WT32 Bluetooth Audio Module

Bluetooth

Version

2.1 + EDR (Bluetooth Classic)

Security

Secure Simple Pairing and Safer+

BR/EDR connections

7

LE connections

0

Radio

Frequency

2.402GHz to 2480GHz

Modulations

GFSK, π/4-DQPSK and 8DPSK

Transmit power

+7 dBm

Receiver sensitivity

-87 dBm

Typical line-of-sight range

20-40 meters

Antenna

Integrated ceramic chip or W.FL connector

Dimensions

Length

23.90 mm

Width

15.90 mm

Height

2.50 mm

Hardware

Host interfaces

UART

GPIO

10 programmable GPIOs

AIO

2 x AIO

Led

1 x Led driver

Battery charger

On module charger for Li-Ion or Li-Poly batteries

802.11 co-existence

Unity-3, Unity-3e, Unity+

Power supply

1.7 to 3.6V

Debug interface

Available

Audio Features and Interfaces

Codec

Built in 16-bit stereo codec

Analog interfaces

Dual ADC and DAC

Microphone

Single microphone input

Amplifier

Integrated amplifiers for driving 16Ω speakers

Software codecs

SBC, mSBC, aptX and AAC

Echo cancellation

CVC 5th generation

Certifications

Bluetooth

Bluetooth controller subsystem

CE

EN300328, EN301489

FCC

FCC part 15 modular qualification

IC

Industry Canada modular qualification

Japan

ARIB-STD-T66

Software

iWRAP

iWRAP Bluetooth stack supported