Build an AirPlay Server From your Raspberry Pi Zero W

This summer, I wanted to buy a new AirPlay receiver for my back deck. For some reason, you can’t buy a simple device anymore, so I decided to build my own. Here’s how I did it…

Overview

We’re going to use a Raspberry Pi Zero W, and shairport-sync, to turn it into an AirPlay receiver.

Along the way, I’ll walk through how to install the OS, enable SSH and wifi, set a custom hostname, and change the default password..

Once we’re done, the Raspberry pi will appear as an option in the iOS AirPlay list, just like any “official” AirPlay device.

Step 1: Hardware

The Raspberry Pi Zero W is the smallest, cheapest wifi enabled member of the Raspi family. Reviews of the Zero W mentioned it had poor sound quality, so I decided to add on a Digital audio converter (DAC). This meant I’d need to do some soldering, but the finished result has worked out great.

The Parts:

This is what I purchased, feel free to improvise.

You’ll also need a computer with an SD Card slot to setup the OS.

The Assembly:

Using the header pins, solder the DAC to the Pi, per these instructions.

The end result should look similar to this:

Step 2: Install Operating System

Nothing fancy here, we’re going to install a headless version of Raspbian (the standard flavor of linux for Raspberry Pi)

On your computer (not on the Pi), insert the SD card.

Install OS with these steps:

Visit raspberrypi.org/downloads/raspbian
Download the “Lite” version because we will be running headless
While the image downloads, download and install Etcher, which we’ll use to easily copy the Raspian to the SD card
Launch Etcher, select the new linux image, and the SD card.
Press the “Flash!” button, and install the OS

Step 3: Enable SSH in Raspbian OS

Before booting up our new Raspberry Pi, we need to enable SSH. We do this by adding an empty file to the boot folder on the SD card.

Once Etcher finishes installing Raspian on your SD card, run the following: (this is from my mac, your directory path may vary)

touch /Volumes/boot/ssh

Step 4: Boot up your raspberry pi!

You can now insert the SD card in the Pi, and power it on.

To configure the Pi for your wireless network, we’re going to connect initially over the USB port labeled “data”. This allows us to SSH over USB using OTG networking network connection. More background here.

Steps:

Connect your computer to the Pi’s USB port labeled “data”
Boot up the Pi 🤘
Once the Pi has booted up, you should be able to SSH in by running

ssh pi@raspberry.local #default password is `raspberry`

NOTE from now on all commands will be run in the SSH session we just created above.

Step 5: Finish configuring your Raspian OS

Now that we can SSH into the running Raspberry Pi, lets update the default password/hostname, and enable wifi.

Change the default password

Change the default password for pi by running

passwd

Update the hostname

Your Airplay selection menu will display the hostname your Pi, so lets choose a memorable name. I’m naming mine airplay_pi

Update the hostname by running
```
 hostname
```

Update /etc/hosts

 - 127.0.1.1       raspberrypi
 + 127.0.1.1       airplay_pi

Update /etc/hostname
```
 - raspberrypi
 + airplay_pi
```

Setup wifi

We can manually set the router’s network name and password by adding it to /etc/wpa_supplicant/wpa_supplicant.conf

Run

 sudo vi /etc/wpa_supplicant/wpa_supplicant.conf

At the bottom of the file add the following:

 network={
     ssid="testing"
     psk="testingPassword"
 }

Shut it down with sudo poweroff and disconnect it from your laptop.

See more in the Raspberry Pi docs

NOTE: If you change your wifi password in the future, you’ll need to connect over USB and update this file accordingly

Ok, you can now connect to the Raspberry Pi on your wireless network by running ssh pi@airplay_pi.local 🤘🤘

Step 6: Power on, and connect to your home network

In this section we’ll use our new wifi connection to install the DAC drivers, and the airplay server.

Install the DAC software
```
 curl https://get.pimoroni.com/phatdac | bash
```
See more at the official setup guide.
Install airplay software
```
 sudo apt-get install shairport-sync
```

Step 7: Enjoy your new AirPlay device!

At this point we should be able to see our Pi as an option from the airplay menu on your iOS device.

Plug the Pi into some speakers, connect to airplay_pi and enjoy your new Airplay speakers! 🤘🤘🤘