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Arduino Now Playing

Arduino Now Playing is a small project to provide source code to developers, enabling them to send "Now Playing" audio player metadata to an Arduino connected 16x2 character LCD display.

Included is also a sample client written in Go for periodically polling play status from an authorized Spotify account.

On the receiving end, an Arduino sketch listens via serial port, receives data, splits artist / track into two separate lines and displays via LiquidCrystal.h. Scrolling, if the length exceeds your usable display width.

Release Notes

  • 2.26.2021 - Refactoring, cleanup, upgrade to Go 1.16, Spotify support.
  • 4.26.2014 - Go port stable.

Spotify Configuration

  1. Create a Spotify developer account, app, retrieve OAuth client id, secret.
  2. Set environment variable values: SPOTIFY_ID, SPOTIFY_SECRET.
  3. On your Spotify developer app, ensure the callback URL is whitelisted: http://localhost:8080/callback.
  4. Run the Go spotify-client.

Roadmap

  • Unit tests, probably.
  • Additional support in Arduino sketch for very long titles.
  • The sky's the limit, share your suggestions, please!

Flashy action shots

A prototype running on a Sparkfun RedBoard receiving serial data and displaying on a 16x2 LCD character display:

Basic Prototype

My completed build featuring an Adafruit display running on an Arduino Uno

Completed Build

License

MIT. See LICENSE.md for more info.