GoKawiilSprout Pi motherboard mod brings Bluetooth, Wi-Fi and USB-C to old iPods
A project called Sprout Pi (and a lesser Sprout Pico version) replaces an iPod's motherboard to add Bluetooth, Wi-Fi, USB-C charging, a microSD slot and FLAC playback without requiring soldering. The upgrade supports audio over USB, the original 3.5mm jack, AirPlay and Google Cast streaming, podcast downloads, and on the Pi model, Spotify and Apple Music apps. It works only with 3rd- and 4th-generation iPods and the iPod mini, and will launch via a Crowd Supply crowdfunding campaign with pricing not yet announced.