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Introduction to AC6951C Bluetooth Transmitter and Receiver Module

I. Product Picture

 

 

II. Peripheral Function Description

The following is the functional description corresponding to each program. The serial number corresponds one - to - one with the program in the picture:

1

Charging Input TYPE_C Interface: The charging voltage is 5.0V.

2

Audio Interface: In the Bluetooth receiving mode, it is used for audio output. In the Bluetooth transmitting mode, it is used for audio input.

3

Optical Fiber Input: It is effective in Bluetooth transmitting mode.

4

Coaxial Input: It is effective in Bluetooth transmitting mode.

5

RCA Audio Interface: In the Bluetooth receiving mode, it is used for audio output. In the Bluetooth transmitting mode, it is used for audio input.

6

Bluetooth Receiving and Transmitting Switch: Operate according to the silk - screen direction on the board.

7

Volume + and Next Track Button: Short - press for the next track, long - press for volume increase.

8

Power On/Mode Button: Long - press to turn on/off, short - press for the next track.

9

Volume - and Previous Track Button: Short - press for the previous track, long - press for volume decrease.

10

Call Microphone.

11

Battery Socket: 2PIN*2.0 pitch interface.

12

USB Flash Drive Playback Interface.

13

TF Card Insertion Playback Interface.

14

Nixie Tube Display Screen.

 

III. Operation Instructions

Receiving Mode (RX)

This mode can upgrade old - style home speakers and car speakers to Bluetooth speakers. In the receiving mode, there are five audio source input methods: Bluetooth, USB flash drive, TF card, optical fiber, and coaxial. Double - click the M button to switch modes. The specific usage methods are as follows:

 

Bluetooth Mode

1. Connect the product and the speaker with a 3.5 - 3.5 audio cable or a 3.5 - RCA audio cable, and switch the side switch of the product to the RX position.

2. Long - press the M button to turn on the device. It will enter the Bluetooth mode by default. The RX indicator light on the screen starts to flash. Turn on the Bluetooth of your mobile phone, find the pairing name "RT06" for pairing. After successful pairing, the RX indicator light on the display stops flashing.

 

USB Flash Drive Mode/TF Card Mode

1. Long - press the M button to turn on the device. Insert a USB flash drive or a TF card, and the product will automatically enter the USB flash drive or TF card mode. You can also double - click the M button to switch.

2. Turn on the Bluetooth of your mobile phone, find the pairing name "RT06" for pairing. After successful pairing, the RX indicator light on the display stops flashing.

 

Optical Fiber Mode/Coaxial Mode

Connect one end of the optical fiber/coaxial cable to the audio source device interface, and the other end to the optical fiber/coaxial interface of the product. Then, transmit the audio to the speaker through a 3.5 - 3.5 or 3.5 - RCA cable.

 

Transmitting Mode (TX)

This mode can upgrade non - Bluetooth devices such as TVs, computers, and power amplifiers to Bluetooth devices, and transmit audio to Bluetooth speakers or Bluetooth headphones via Bluetooth. In the transmitting mode, there are five audio source input methods: LINE, USB flash drive, TF card, optical fiber, and coaxial. Double - click the M button to switch modes. The specific usage methods are as follows:

 

LINE Mode

1. Connect one end of a 3.5 - 3.5 audio cable or a 3.5 - RCA audio cable to the TV or other device, and the other end to the product interface.

2. Switch the side switch to TX, long - press the M button to turn on the device. After turning on, it will be in the LINE mode by default and automatically search for surrounding Bluetooth receiver devices. The TX indicator light on the screen flashes.

3. Turn on the Bluetooth headphones or Bluetooth speaker and enter the pairing mode. At this time, the product will automatically pair with the Bluetooth headphones/Bluetooth speaker. After successful pairing, the TX indicator light stops flashing, and you can start enjoying wireless audio.

 

USB Flash Drive/TF Card Mode

1. Switch the side switch to TX, long - press the M button to turn on the device. After turning on, it will be in the LINE mode by default and automatically search for surrounding Bluetooth receiver devices. The TX indicator light on the screen will flash.

2. Turn on the Bluetooth headphones or Bluetooth speaker and enter the pairing mode. At this time, the product will automatically pair with the Bluetooth headphones/Bluetooth speaker. After successful pairing, the TX indicator light stops flashing.

3. Insert a USB flash drive or a TF card at this time, and it will automatically enter the USB flash drive or TF card mode. The USB or TF indicator light on the screen turns on.

Note: If you insert a USB flash drive or a TF card before successful pairing, you need to double - click the M button to switch to the USB flash drive or TF card mode after successful pairing.

 

Optical Fiber/Coaxial Mode

1. Connect one end of the optical fiber/coaxial audio cable to the TV and other devices, and the other end to the product interface.

2. Switch the side switch to TX, long - press the M button to turn on the device. After turning on, it will be in the LINE mode by default and automatically search for surrounding Bluetooth receiver devices. The TX indicator light on the screen will flash.

3. Turn on the Bluetooth headphones or Bluetooth speaker and enter the pairing mode. At this time, the product will automatically pair with the Bluetooth headphones/Bluetooth speaker. After successful pairing, the TX indicator light stops flashing. After successful pairing, double - click the M button to switch to the optical fiber or coaxial mode.

Note: After successful pairing, you can switch modes only by double - clicking the M button.

 

IV. Module Parameters

1. Operating Voltage: 3.7 to 5.0V

2. Bluetooth Version: V5.1 + BR + EDR

3. Frequency Band: 2.4GHZ - 2.485GHZ

4. Transmission Distance: 10m/33ft (unobstructed)

5. Audio Decoder: Supports MP2, MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, AIFC

6. Sampling Rates: 8KHz/11.025KHz/16KHz/22.05KHz/24KHz/32KHz/44.1KHz/48KHz

7. Two - channel 16 - bit DAC, SNR >= 95dB

8. Audio Encoder: Supports MP2, MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, AIFC

9. Three - channel 16 - bit ADC, SNR >= 90dB

10 Transmitting Audio Sampling Rate: 44.1K

11. Frequency Response: 20Hz - 20kHz

12. Operating Temperature: -20 to +70 ℃

Tags: #AC6951C #BluetoothModule #BluetoothTransmitter #BluetoothReceiver #AudioModule

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