# A2DP Switcher

This project allows you to connect via a Bluetooth Classic A2DP connection to
your speakers. It does this by using a multiplexer which switches the output
from a DAC automatically when media is playing on the Bluetooth, and back to
whatever device you would normally have your speakers connected to, for
example, a computer.

## Installation

### Prerequisites

- Some sort of DAC, such as a PCM5102A module;
- An ESP32;
- Some Arduino IDE knowledge.
- Optionally, if you do not want a wiring mess, a PCB which you can find here.

### Configuration

If you want to change pin configurations or bluetooth settings, edit the
"config.h" file.

### Building

Go to Tools -> Boards -> Boards Manager. Find the `esp32` package by Espressif
Systems and install that.

Get the `ESP32-A2DP` library at https://github.com/pschatzmann/ESP32-A2DP.
Go to Code -> Download ZIP. In Arduino IDE, go to Sketch -> Load library -> Add
ZIP library and select the downloaded ZIP.

### Flashing

Go to Tools and select your ESP32 board, and on Port, select the port your board
is on. Hit Ctrl-U or press the Upload button.

## License

This project is licensed under the GNU GPLv3 license. For more information go to
[LICENSE.txt](./LICENSE.txt) at the root of the repository.