Quantity   Component name
4 × PCA9500 I2C EEPROM & I/O Expander
8 × 74HC157 Logic ICs / Decoders, Encoders, Multiplexers, Demultiplexers
1 × EP91H0 HDMI ARC rx/tx
1 × CS8416 SPDIF decoder
1 × Raspberry Pi As a source of I2S audio
1 × R. Pi DAC Easy way to convert I2S audio to analog