An internet radio build using the following software/hardware components:
- Raspberry PI model B as the "brain"
- DietPi as the OS running on the pi
- mpd as the music player
- push button to interact with the player
The project will be accompanied by step-by-step build instructions, starting from the easy bare-bone internet radio to customizing both hardware and firmware.
Ultimate goal is to have it enclosed in a Thomson TG784n router as a radio case, as unfortunately I couldn't find a way to flash OpenWRT or DD-WRT to that router, although it would've made the whole thing probably a lot easier.
This version will only be controlled via SSH access, so in order to start/stop/change the music playing, you will have to log in to the Raspberry from a remote computer.
- prepare sd card with DietPi
- install DietPi with
- mpd for music playback
- mpc for mpd control
- alsamixer for volume control
- wiringpi library for GPIO input/output
- add an internet radio station using mpc add ....
- play using mpc play
To add some more control over what to play, let's make the radio controllable via a smartphone.
- install Node.js and git client using dietpi-software
- install MPD.FM according to the instructions
- edit /etc/systemd/system/MPD.FM.service to change node path in ExecStart from /usr/bin/node to /usr/local/bin/node
- systemctl restart MPD.FM to really start, now with the updated node path
- edit /home/srv-mpd-fm/MPD.FM/data/stations.json to your likings
- wire toggle button to pin 6 (GND) and pin 12 (GPIO18) of the rPi
- create controller python script to start/stop playback (copy thom-pi/basic/radio.py to /home/srv-mpd-fm/thompi/radio.py)
- create systemd service to autostart controller script (copy thom-pi/radio.service to /etc/systemd/system/radio.service)
- enable the radio service using systemctl enable radio.service to automatically start boot
- start the radio service using systemctl enable radio.service to start the radio contoller