Aurawave AW100

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  1. Introduction
  2. Terminology
  3. Product Overview
    1. Modes of Operation
    2. Key Features
    3. Aurawave Audio Framework Capabilities
    4. Hardware Features
    5. Interfaces
    6. Part Numbers and Options
  4. AW100-A Hardware Specifications
    1. Mechanical Specifications
    2. System Architecture
    3. Electrical Specifications
    4. 40-Pin Connector Pinout
  5. AW100-D Hardware Specifications
    1. Mechanical Specifications
    2. System Architecture
    3. Electrical Specifications
    4. 40-Pin Connector Pinout
  6. Radio Characteristics
  7. Aurawave Audio Framework
    1. Software Architecture
    2. AT Command Interface
    3. Audio Devices
    4. USB Interface
    5. Audio Latency
    6. Firmware Updates
    7. Factory Default Configuration
    8. Button Functions
    9. LED Indications
  8. References
  9. Additional Information - Cloud2GND
  10. Additional Information - Ezurio
Aurawave Board453-00068-K2453-00068-K3

Introduction

This document applies to the following Aurawave firmware:

  • v1.3.0, tag 1.3.0-63f2ff1 (reported by AT+CGMR)

It describes the Cloud2GND Aurawave AW100 series modules and the Aurawave Audio Framework firmware that runs on them. It gives the hardware features, the interfaces, the electrical and mechanical specifications and the radio characteristics of each variant. It also describes what the firmware does with the hardware: the audio devices, the AT command interface, the firmware update, the button and the LED.

The AT commands are described in the Aurawave AW100 AT Command Specification for the same firmware version.

Terminology

TermDefinition
Auracast™Bluetooth LE Audio broadcast that any number of receivers in range can join
Aurawave Audio FrameworkThe Cloud2GND firmware of the AW100. It runs the LE Audio functions and the AT command interface.
AT command interfaceThe serial command interface of the AW100. A host configures and controls the AW100 with it.
BAPBasic Audio Profile, the Bluetooth profile for LE Audio streams, including broadcast
BIGBroadcast Isochronous Group: the set of BISes one Broadcast Source transmits
BISBroadcast Isochronous Stream: one audio stream within a BIG
Broadcast CodeThe key of an encrypted broadcast. A receiver needs it to play the broadcast.
Broadcast SinkA device that receives a broadcast and plays it
Broadcast SourceA device that transmits a broadcast
CAPCommon Audio Profile, the Bluetooth profile that coordinates LE Audio streams
CodecThe AK4558 audio converter on the AW100-A, or the LC3 audio coding of LE Audio
DFUDevice firmware update. In DFU mode the bootloader takes a new firmware image over USB.
I2SInter-IC Sound, a serial bus for digital audio
LC3Low Complexity Communication Codec, the audio codec of LE Audio
MCUmgrThe management protocol the bootloader uses to receive firmware images
PBPPublic Broadcast Profile, the Bluetooth profile of Auracast broadcasts
QSPIQuad Serial Peripheral Interface
SWDSerial Wire Debug, the programming and debug interface of Arm processors
TRSTip-ring-sleeve, the 3.5 mm stereo audio connector
UARTUniversal asynchronous receiver-transmitter, a wired serial port
USB CDCUSB Communications Device Class: the serial port of the AW100 over USB
USB Audio Class 2The USB standard for audio devices that the AW100 follows

Product Overview

The AW100 is a Bluetooth® LE Audio module for Auracast™ broadcasts. With the Aurawave Audio Framework firmware it works as a Broadcast Source or as a Broadcast Sink. As a source it broadcasts the audio of its USB, analog or I2S input to any number of receivers. As a sink it receives a broadcast and plays it on its USB, analog or I2S output.

A host configures and controls the AW100 with AT commands over USB or over the UART of the 40-pin header. A configuration saved on the AW100 starts by itself at every power-up. The AW100 can therefore work alone once it is set up, or as the LE Audio part of a larger product.

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