Our AW100 Collaboration with Cloud2GND: Now Serving Both Sides of the Link with Greater Configurability

AW100 Firmware version 1.3 is a massive step forward for our Bluetooth Auracast™ module. Now with both source and sink functionality, range improvements, greater configurability of data rates, and a new tool to manage it all.

By Jonathan Kaye

Published on November 10, 2026

A Further Refined and Mature Platform for Auracast Designs 

For broadcast audio in public spaces, Bluetooth Auracast is quickly becoming the most exciting and most readily adoptable technology for the task. Our collaboration with Cloud2GND yielded the AW100 Auracast module, built on our reliable and popular BL5340PA long-range Bluetooth module and Cloud2GND’s design and engineering excellence. Previously, the AW100 was intended and functioned exclusively on the broadcast side of the link. Now, it can also act as a receiver, completing the loop and enabling different topologies and use cases than before.  

In addition, many changes have been made to configurable presets for audio quality and latency, new firmware updates for stability and usability, range improvements, and importantly a new GUI utility to manage it all. The end result is an even better, more robust and more mature offering that addresses the demands of the growing ecosystem of Auracast development. 

#1: Complete Auracast/PBP role support 

The Public Broadcast Profile (PBP) is the underlying Bluetooth profile that defines Auracast functionality. With firmware v1.3, the AW100 now fully supports the entirety of that profile’s functionality. This includes both source and sink roles for the connection, which is critical: for prototyping and development purposes, engineers can use the AW100 for both sides of the connection.  

Cloud2GND underwent significant development and internal testing before releasing the v1.3 firmware. The end result are significant gains in usability, performance, and stability. You can see the full release notes here, but the new functionality is accompanied by an expansion of the AW100 AT Command Set. This includes configurables for selecting a received language, monitoring sink state, connection parameters and startup behavior, and much more.  

#2: Improved Link Quality and Range 

In terms of clear numbers, here’s an impressive one: The AW100 is confirmed in internal testing to support a stable range over 325m of open air. That’s a truly noteworthy result, and while it’s not reflective of the indoor environments that may define most Aurawave applications, it does represent some real-world designs: public broadcast audio in outdoor environments, stadiums, public spaces, and others. Nearly 1/3 of a kilometer is about 3.6 American football fields. It’s a seriously large coverage area and could mean major utility for Auracast operations such as local public broadcasting, safety alerts, transportation updates, and much more.  

Broadcast source is now available with 6 configurable presets, including 16 KHz, 24 KHz, and 48KHz with either 3 or 5 transmissions of each frame. This allows developers to prioritize either low latency or high reliability, as is best suited to their application.  

#3: New GUI Configuration Tool 

For a better user experience and simplicity of configuration, Cloud2GND has released the AW100 Configuration Tool, available both for Windows and macOS. The user guide is available here. The tool aims to cover everything from board configuration to firmware updates all in one self-contained utility. This allows users to have complete control over their board settings without being required to use AT commands, and exposes all available settings in a simple, easy-to-use format.  

Consult our documentation for the features that fit your workflows, including connecting to boards, configuration of device name, inputs, outputs, and audio quality, changing from source to sink, and updating device firmware.  

AW100 Configuration Utility

Benefits of Firmware v1.3 

Broadly speaking, these improvements are useful to anyone developing with Auracast, especially teams who are new to Bluetooth development at large. By abstracting away the need to use AT commands in development, a pair of AW100 boards is one of the quickest ways to quickly go from opening the box to streaming audio.  

For teams who need a rapid Auracast implementation, the AW100 fits that role with broad configuration opens and with truly impressive range and reliability. Complete support for the entirety of the Audio Broadcast Profile means engineers can have greater confidence that the results they prototype in the lab translate to real life reliability in the field, built on Cloud2GND’s extensive expertise and validated approach.  

Ready to start prototyping your own Bluetooth Auracast solution? Please visit our website to learn more about the Aurawave AW100 board, see our documentation, download the configuration tool, and much more:  

https://www.ezurio.com/aw100-series  

Our AW100 Collaboration with Cloud2GND: Now Serving Both Sides of the Link with Greater Configurability