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I want to take audio signal through mic connected to Arduino and then transfer it to PC using BT module. I want to do it with BT (HC05) and Arduino Mega. I need audio packages at 44 KHz and 24-32 bits per sample.

Can I use AudioInI2S library to receive audio samples? Does HC05 support this type of communication?

I want to save and analyze the audio samples later on. I have worked on Arduino before but I am totally new to audio streaming and I am not sure where to begin from. Any guidance would be appreciated.

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In short: No and no.


Can I use AudioInI2S library to receive audio samples?

No. The library is not for the Mega:

This library provides simple way to play and analyze audio data using Arduino on SAMD21 based boards (i.e Arduino or Genuino Zero, MKRZero or MKR1000 Board) using the I2S bus.


Does HC05 support this type of communication?

No. The HC05 is a serial module. It works at baud rates that are far to low to transfer the data in a timely fashion, and can't send data in a form the PC sees as audio (so you'd need to write your own translation software to convert serial data into an audio file).


Any guidance would be appreciated.

Just buy a cheap bluetooth headset.

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  • Thank you for your reply. Can you suggest any other Bluetooth module that can support my frequency range? – Mariam Oct 2 '19 at 18:50
  • Bluetooth headset is not an option as it is a part of some project that I am working on. – Mariam Oct 2 '19 at 18:56

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