There isn't any pirate radio station involved here, just the secret is a Feather microcontroller reading the dial position with a magnet sensor, and an attached Music Maker FeatherWing with amplifier to play back your pre-recorded message over the radio's speaker.

In AdaBox 004, it's Boomy The Boombox. Boomy is a super cool boombox that likes good vibrations and enjoys beat boxing. Boomy loves playing music and likes to reminisce about 1980's culture.

With this easy-to-build project you can use online events to trigger your favorite songs.