Playing local files with RFID

Pi MusicBox
1

Hello everyone,

I’m trying to build a headless Audio Player for my nephew.

I’m using Pi Musicbox as my base and
https://github.com/fsahli/music-cards and
https://github.com/9and3r/mopidy-ttsgpio

Everything is working fine by now. Control with the buttons and selecting spotify playlists with RFID. But i also want to get selecting local files with RFID working.

I used a Bashfile to create a .m3u Playlist

#!/bin/bash
rm -f /music/playlists/*.m3u
find "$1" -type d |
while read subdir
do
        for filename in "$subdir"/*.mp3
        do
          if [ -e "$filename" ]
          then
                echo $filename >> /music/playlists/"${subdir##*/}.m3u"
          fi
        done
done

Unbenannt
Now I want to play this playlist with music-cards. Instead of:
spotify:user:topsify:playlist:1uBI8icgYcUED3T1W1X6dB`
I used :
m3u:Karte1.m3u
This is the correct playlist file. The relevant Code file is here:
https:// github. com/fsahli/music-cards/blob/master/box.py
It is not working.

1 Like
2

Hi,

I did almost exactly what you did. This was some time a go, so I had to pull the card from the device to check the code to remember. However, what I used was “local:track:”… see https://docs.mopidy.com/en/latest/modules/local/

Also, I believe I used to just ls > file.m3u the directories when I made playlists. But I never tested this on anything else except “properly formed” folders, that is with only mp3’s that are named so that they list correctly and all in one folder.

3

Do you have an example? I don’t quite get it how I should code it. And the I don’t really understand what the docs are saying.

Unbenannt
Unbenannt.JPG661×1400 162 KB

4

Ok. So I went and took a look at the code that you are using from that github repo. The code is storing the card names and the associated tracks in a csv-file. So when you say:

Now I want to play this playlist with music-cards. Instead of:
spotify:user:topsify:playlist:1uBI8icgYcUED3T1W1X6dB`
I used :
m3u:Karte1.m3u
This is the correct playlist file. The relevant Code file is here:
https:// github. com/fsahli/music-cards/blob/master/box.py
It is not working.

What I mean is that you should instead use: local:track:Karte1.m3u. Can you try that?

5

Hi have you solved this issue? Can you please let me know how did you select local files by using RFID card?
Thanks
Marco

6

What issue?

You can select the files however you want. How I did it is that I had a small database in a csv-file. The card number is in one column, and the track name is in the other. You could use other ways to select, I suppose, but this is a really easy way to do it.

In addition I created a small utility to add new cards to the database by just reading them. But since a csv-file is just a text file, you can also manage the file manually if you want.