A simple MP3 Player and Internet Radio Player using a Raspberry Pi, 6 buttons, and 1 SSD1306 OLED
NOTE Use pi OS based on Bullseye, no oled driver for bookworm found yet.
All buttons are connected between gpios and gnd (1k resistors in series are usually recommended), OLED connected as shown.
compatible with https://shop.pimoroni.com/products/audio-dac-shim-line-out?variant=32343184965715
6 button switches, PREVIOUS,PLAY,NEXT,VOLUME DOWN, VOLUME UP,SLEEP but they have multi purposes as shown.
PREV = 20 # (38) PREVIOUS TRACK (whilst playing) / PREV ALBUM (whilst stopped) / PREV ARTIST (HOLD for 5 secs whilst stopped)
PLAY = 12 # (32) PLAY / STOP / HOLD for 5 seconds for RADIO
NEXT = 7 # (26) NEXT TRACK (whilst playing) / NEXT ALBUM (whilst stopped) / NEXT ARTIST (HOLD for 5 secs whilst stopped)
VOLDN = 16 # (36) Adjust volume DOWN whilst playing, set GAPLESS ON/OFF whilst stopped
VOLUP = 8 # (24) Adjust volume UP whilst playing, set RANDOM ON/OFF whilst stopped
SLEEP = 25 # (22) Set SLEEP time, HOLD for 20 seconds to SHUTDOWN, set ALBUM MODE whilst stopped.
Holding down NEXT and SLEEP will step through ARTISTS A-Z (whilst stopped)
At boot it will look for mp3 tracks in '/home/USER/Music/artist name/album_name/tracks', and/or on USB sticks, under /media/USER/usb_stick_name/artist name/album_name/tracks
To install copy Pi_OLED_MP3_player.py to /home/USERNAME
sudo apt-get install mplayer
sudo pip3 install mutagen
sudo apt install python3-alsaaudio
and then
To install SSD1306 driver...
git clone https://github.com/adafruit/Adafruit_Python_SSD1306.git
cd Adafruit_Python_SSD1306
sudo python setup.py install
Enable I2C on Pi. Pi Menu >> Preferences >> Raspberry Pi Configuration >> Interfaces >> I2C
reboot
setup audio output as required.
setup wifi connection if required.
to run at boot add /usr/bin/python3 /home/USERNAME/Pi_OLED_MP3_Player.py to /etc/xdg/lxsession/LXDE-pi/autostart