Introducció
This manual provides detailed instructions for the Walfront Bluetooth Audio Receiver Board 4.1. This versatile module integrates Bluetooth audio reception, USB decoding playback, and MicroSD card decoding playback, making it suitable for various audio applications such as car audio upgrades, home stereo systems, and DIY projects. Please read this manual thoroughly before use to ensure proper installation and operation.
Característiques del producte
- Múltiples modes d'entrada d'àudio: Supports Bluetooth 4.1 reception, USB decoding playback, and MicroSD (T-F) card decoding playback.
- Compatibilitat de format ampli: Plays MP3, WMA, WAV, FLAC, and APE (FAST encoding format) audio files.
- Efectes de so: Built-in equalizer with Class, Jazz, Rock, Bass, and Normal sound modes (effective in USB/MicroSD playback).
- Controls fàcils d'utilitzar: On-board buttons for mode switching, track navigation, volume control, and EQ settings.
- Disseny compacte: Small form factor (50mm x 40mm) for easy integration into various setups.
- Font d'alimentació: Operates on DC 5V.
Contingut del paquet
- 1 x Walfront Bluetooth Audio Receiver Board 4.1
- Note: Additional cables or accessories are not included unless specified.
Producte acabatview
Familiarize yourself with the various components and interfaces of the audio receiver board.

Imatge 1: De dalt a baix view of the Walfront Bluetooth Audio Receiver Board 4.1, showing the MicroUSB power input, 3.5mm audio output, control buttons, MicroSD card slot, and USB-A port.

Imatge 2: De dalt a baix view of the board with key dimensions indicated: 50mm length and 40mm width.

Imatge 3: A baix view of the Walfront Bluetooth Audio Receiver Board, showing solder points for GND and 5V power input.

Imatge 4: Detailed close-up of the control buttons (MODE, PLAY, NEXT, BACK, EQ), 3.5mm audio jack, and USB-A port.
Components clau:
- Port MicroUSB: For 5V DC power input.
- Conector d'àudio de 3.5 mm: Sortida d'àudio estèreo.
- Ranura per a targeta MicroSD: Per reproduir àudio files des d'una targeta MicroSD.
- Port USB-A: Per reproduir àudio files d'una unitat flash USB.
- Botons de control:
- Mode: Switches between Bluetooth, USB, and MicroSD input modes.
- REPRODUCCIÓ/PAUSA: Toggles playback.
- SEGÜENT: Short press for next track; long press to increase volume.
- ESQUENA: Short press for previous track; long press to decrease volume.
- EQ: Cycles through sound equalizer presets (Class, Jazz, Rock, Bass, Normal).
- M_ANT: Antena Bluetooth.
- MUT: Mute output.
- MIC: Microphone input (if applicable, though not explicitly stated for this model).
- 5V/GND Solder Points: Alternative power input.
Instruccions de configuració
- Connexió d'alimentació:
Connect a 5V DC power supply to the MicroUSB port on the board. Alternatively, you can solder a 5V DC power source to the designated 5V and GND solder points on the board. Ensure correct polarity to prevent damage.
- Connexió de sortida d'àudio:
Connect the 3.5mm audio output jack to your amplifier, active speakers, or headphones using a standard 3.5mm audio cable.
- Input Source Preparation:
- For MicroSD Card Playback: Insert a MicroSD card containing supported audio files (MP3, WMA, WAV, FLAC, APE) into the MicroSD card slot.
- For USB Playback: Insert a USB flash drive containing supported audio files al port USB-A.
Important: Always ensure the power supply is stable and within the specified 5V DC range. Incorrect voltagPots danyar el mòdul.
Instruccions de funcionament
1. Encendre/apagar
The module powers on automatically when connected to a 5V DC power source. There is no dedicated power button.
2. Selecció de mode
Premeu el botó MODE button to cycle through the available input modes:
- Bluetooth Reception Mode
- USB Decoding Playback Mode
- MicroSD Card Decoding Playback Mode
3. Bluetooth Reception Mode
- Switch the module to Bluetooth mode using the MODE botó.
- The module will enter pairing mode, indicated by an audible prompt or LED indicator (if present).
- Al dispositiu compatible amb Bluetooth (per exemple, un telèfon intel·ligent o una tauleta), cerqueu els dispositius Bluetooth disponibles.
- Select the device named "Bluetooth Audio" or similar (specific name may vary) to pair.
- Once paired, you can play audio from your device, and it will be output through the module.
4. USB/MicroSD Card Playback Mode
- Insert a USB flash drive or MicroSD card containing supported audio files a la ranura corresponent.
- Switch the module to USB or MicroSD mode using the MODE button. The module will automatically begin playing audio files.
- Control de reproducció:
- Premsa curta REPRODUCCIÓ/PAUSA per aturar o reprendre la reproducció.
- Premsa curta SEGÜENT per a la següent pista.
- Premsa curta TORNAR for the previous track.
5. Control de volum
- Premsa llarga SEGÜENT per augmentar el volum.
- Premsa llarga TORNAR per disminuir el volum.
6. Sound Effects (EQ)
Premeu el botó EQ button to cycle through different sound equalizer presets. These effects are only active during USB or MicroSD card playback.
- Classe
- Jazz
- Roca
- Baix
- Normal
Especificacions
| Característica | Detall |
|---|---|
| Font d'alimentació | DC 5V |
| Formats d'àudio compatibles | MP3, WMA, WAV, FLAC, APE (FAST encoding format) |
| Mode de sortida d'àudio | Surround (4.1 channel configuration) |
| Tecnologia de connectivitat | Bluetooth, Sense fil |
| Tipus de controlador | Touch (on-board buttons) |
| Característiques especials | Bluetooth Receiver, USB Decode Playback, MicroSD Card Decode Playback |
| Dispositius compatibles | altaveus, Amplifiers, Headphones |
| Dimensions (L x A) | 50mm x 40mm (1.97"D x 1.57"W) |
| Pes | 11g (0.024lb / 0.352 ounces) |
Resolució de problemes
| Problema | Possible causa/solució |
|---|---|
| No power / Module not turning on. |
|
| Sense sortida d'àudio. |
|
| No es pot emparellar per Bluetooth. |
|
| La reproducció per USB/MicroSD no funciona. |
|
Manteniment
- Keep the module dry and away from moisture.
- Avoid exposing the module to extreme temperatures.
- Clean the surface with a soft, dry cloth. Do not use harsh chemicals or solvents.
- Handle the board carefully to avoid damaging components or solder joints.
Informació de seguretat
- This product is an electronic component and should be handled with care.
- Ensure proper ventilation when operating, especially if enclosed.
- Do not attempt to disassemble or modify the module beyond the intended connections. This may void any potential warranty and cause damage.
- Mantenir fora de l'abast dels nens.
- Elimineu els residus electrònics de manera responsable d'acord amb la normativa local.
Garantia i Suport
Per obtenir informació sobre la garantia o assistència tècnica, consulteu el distribuïdor o el representant oficial del fabricant. weblloc web. Conserveu el rebut de compra per a qualsevol reclamació de garantia.
Fabricant: Walfront
