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RadioBox

This stuff turns your Raspberry Pi into internet-radio box. It wraps MPD and provides Web-UI for controlling it's playback and volume.

Since commit #28 RadioBox also uses 8 GPIO pins to control playback and indicate current player state. The pins are:

  • 3 Input pins (for button switches)
  • 2 Output pins for LEDs
  • 1 Output pin for smooth LED blinking
  • +3.3V
  • Ground

The schematic.png shows how it is supposed to be implemented. schematic.png

Input and output pins are to be specified in config.json file.

Building

Checkout from Github repository to your PC/Mac and run

npm install
npm run prod

By default, output directory is ./target. You can change it in webpackfile.js

Installing

I mean that Nodejs and MPD have been installed and configured already.

First, copy files from output directory anywhere to your Raspberry Pi. Then install needed Nodejs modules

npm install http express socket.io mpc-js [rpi-gpio]

Configuring

The config.json provides all required settings as a JSON object. The stations field is array of [title, url] pairs. The pins field contains pin numbers (not names!) used in this project. The timeouts field describes, how fast LEDs will blink and how button long press will be handled. These two fields can be missed, empty of partially filled (in case if you do not need full functionality).

Running

sudo nodejs index.js

or if you require neither LEDs nor buttons

GPIO=0 sudo nodejs index.js

Or create service using systemctl or init.d.

Http- and WebSocket- servers will run at port 80 (so you need sudo). Now browse

http://<your_raspberry_ip>/

or

http://<your_raspberry_hostname>/

and enjoy your favorite stations!