Bluetooth 4.0 Audio receiver and amplifier module

The module has stereo output, simple built-in bluetooth antenna structure, 5V power supply voltage, and bluetooth connection function is added to active speaker.

The 7PIN output interface is 2.54 through holes, and the 7PIN output interface is +power supply, ground, left channel, right channel, mute, LED status indication, reserved port. Among them, the state port of the LED is connected with a 100-ohm resistance series LED indicating that it is connected to the ground. When Bluetooth is not connected, it is flash. When Bluetooth is connected successfully, it is slow flash.