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Topic: MKRZERO FFT spectrum (Read 191 times) previous topic - next topic


Hi to everyone, I'm new with Arduino and I purchased a MKRZERO plus a ICS43432 I2S microphone to realize a "spectrum analyzer as for the demo program reported at


I found following problems:
1) the schematic diagram seems to be NOT correct or at list, not "in line" with the description of the PINOUT reported in the example.

2) changing the connection of the microphone (SD to PIN9, WS to PIN 0 and SCK to PIN 1), sometims it seems working but it is not stable.

Is there someone that can help me?

Many thanks in advance,



I'm sorry I found a mistake in the connections: the schematic diagram is right!
Now it seems working!


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