Raspberry Pi Audio Receiver
A simple, light weight audio receiver with Bluetooth (A2DP), AirPlay, Spotify Connect and UPnP.
Features
Devices like phones, tablets and computers can play audio via this receiver.
Requirements
- Raspberry Pi with Bluetooth support (tested wth Raspberry Pi 3 and Zero W) or USB dongle
- Raspbian Stretch Lite (tested with November 2018 version)
- USB or I2S Audio adapter (tested with Adafruit USB Audio Adapter, pHAT DAC, and HifiBerry DAC+)
Installation
Basic setup
Sets hostname to airpi, the visible device name to AirPi and updates the Raspbian packages.
sudo apt update -y
sudo apt upgrade -y
sudo apt install -y --no-install-recommends git
git clone https://github.com/nicokaiser/rpi-audio-receiver.git
cd rpi-audio-receiver
sudo raspi-config nonint do_hostname airpi
sudo hostnamectl set-hostname --pretty "AirPi"
Bluetooth
Sets up Bluetooth, adds a simple agent that accepts every connection, and enables audio playback through BlueALSA. A udev script is installed that disables discoverability while connected.
sudo ./install-bluetooth.sh
AirPlay
Installs Shairport Sync AirPlay Audio Receiver.
sudo ./install-shairport.sh
Spotify Connect
Installs Spotifyd, an open source Spotify client).
sudo ./install-spotify.sh
UPnP
Installs gmrender-resurrect UPnP Renderer.
sudo ./install-upnp.sh
Read-only mode
To avoid SD card corruption when powering off, you can boot Raspbian in read-only mode. This is described by Adafruit in this tutorial and cannot be undone.
sudo ./enable-read-only.sh
Limitations
- Only one Bluetooth device can be connected at a time, otherwise interruptions may occur.
- The device is always open, new clients can connect at any time without authentication.
- To permanently save paired devices, the Raspberry has to be switched to read-write mode (
mount -o remount,rw /) until all devices have been paired once. - You might want to use a Bluetooth USB dongle or have the script disable Wi-Fi while connected (see
bluetooth-udev.sh), as the BCM43438 (Raspberry Pi 3, Zero W) has severe problems with both switched on, see raspberrypi/linux/#1402.