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Upgrade your DSP amplifier to support one-button pairing


Our existing Bluetooth amplifier boards support TWS or Party mode wireless pairing to link 2 or more boards together. However, the pairing process need to press 3 buttons many times. This is not user-friendly for many new users. We have recently upgraded the AudioB I2S module to version 4 which support one button pairing function. Users can upgrade the extire amplifier board by simply replacing the original AudioB I2S module with the latest v4 version.

Hardware preparation:

  1. Replace the old AudioB i2s module with AudioB i2s V4
  2. Connect RGB push button to the AudioB I2S v4

How to use:

TWS firmware :

Single module：

  1. Power on the module and wait for 5 seconds. The module will enter pairing mode, and the red and green LEDs will flash alternately.

  2. Turn on your phone's Bluetooth, find a Bluetooth device named "AudioB I2S", and connect to it. Once connected, the red LED stays solid.

  3. You can play music now

TWS connection:

Master module:

  1. Pause the music, press and hold button S1 for about 2 seconds, you will hear two beep sounds, and the green LED will start flashing.

Slave module:

  1. Power on the other module (Slave) and wait for 5 second, the red and green LEDs will flash alternately.
  2. Press and hold button S1 for about 2 seconds, you will hear two beep sounds.
  3. After a moment, when the master and slave are successfully paired, the green LEDs on both the master and slave will stay solid.
  4. Master module and slave module can play music now.

 

Party mode firmware:

Single module

  1. Double click S1, module into pairing mode. (Voice: Pairing, blue LED flash 2 times per cycle.)
  2. Now, your smartphone will be able to find a new Bluetooth device which name is "AudioB I2S", connect it. (Voice: Pairing successful, blue LED flash 1 time per cycle.)
  3. You can play music now.

 

Party connection (multi modules can connected together)

  • transmitter module
  1. Power up module, blue LED flash 3 times per cycle.
  2. Double click S1, module into pairing mode. (Voice: Pairing, blue LED flash 2 times per cycle.)
  3. Now, your smartphone will be able to find a new Bluetooth device which name is "AudioB I2S", connect it. (Voice: Pairing successful, blue LED flash 1 time per cycle.)
  4. You can play music now. If you only use one module, you don't need do the following steps.
  5. Single click S1, module will switch between transmitter mode and receiver module. Stop click when you hear voice: broadcast mode, it means the module is set to transmitter mode, Red LED is ON.

 

  • receiver module
  1. Power up another module, blue LED flash 3 times per cycle.
  2. Single click S1, module will switch between transmitter mode and receiver module. Stop click when you hear voice: broadcast audio enabled, it means the module is set to receiver mode. Green LED is ON
  3. Press and hold S1 button about 1 second on transmitter module, press and hold S1 button about 1 second on receiver module, the transmitter module will auto searching (30 seconds) receiver module. Both transmitter and receiver module will be connected. (Voice: pairing successful)
  4. The receiver module will have music out now.
  5. If a new module want to join as receiver, repeat step1~step3 on the new module.
  6. If a receiver wants to quit, click S1 button on that module to set it into transmitter mode.

 

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