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This program randomly plays jingles of the Fritz radio station

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Fritz Jingle Maschine

This program randomly plays the famous jingles of the Fritz radio station aired in Berlin and Brandenburg, Germany. It is meant to be run on a Raspberry Pi (or similar mini-computer) that has a button attached to it's GPIOs. A button press triggers the playback of a randomly chosen jingle.

Structure

The project is splitted into three parts:

  • fritz-jingle-maschine - the program that randomly plays jingles
  • fritz-jingle-downloader - a program that downloads or updates all the jingles from the fritz website
  • fritz-jingle-db - a shared library for handling metadata about the jingles in a JSON file

The parts of the project are split into packages because the compilation on an old Raspberry Pi takes a looooooooong time (one of the reasons for this project was giving an old Raspberry Pi 1 a new purpose).

Because of that, the code for the maschine-part is kept to a minimum (I wasn't able to build a working container for compilation with cross).

Hardware

  • Raspberry Pi
  • Push-button for triggering the playback. The pin is configured as pull-down.
  • 3.3V compatible LED to indicate readiness (optional)

Build

For building the parts, go to the root of this repo and execute the corresponding commands.

fritz-jingle-downloader

cargo build --release --package fritz-jingle-downloader

fritz-jingle-maschine

This is meant to be executed on the target device (the Raspberry Pi). For the sound to play back smoothly, the build must be a --release target!

cargo build --release --package fritz-jingle-maschine

Run

You will find the executables in: <PROJECT_ROOT>/target/release.

fritz-jingle-downloader

It is recommended to download the jingles to your computer and copy them to the Pi. The downloader creates the following file structure at the parameter given to PATH (in this case, the target folder is jingles):

jingles/
├── db.json
└── files
    ├── 1 Harz 4 Kinder.mp3
    ├── 25 Jahre Fritz (Mix-Up).mp3
    ├── 3 Megahits am Stück.mp3
    ├── 5 Dinge.mp3
    ├── 5 Kilo Freude.mp3
    ├── 6 Monate.mp3
    ├── 666.mp3
    ├── 90 Jahre S-Bahn.mp3
    ├── Abfolge.mp3
    ...

Command line options

fritz-jingle-downloader 0.2.2
Beh <[email protected]>


USAGE:
    fritz-jingle-downloader --jingles-path <PATH>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -j, --jingles-path <PATH>    Downloads or updates all the jingles from Fritz to a given path. If
                                 a db.json is found in the path, missing jingles are downloaded.

fritz-jingle-maschine

The maschine takes the path created by the downloader. It reads the db.json created by the downloader.

Command line options

fritz-jingle-maschine 0.2.1
Beh <[email protected]>


USAGE:
    fritz-jingle-maschine [OPTIONS] --files-path <FILES-PATH> --button <BUTTON-PIN>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -b, --button <BUTTON-PIN>        Specifies the Raspberry Pi GPIO pin for the trigger button. BCM
                                     numbering is used.
    -f, --files-path <FILES-PATH>    Path to the Jingles files containing db.json and a folder
                                     called files containing the MP3s.
    -l, --led <LED-PIN>              Specifies the Raspberry Pi GPIO pin for the (optional) LED. BCM
                                     numbering is used.

Autostart

On a Pi with RaspberryOS you can use the systemd service file in this repo. Adjust the parameters to your needs.

Disclaimer

I am not, in any kind, related to Fritz or rbb. This is meant as a fun project to emphasize the greatness of these jingles. Since Fritz claims on it's jingles website, that the jingles are "Zum Anhören, Runterladen und Weiterverschicken." (engl. "for listening, downloading and redistributing"), a project like this one here should be no problem. The website linkfang.org claims, that these jingles ar published under a CC-License.

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This program randomly plays jingles of the Fritz radio station

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