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Description 

This module is highly integrated Bluetooth module which used for Economical Bluetooth stereo audio solutions, 2.4GHz ISM RF transceiver, flash memory, on-board antenna, and high-quality 24-bit stereo audio CODEC.

Specification

• Operating Voltage : 3.3V (3.0V~3.6V)
• Frequency : 2.402~2.480 GHz
• UART Interface : TX,RX (default -1152000,N,8,1

                             Baudrate 115200,N8,1

                             5,6,7,8 data bit character.

• Interface : GPIO,I2C ,I2S (audio interface),ADC, Audio CODEC, PWM control

• Operating Temperature : -20 deg to +70deg.
• Board Dimensions : 13 X 26.9 X 2.4 mm