blogmywiki / piOLEDradio

piOLEDradio

Recycling an ancient Raspberry Pi Model B Rev 2 to make a simple internet radio with OLED display and 4 push buttons to change channel and volume. Tested on headless Raspbian Buster Lite, and an Edimax USB wifi dongle.

Re-requistes

There are many, including but probably not limited to:

• generic I2C OLED display connected to I2C pins on the Pi
• push buttons connected to on one side to pins 17, 27, 22 and 10 and on the other to GND
• I2C enabling on the Pi using raspi-config
• install MPC / MPD and add a bunch of online radio stations with mpc add http://icecast.radiofrance.fr/fip-midfi.mp3 etc
• install pip3
• install this OLED Python library: https://github.com/rm-hull/luma.oled
• install guizero Python library
• move the ChiKareGo.ttf font to the same directory as radio.py, in this case specified as /home/pi/
• Use systemd to start the script after the Pi has network:

sudo nano /lib/systemd/system/myscript.service

add these lines:

[Unit]

Description=OLED display radio

After=network-online.target

[Service]

Type=idle

ExecStart=/usr/bin/python3 /home/pi/radio.py

[Install]

WantedBy=network-online.target

Save and exit with Ctrl+x,Y and ENTER.

Change the permissions on the configuration file to 644:

sudo chmod 644 /lib/systemd/system/myscript.service

Now tell systemd to start the process on boot:

sudo systemctl daemon-reload

sudo systemctl enable myscript.service

Reboot the Pi and it should start up.

To do

• Add volume progress bar
• Maybe add graceful shut down
• Perhaps add display IP address option
• Improve clock placement so wider dates don't cause it to move around