# BC-127 Bluetooth Module Communication

**URL:** <https://forum.sierrawireless.com/t/bc-127-bluetooth-module-communication/20752>\
**Category:** Legacy HL Series\
**Created:** [June 26, 2020, 3:57am UTC](https://forum.sierrawireless.com/t/bc-127-bluetooth-module-communication/20752 "2020-06-26T03:57:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![amit.kumar](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@amit.kumar](https://forum.sierrawireless.com/u/amit.kumar)\
**Post date:** [June 26, 2020, 3:57am UTC](https://forum.sierrawireless.com/t/bc-127-bluetooth-module-communication/20752/1 "2020-06-26T03:57:25Z")

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Hello All

I am using text to Speech library and converting text into speech. For this, I have connected the speaker into my Arduino pin for the audio signal. But I want to transfer this audio by using the Bluetooth module.

Can I connect Arduino pin(where the speaker is connected) to Analog input pin(microphone input pin) of BC-127 Bluetooth Source module and transfer this data to another BC-127 Bluetooth sink module and taking audio output by connecting speaker on the audio output pin of BC-127 Bluetooth sink module

But I can’t find any BC-127 Breakout board Can you suggest to me any Bluetooth board (Source and sink Support) I can use for my project.