Cheap - Bluetooth Module MP3 Decoder Board DIY Car Speaker Power Amplifier Refit Bluetooth 4.1 Circuit Board Audio Receiver Wonderfull
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DIY Supplies:
Electrical
Parameter characteristics
| Power Supply | 3.7-5V |
| SNR | 90dB |
| THD+N | -70dB |
| Crosstalk | -86dB |
| DNR big | 91dB |
| Support Profile | A2DP/AVCTP/AVDTP/AVRCP/HFP |
| LOS | >15m |
Interface details
| Power interface | currencyMicro USB 5Vpower supply |
| 3.7-5VPower supply welding plate | Externally3.7-5VPower supply modification |
| UDisk interface | Support playbackUIntradayMP3/WAV/APE/FLACDocument supportFAT16/32file format |
| TFCard interface | Support playbackTFIn the cardMP3/WAV/APE/FLACDocument supportFAT16/32file format |
| LEDInstructions | Bluetooth mode blue light, music mode blue light flashing. |
| 3.5mmStereo Out | standard3.5mmInterface, output stereo sound source, can be inserted into earphone, connect power amplifier and other equipment. |
Key function definition
| Key | function |
| MODE | “ short press “TFCard,UDisk and Bluetooth mode switching |
| P/P | “ short press “ playback and pause handoff. |
| NEXT/V+ | “ short press “ next song, ” long press “ volume increase. |
| PREV/V- | “ short press “ last song, ” long press “ volume reduction. |
| RPT | “ short press “ single./Cyclic switching |
size
Operation description
1.Pattern control
When the decoder board is not insertedUDisk orTFCard, power on the default is Bluetooth mode; when the decoder board is inserted.UDisk orTFCard, power on default is music mode; pass through.MODEButton to switch mode.
2.Musical pattern
insertUDisk orTFThe card can play the stored audio files.
3.Bluetooth mode
Switch mode broadcast English“The bluetooth device is ready to pair“,Describes &rdquo entering Bluetooth mode and waiting for pairing; mobile Bluetooth search.XY_BT“ it is the device name of the decoder board, click on the connection, and the decoder board prompts &rdquo.The bluetooth device is connected successfully“,It shows that the decoding board is connected successfully with the mobile phone and can play music. The following diagram
Matters needing attention
1.IfUDisk play, recommended useUSB 5VPower supply (not recommended)3.7VLithium battery powered, because earlyUDistable support3.7VVoltage.
2.UDisk orTFCard, decoding board support onlyFAT16/FAT32File system does not supportNTFSSystem.
'
Unit Type:
piece
Package Weight:
0.5kg (1.10lb.)
Package Size:
10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
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