1. Description:

KCX_BT002 is a audio module that integrates Bluetooth, audio and Bluetooth phone calls. It supports the market, all kinds of intelligent mobile phone player to play music, voice calls, telephone / hang up call / redial last call function.
You just need to put this codec into your product, and you can upgrade your regular wired audio products to wireless Bluetooth audio products.

2. Typical applications:

1>. Home speakers change Bluetooth speakers
2>. Sound box maintenance and upgrade
3>. Car player upgrade
4>. Computer speaker upgrade

3. Electrical characteristics:

4. Features and advantages:

1>. Exceptional durability and coexistence.
2>. Through a variety of technologies to ensure the stability of Bluetooth transmission.
3>. Intuitive LED instructions.
4>. Voice prompt.
5>. Convenient and easy to use.
6>. The wireless transmission distance is not less than 10 meters.

5. Instructions for connection and pairing operations:

After power to hear a voice prompt "Bluetooth mode", which means the module into the Bluetooth mode, and opening mobile phone Bluetooth switch. Then searching for nearby Bluetooth devices after a few seconds, you will see the equipment named "Bluetooth Audio" Bluetooth device, click on the link in the mobile phone side can connect Bluetooth mobile phone.
After the connection, the decode board broadcasts the voice prompt for "successful connection".
At this point, open the phone player to play music, the phone's music can be transmitted via Bluetooth wireless to the decoder board.

6. Connection operation step:

1>. Module power on
2>. Enter the phone system settings
3>. Turn on the Bluetooth switch
4>. Search for Bluetooth devices
5>. Connect Bluetooth
6>.After the mobile terminal is connected with the Bluetooth module, the mobile phone player is opened to play music, and the Bluetooth module can output the music of the mobile phone.

7. About incoming calls

When a mobile phone with a Bluetooth module has an incoming call, the module sends out a voice to broadcast the caller's call number. You can answer the call of the Bluetooth module short press P/P key, after the call, call audio signal from the Bluetooth module external electret microphone (to use the Bluetooth module calls the Bluetooth module to connect the electret microphone, otherwise they can not hear the sound). In addition, you can switch to any phone or Bluetooth module during the call process.

8. Selection and connection of peripheral devices:

1>. power mode selection and connection
The power input port +12V module, negative positive and negative GND are respectively connected with the power supply, voltage regulator chip 78M05 between 1 and 3 foot short circuit for 5V power supply mode, disconnect the power supply for the 12V mode (before electricity please check the power supply voltage and power at appropriate intervals), factory default for 12V mode.
2>. the connection of audio signals
The AUDIO OUT:3.5mm audio interface is used to output stereo audio signals, to connect external power amplifiers, or to directly connect headphones.

9. Status indicator light:

1>. The decoder board is equipped with status indicator (blue LED), which is used to display the various working conditions of the module.
2>. Pairing: LED flashes fast (bright, out of 250ms)
3>. MP3 play: LED slow flash (bright 500ms, destroy 500ms)
4>. Pause status: LED often light
5>. Bluetooth playback: LED flashes two times every 2S

Specification:

• Model: KCX_BT002

• Power Supply: 3.3-5.0V

• Working Current: 35mA

• Channel: Stereo

• bluetooth Version: 4.2

• Working Frequency: 2400-2485MHz

• Receiving Sensitivity: -85dBm

• Size: approx. 3.1 x 1.4cm/1.22" x 0.55"

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