Emulate the tactile experience of a vinyl collection through your Sonos system, but with a back end run by Spotify.
There is a step-by-step tutorial on how to set this up from first principles on a Raspberry Pi here: https://www.hackster.io/mark-hank/sonos-spotify-vinyl-emulator-ssve-3be63d
Update: confirmed works with Sonos S2 released 8 June 2020
Update: this code relies on NFCpy which is incompatible with some newer card readers. You may wish to use Node Sonos NFC rather than this library. This is a Node implementation of this idea - the NFC cards should be compatible between both implementations.
Start playing a Spotify album or playlist through Sonos when you place a physical object on an NFC reader connected to a Raspberry Pi.
You can attach these tiny NFC tags to any physical object you want: I like polaroid-style prints of album covers and tape cassettes for playlists/mixtapes, but you do you; send me a photo if you're baller enough to print album art on 12-inch square aluminium plates and tag it to that.
All the actual back end work of this is done by the node-sonos-http-api which will need to be installed and set up in order to work.
This is not the first project to link NFC to Sonos / Spotify, but I couldn't find one that did both in the way I wanted. Unlike other projects of this type - which take a NFC tag id and cross reference that against a database on the Raspberry Pi to find the music URI - this project actually stores the album details directly on the NFC tag. This has a few advantages:
First, you can have a very large collection which will continue to exist independent of digital storage on the Raspberry Pi. Even if you manage to wipe the database on your Pi, your collection will live forever (just like real vinyl);
Second, these NFC tags aren't tied to the particular Raspberry Pi. This means that the tags are portable to other Raspberry Pis running the same scripts. So take your favourite jazz album from your city pad up to the country house to listen to in the study when it's Laphroig time, or take a rare deep cut you've stumbled across to a friend's house for a listening party. Other use cases are available for those who aren't millionaires.
It also means that other applications can read the tags - I am working on an implementation for Android phones which don't rely on Pi for the NFC, for instance.
It's all coded in Python. Kind of.
This currently accesses three any of three different services depending on the content of the NFC tag presented. The relevant service is determined by the start of the text passed by the NFC tag.
|spotify:||Plays a spotify album, track or playlist URI|
|tunein:||Plays a radio station identified by a tunein ID number|
|apple:||Plays a Apple music album, track of playlist URI|
|room:||Changes the room in which the script plays|
|command:||Executes a command in the current room; can accept any command as defined in node-sonos-http-api|
Examples of what can be passed:
spotify:track:4LI1ykYGFCcXPWkrpcU7hn spotify:album:4hW2wvP51Myt7UIVTgSp4f spotify:user:spotify:playlist:32O0SSXDNWDrMievPkV0Im tunein/play/44491 command:playpause command:mute command:next command:volume/50 command:volume/+10 command:shuffle/on
I made a full tutorial, starting from absolute first principles, here: https://www.hackster.io/mark-hank/sonos-spotify-vinyl-emulator-ssve-3be63d
Since developing this code in early 2020 it's become apparent that a number of the newer ACR122U NFC readers (which is what I recommended for this project) are not compatible with NFCpy, which is the library that my Python code uses.
Even worse, there seems to be no way to know whether the ACR122U reader you are going to get will work or not... which is annoying.
Luckily ryanolf has created a new library which is compatible with the newer readers and is available here: https://github.com/ryanolf/node-sonos-nfc
This is set up to send anonymous usage stats for the purposes of debugging. All that is stored is an anonymised uuid generated by your Raspberry Pi (so not linked to you at all), a log when the app starts, the NFC payload received and how the app interprets this. You can turn this off by changing the relevant setting in usersettings.py to anything except "yes"