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3pcs M28 Wireless Bluetooth MP3 Audio Receiver Board BLT 4.2 mp3 Lossless decoder Bluetooth 4.2 Audio Receiver Board Wireless Stereo Sound Module
- Power supply: You can directly use the MICRO USB Android cable 5V for direct power supply, or you can also connect 5V power supply or 3.7V lithium battery (as shown below). Note that the 5V and 3.7V power supply interfaces are different. The 5V voltage is connected to 5V and GND, and the 3.7V lithium battery is connected to VBAT and GND.
- Audio output: The earphone can be directly connected to the 3.5mm audio interface, or it can be wired for the audio input of the power amplifier board (the interface L/R/AGND can be directly wired as shown).
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Overview
Specs
Reviews
Function Description:
Bluetooth V 4.2 version, support Bluetooth automatic connection technology, support WAV/WMA/FLAC/APE/MP3 lossless decoding, stereo dual channel output.
After the module is powered on, the mobile phone searches for the Bluetooth name M18/M28/M38, and can play music after connecting Bluetooth.
Module blue indicator light:
When the Bluetooth is not connected, the indicator light flashes quickly;
When the Bluetooth connection is on, the indicator light is always on;
When the Bluetooth is playing, the indicator light flashes slowly.
M28(HW-407):
PIN-----------Description
5V------------5V
GND---------GND
VBAT--------Lithium battery 3.7V power supply 3.7V - 4.2V
L---------------Left channel
R--------------Right channel
AGND-------Audio GND
--------------------------------------------------------------------------------------------------------------------------
Package Includes:
3 * M28(HW-407) Wireless Bluetooth MP3 Audio Receiver Board
Bluetooth V 4.2 version, support Bluetooth automatic connection technology, support WAV/WMA/FLAC/APE/MP3 lossless decoding, stereo dual channel output.
After the module is powered on, the mobile phone searches for the Bluetooth name M18/M28/M38, and can play music after connecting Bluetooth.
Module blue indicator light:
When the Bluetooth is not connected, the indicator light flashes quickly;
When the Bluetooth connection is on, the indicator light is always on;
When the Bluetooth is playing, the indicator light flashes slowly.
M28(HW-407):
PIN-----------Description
5V------------5V
GND---------GND
VBAT--------Lithium battery 3.7V power supply 3.7V - 4.2V
L---------------Left channel
R--------------Right channel
AGND-------Audio GND
--------------------------------------------------------------------------------------------------------------------------
Package Includes:
3 * M28(HW-407) Wireless Bluetooth MP3 Audio Receiver Board
Warranty & Returns
Warranty, Returns, And Additional Information
Return Policies*
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by Coretix Return Policy
- *Subject to applicable law
Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.
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