bluetooth 4.1 MP3 Decoder Module Audio Receiver Board Non-destructive Car Speaker Amplifier Conversion

Features:

 

Bluetooth 4.1 support

Support automatic connection function

Support WAV+APE+FLAC+MP3 lossless decoding

Stereo output

Onboard stereo 3W amplifier

Support USB Audio function

With TF card download

Support U disk, TF card playback

Support infrared remote control

 

Parameter characteristics:

Power Supply	3.7-5V
SNR	90dB
THD+N	-70dB
Crosstalk	-86dB
DNR	91dB
Support Profile	A2DP/AVCTP/AVDTP/AVRCP/HFP
LOS	>15M

Micro USB powered	Micro USB 5V power supply
USB Audio	Connect to a computer via a USB cable to use as an external sound card
U disk interface	Supports playing MP3/WAV/APE/FLAC files in U disk and supports FAT16/32 file format
LED indication	Bluetooth mode blue light is on, music mode blue light is blinking
TF card interface	Support for playing MP3/WAV/APE/FLAC files in TF card, support FATI6/32 file format
Infrared remote control	Support infrared remote control operation, the function is as defined below
AD key interface	Button interface, providing different resistance parameters to achieve different button functions
Bluetooth decoding IC	Decoder board master chip
3.5mm stereo output	Standard 3.5mm interface, output stereo sound source, can be plugged into headphones, connected to power amplifier and other equipment
Right channel 3W	Audio right channel output, can drive 3W speakers
Left channel 3W	Audio left channel output, can drive 3W speakers
3W*2 amplifier	Onboard 2 channel 3W amplifier for stereo drive 3W speaker
3.7-5V power supply pad	Realize external 3.7-5V power supply modification

Button and remote control function definition:

Button	Features
PREV/V-	Short press pre-song, long press volume decrease
P/MODE	Short press play and pause switch, "long press" mode switch
NEXT/V+	Short press next song, long press volume increase
MODE	TF card, U disk, Bluetooth mode switching
RPT	Single/cycle switching
EQ	Sound mode switching

Instructions:

 

1. Mode control

When the decoder board is not inserted into the U disk or TF card, the power-on default is Bluetooth mode; when the decoder board is plugged into the U disk or TF card, the power-on default is the music mode; the mode is switched by the remote control MODE button or button.

2. Music mode

The stored audio file can be played by inserting a USB flash drive or TF card.

3. Bluetooth mode

Switch mode to broadcast English "The bluetooth device is ready to pair Description Enter Bluetooth mode and wait for pairing; ?‹机 XY_BT of mobile phone Bluetooth search is the device name of the decoder board, click the connection, the decoder board prompts ??The bluetooth device is connected successfuly When the board is connected to the mobile phone, the music can be played.

4. USB Audio

USB Audio mode is the sound card mode. Connect the USB Audio cable to the USB Audio interface of the computer and the decoder board. Switch the mode prompt English "USB Mode" is the USB Audio mode. Open the music player of the computer to play music, you can play the music in the computer through the decoder board; if you insert the TF card, you can read and write the TF card;

Note: You must not insert a USB flash drive using USB Audio mode.

 

Precautions:

 

1. If the U disk is playing, it is recommended to use USB5V power supply (it is not recommended to use 3.7V lithium battery), because the early U disk does not support 3.7V.

2. The POWER interface must be used when using mobile power or computer power supply. You cannot use the USB Audio interface, otherwise the music in the USB flash drive cannot be played.

3. U disk or TF card, the decoder board only supports FAT16/FAT32 file system, does not support NTFS system.

Package includes:

1 x MP3 Decoder Module