# Audio

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Phantom power for mic

As a bonus here is the BM800 teardown

Electronics Audio
Link
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Evc_pt2257

Arduino Library for using PT2257 - Electronic Volume Controller IC (a.k.a Digital Potentiometer)

C++ library Arduino i2c Audio
Link
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Making a Professional Looking Remote Control for Your Arduino Project at Home

A step-by-step tutorial

Instructables Tutorial DIY Audio Infrared
Link
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Remote Volume Control for Old Stereo Amp

A step-by-step tutorial

Tutorial Electronics Arduino Audio
Link
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Add Bluetooth to Your Old Car StereoAdd Bluetooth to Your Old Car Stereo

A step-by-step tutorial

Instructables Tutorial Bluetooth Audio
Link