Home

pinetradio:
a RaspberryPi Zero Internetradio with Pirate Audio Line- or Amp-Out HAT and LCD-Display

A Lightning Talk for Berlin Hack and Tell edition #89: camping hacks, c-base Berlin 25.07.2023.

Why? Reinventing the wheel? No!

Interradio issues

• Mopidy: a server-client system, complicated & instable 👎
• Mplayer: a dead project; very instable 👎
• PyRadio: not bad; nice maintainer; adding further features was too difficult for me 👍
• mpv: Python-wrapper available (libmpv-dev/python3-mpv) 👍👍

RaspberryPi issues

Input/output

• RPi.GPIO: debouncing is not the only thing what is crappy 👎
• RPi.GPIO: pulse width modulation (PWM) is also crappy 👎
  PWM is needed for LCD display dimming
• now using pigpio as a system service (daemon) 👍👍

System and connection

• monitoring WiFi (radio signal strength RSS/RSSindication)
• easy & quick ways of restarting:
  • restarting the player only (2-button press)
  • restarting the WiFi connection stack only
• clean shutdown sequence (long keypress)
• minimizing memory wear and system load:
  disabled syslog; own debug logging goes to → RAM

Further features

• See complete list in the readme and code