Hello, electronics enthusiasts, I can't figure out how to activate the i2s bus and enable audio input and output, for example pcm5102(DAC) and pcm1808(ADC)

 

My board Nano pi neo2 

I do not have your board but have you tied looking in armbian-config?

Yes, I looked at the config, but I don't know what to write there. On the previous board, I added a 5102 overlay, but this one has a different processor, and I still don't understand what needs to be added for sound input. On this board, I've seen projects where both input and output work.

I would take this as a base: https://wiki.friendlyelec.com/wiki/index.php/NanoPi_NEO2#Set_Audio_Device

I have several H3 NanoPi-NEO and use their on-board audio HW.

If you want external audio HW, dig deep into Armbian GPIO config, it can be set with some text in armbianEnv.txt, but all depends the board pinout and just reading H5 SoC datasheet for pin and signal codes how to map. Done that for an AllWinnner A20 board and lot of internet searching as well.

The connection is correct, the H3 (nano pi neo)  output works for external sound i2s, but both the input and output need to be made on a newer board H5 ( Nano{iNeo2 ), the pinout is the same