootloader and the standard SWD interface through HW SWD programming/debugging tools (CMSIS-DAP, ST-Link/V2, J-Link).

On-demand webinar: How to design low-end location services using the Bluetooth Direction Finding feature and our BlueNRG-LPS system-on-chip

  • Presentation of the BlueNRG-LPS System-on-Chip and its development ecosystem
  • Overview of the Bluetooth 5.3. Direction Finding feature
  • Basics of angle of arrival (AoA) and angle of departure (AoD) concepts
  • Design considerations for enhanced Bluetooth location services
  • Hands-on session with evaluation platform and SDK with example code