@fly135 @p-rimes thank you guys for your input. finally got chance to revisit this problem on a new board, hearing distinct sound from left and right mic although the signal is quite distorted - and with some combinations of settings (sampling rate, APLL) there is very loud ringing. will need to ver...

@p-rimes not yet, was distracted by other project but will be looking at this problem again soon - and update here.

Hi Guys, I've had success connecting this SPH0641LU4H-1 MEMS PDM microphone to I2S interface and it works - sound quality is great. However, the incoming samples do not seem fall into their respective L/R channel - they appear the same regardless whether the mic is configured as L or R. The data sho...

Hi! I don't think a board like this would have battery connected to any ADC pin, that would mean one pin permanently allocated. But you can modify it easily, just use a voltage divider to stay within allowed voltage ranges (e.g. to get it to one half, using two 47k resistors, that will draw 50uA max...