I’m using the pHAT DAC on my raspberry pi zero as an audio output and it works very well. However, after I set up the pHAT DAC according to the instruction here, I found that I cannot use my other audio-based board (Seeed 4 mic array, an audio input device) which works well before I set up the pHAT DAC. I listed the audio input devices in the terminal using arecord -l when the mic array was connected to the raspberry pi zero and it gave me that there was no audio input device. I think the setting up of the pHAT DAC may block the system to read other audio devices, or there are some other reasons. Is there any way to recover from this?
Thanks a lot!