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Product Overview

The WT12 is a fully integrated Bluetooth 2.1 + EDR, class 2 module combining antenna, Bluetooth radio, and an on-board iWRAP Bluetooth stack. Bluegiga's WT12 constitutes the ideal solution for developers that want to quickly integrate Bluetooth wireless technology into their design without investing several months in Bluetooth radio and stack development. It uses Bluegiga's iWRAP Bluetooth stack, which is an embedded Bluetooth stack implementing 13 different Bluetooth profiles and Apple iAP connectivity. The WT12 combined with iWRAP Bluetooth stack and Bluegiga's excellent technical support designers ensure quick time-to-market and low development costs and risks.

Key Benefits

  • Fully integrated Bluetooth solution 
  • Low development costs
  • Fast time-to-market
  • Bluetooth, CE, FCC, and IC qualified 
    • Proven interoperability 
    • No qualification costs
  • On the field upgradeable
  • Co-existence with Bluegiga's Wi-Fi products


Radio  features:

  • Bluetooth v.2.1 + EDR
  • Bluetooth class 2 radio
  • Transmit power: +3 dBm
  • Receiver sensitivity: -86 dBm
  • Range: 30 meters line-of-sight
  • Integrated chip antenna

Hardware features:

  • UART and USB host interfaces
  • 802.11 co-existence interface
  • 6 software programmable IO pins
  • Operating voltage: 2.7V to 3.6V
  • Temperature range: -40° C to +85°C
  • Dimensions: 25.5 x 14.0 x 2.4 mm


  • Bluetooth
  • CE
  • FCC
  • IC
  • Japan
  • South Korea


  • Bluegiga iWRAP Bluetooth stack
    • 13 Bluetooth profiles
    • Apple iAP support
  • Bluetooth HCI over UART or USB

Documentation and Software

Download data sheets, SDKs / software releases, app notes, example applications, reference designs training material, user guides, reference designs, videos and more. Download our side-by-side product comparison guide.


iWRAP6 Presentation 1.69 MB

Training Material

Bluetooth Solutions for Apple iOS devices 781.06 KB
Bluetooth, Wi-Fi and Regulatory Certifications 1012.29 KB
Bluetooth End Product Listing (EPL) Guide 595.79 KB

Data Sheets

WT12 Bluetooth Module Data Sheet 817.59 KB
WT12 Evaluation Kit Data Sheet 456.35 KB
Chip Antenna Data Sheet 377.08 KB

User Guides

iWRAP6 User Guide and API Reference 2.75 MB
iWRAP5 User Guide and API Reference 2.17 MB
Firmware Update Guide 667.25 KB

Application Notes

Application Note: SPP Profile Configuration and Usage 474.92 KB
Application Note: HFP and HSP Profile Configuration and Usage 643.86 KB
Application Note: HID Profile Configuration and Usage 542.88 KB
Application Note: HDP Profile Configuration and Usage 1.07 MB
Application Note: iWRAP4 and iWRAP5 PBAP Profile Configuration and Usage 442.42 KB
Application Note: BGIO Profile Configuration and Usage 438.40 KB
Application Note: OBEX Profile Configuration and Usage 481.00 KB

Software Releases

Compare iWRAP Software Versions 416.55 KB
iWRAP 5.0.2 Software Release Notes 238.37 KB
iWRAP5.x and iWRAP6.x Release Notes 285.24 KB
iWRAP5.x and iWRAP6.x Software Releases 35.17 MB

Example Applications

iAP Reference Application 193.78 KB

Reference Designs

WT12 Development Kit Design Material 1.54 MB
USB Design Guide 627.50 KB
WT12 PADS Decal 1.96 KB
SPI Programming Cable Schematics 13.97 KB


WT12 Bluetooth Qualified Design Listing Details
WT12 Bluetooth Qualified Design Listing Details
WT12 CE Reports and DoC 2.74 MB
WT12 FCC and IC Reports and Grant 1.30 MB
WT12 Japan Test Report and Certificate 1.28 MB
WT12 Korea Reports and Certificate 2.14 MB
WT12 RoHS Test Report 568.56 KB
WT12 MTBF Calculation 35.80 KB
REACH Statement 30.82 KB
RoHS II Compliance Statement 33.35 KB

PC Tools

BGTerm Terminal Software (Supports iWRAP MUX Protocol) 7.20 MB
BlueSuite 2.5 (Blueflash, PSTool, BlueTest etc.) 6.79 MB
PCM Configuration Tool 103.5 KB
USB Development Driver for Windows 699.40 KB

The WT12 Evaluation Kit is designed to assess the WT12 Bluetooth module or prototyping and all piloting Bluetooth applications.

WT12 Development Kit Contents:

  • WT12 development board contains:
    • WT12 Bluetooth Module
    • RS232 and USB interfaces
    • PCM codec and 3.5mm audio jacks
    • 16 pin IO header
    • 5-9V Power supply
    • Debug connector
  • RS232 cable
  • Debug cable for firmware updates
  • Documentation
  • Pre-installed with latest iWRAP Bluetooth software

Part Number: EBWT12

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