Bluetooth audio receiver board lossless music wav ape flac mp3 decoding module stereo speaker amplifier
Power Supply: 3.7-5V
Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP
1. If the U disk is playing, it is recommended to use USB 5V 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.
Micro USB Powered: Universal Micro USB 5V Powered
USB Audio: Connect to a computer via a USB cable to use as an external sound card
U disk interface: support playback of MP3/WAV/APE/FLAC files in U disk, support FAT16/32 file format
LED indication: Bluetooth mode blue light is on, music mode blue light is blinking
TF card interface: support playback of MP3/WAV/APE/FLAC files in TF card, support FAT16/32 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 power amplifier: onboard 2 channel 3W power amplifier, realize stereo drive 3W speaker
3.7-5V power supply pad: realize external 3.7-5V power supply modification
1, mode control
When the decoder board does not have a USB flash drive or a TF card, the power-on default is Bluetooth mode; when the decoder board is plugged into a USB flash drive or a 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 the English "The bluetooth device is ready to pair", indicating to enter the Bluetooth mode and wait for pairing; the mobile phone Bluetooth search for "XY_BT" is the device name of the decoder board, click the connection, the decoder board prompts "The bluetooth device is connected successfuly , it means that the decoder board and the mobile phone are connected successfully, and the music can be played.
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: USB flash drive mode must not be inserted into the USB flash drive.