Description
A DIY speaker conversion board that supports wireless Bluetooth audio reception, USB and TF card playback, AUX input, EQ sound effects, etc., can upgrade your ordinary speakers or headphones into a high-end Bluetooth speaker device with wireless Bluetooth music reception.
Features:
- Compatible with Bluetooth 3.0/4.0 and 4.1 three-mode specifications.
- Support HSP/HFP. Support Bluetooth hands-free calling function, voice communication and call protection function.
- Support copper core with SPP protocol and for Android application.
- Support L2CAP/A2DP (AVCTP/AVDTP/AVRCP). The next and prev songs of the audio transmitter can be controlled by protocol.
- Support simple pairing, and automatic connection function. Support low power mode, sniff mode, stop mode.
- Cooperate with MP3 chip, it can support TF card/U disk music playback. Support WMA/MP3/WAV format decoding. Support EQ function: flat, rock, pop, classical, jazz and so on.
Specification:
Color: Red
Size: Approx. 6.2 * 5 cm/ 2.4 * 2.0 in
Weight: 13.4 g
Package list:
1 * Stereo Module
5 * Parts
Interface Description
Micro USB charging interface: 5V power supply (universal for Android interface and USB mobile phone charger).
3.5 Stereo Output Port: Designed for 16-64Ω impedance headphones, the bass is stronger and more powerful.
LOUT/ROUT Audio Output Socket: Designed for 3.5mm stereo audio input, AUX signal input (press MODE button to AUX mode).
INL/INR Audio Input Socket: Stereo, left and right channels, audio input port designed for audio impedance design of speakers when they are refitted in the machine.
M+/M- Microphone Interface: Connect the microphone part. When you are listening to the song, you can press the play button to answer the hands-free call.
ADKEY Button Expansion Port: a simple 2-wire button socket, connected by the provided line and resistance parameters for easy expansion.
GND/+5V Solder Joint: The solder joint of the 5V power input when the machine is modified.
USB Interface: Decode and play the WMA/MP3/WAV music format file on the U disk, and support up to 64G U disk.
TF Card Interface: Decode and play the WMA/MP3/WAV music format file on the TF storage, and support up to 32G capacity card.
Key Description
MODE function mode button: Short press the button to cycle through the”Bluetooth-AUX-USB-TF”function mode.
PLAY play pause button: short press play / pause / answer the call.
NEXT track plus / volume plus button: short press a song, long press the volume to increase.
PREV track plus / volume down button: short press the previous track, long press the volume to decrease.
EQ sound button: When playing USB and TF card music, short press has several sound effects such as flat, rock, pop, classical, jazz and so on.
