Birduino: A card-triggered audio player for [learning] the birds
Summary
Birduino documents a card-triggered audio bird-learning device built around a TonUINO open-source audio player, NFC-tagged bird cards, and a custom acrylic enclosure. The post covers hardware assembly, software configuration, audio sourcing from the Cornell Bird Sounds collection, and mapping cards to calls, with notes on enclosure design and future extensions.