The Adafruit 1790 Expansion board, manufactured by Adafruit, features an MP3 decoding function ideal for audio projects. It supports playback of Ogg Vorbis format and offers a line-out for audio connectivity. This board is typically used for DIY electronics to add sound capabilities. *Customers looking to resell on eBay or Amazon should contact Adafruit directly. https://elecena.pl/product/28858110/adafruit-1790-expansion-board-audio-codec-midi-mp3-ogg-decoding-spi-interface 2025-05-29 https://elecena.pl/product/28858110/adafruit-1790-expansion-board-audio-codec-midi-mp3-ogg-decoding-spi-interface 2026-07-18 https://elecena.pl/product/28858110/adafruit-1790-expansion-board-audio-codec-midi-mp3-ogg-decoding-spi-interface 2026-09-04 https://elecena.pl/product/28858110/adafruit-1790-expansion-board-audio-codec-midi-mp3-ogg-decoding-spi-interface 2026-10-21