Low latency wireless lossless audio, 2 chanels 44100 16bit , pure passive receiver with error correction. PC(or phone or tablet)->USB audio -> stm32->nrf24L01 ----> nrf24L01->stm32->i2s->pcm5102 Planned latency is about ~10 mS (it will be checked)
Measured - 13 milliseconds!
How to measure latency:
install virtual output device
https://askubuntu.com/questions/78174/play-sound-through-two-or-more-outputs-devices
sudo apt install paprefs ... enable simultaneous output to all attached sound cards and devices
connect scope to onboard card (yellow chanel) and stm32 wireless (blue chanel)
play 5 Hz rectangular pulse train