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:

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

License

MIT. See LICENSE.md for more info.