Open-source firmware that turns a Raspberry Pi Pico 2 W (or the Waveshare RP2350B-Plus-W) into a UAC 1/2 sound card that streams to Bluetooth headphones with the hi-quailty codecs.
Support LHDC-V5, LDAC, AAC-LC and Apple AAC-ELD. Also supports Advanced Accessory Control Profile for Airpods