Bluegiga WT32 Bluetooth Audio Module

Simply Bluetooth Audio

The WT32 is a Bluetooth® 2.1 + EDR module dedicated for Bluetooth audio applications. In addition to Bluetooth radio, antenna and iWRAP Bluetooth stack, the WT32 contains a DSP processor, a stereo audio codec and a battery charger making it ideal for portable battery Bluetooth stereo or hands-free audio applications. The WT32 constitutes an ideal solution for developers that want to quickly integrate the latest Bluetooth audio technologies into their design without investing several months into Bluetooth radio and stack development. In addition to the standard Bluetooth audio profiles, the WT32 can also support aptX® audio coding technology, offering outstanding Bluetooth Stereo audio quality, CVC audio enhancement software for hands-free applications and Apple iAP profile enabling OEMs, to create really unique and differentiated audio products.
For new designs we recommend the pin compatible WT32i Bluetooth Audio Module.
Bluegiga WT32 Bluetooth Audio Module 
Module Benefits

    Fully Integrated Bluetooth Solution:

  • Low development costs
  • Fast time-to-market
  • Other Bluetooth Profiles

  • Bluetooth SPP and Apple iAP profiles

    Bluetooth Qualified:

  • Proven interoperability
  • No qualification costs
  • Co-existence with Bluegiga's Wi-Fi Products

    Audio Profiles and Features:

  • Integrated A2DP, AVRCP, HFP v.1.6, HSP and PBAP
  • On-board DSP and stereo codec
  • aptX and CVC software
  • On the Field Upgradeable

Module Specifications

    Radio Features:

  • Bluetooth v.2.1 + EDR
  • Bluetooth class 2 radio
  • Transmit power: +7 dBm
  • Receiver sensitivity: -86 dBm
  • Integrated chip antenna or W.FL connector
  • Audio Features:

  • Analog, I2S, PCM and SPDIF interfaces
  • Microphone input
  • Integrated DSP
  • Integrated stereo audio codec

    Hardware Features:

  • UART host interfaces
  • 802.11 co-existence interface
  • 10 software programmable IO pins
  • Li-Ion and Li-Poly battery charger
  • Operating voltage: 1.8 V to 3.6 V
  • Temperature range: -30 °C to +85 °C
  • Dimensions:

  • Dimensions: 35.75 mm x 14.50 mm x 2.6 mm


  • Bluetooth
  • CE
  • FCC and IC
  • Japan
  • Software:

  • Bluegiga iWRAP Bluetooth stack
  • 13 Bluetooth profiles
  • Apple iAP support
  • aptX audio codec
  • CVC echo cancellation


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Data Sheet (2)

WT32 Data Sheet
2.194/7/20161597 kB
WT32 Evaluation Kit Data Sheet
2.24/7/20161268 kB

Reference Manual (2)

iWRAP5 API Reference Manual for WT
1.294/14/20162277 kB
iWRAP6 API Reference Manual for WT
3.44/14/20162879 kB

User Guides (4)

Application Notes (8)

White Papers (2)

Miscellaneous (14)

Software (6)

Reference Designs (2)

WT32 Development Kit Design Material
1110 kB
WT32 PADS Decal
1 kB

Schematics/Layout (3)

Training (6)