Pimoroni IO Expander

Can anyone tell me whether the Pimoroni IO Expander support PWM mic? The description alludes to output only but in theory it should work as an input as well. Thanks!

I don’t think I’ve ever seen a PWM mic, did you mean PDM?

At any rate I really doubt this thing would have the sampling rate you’d need for audio, and the I2C bus speed is probably too slow for it as well.

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You are absolutely correct! I meant PDM mic.

In that case the answer is definitely no, PDM and PWM aren’t the same, and the IO Expander doesn’t have a PDM interface. I’m not sure the Pi has a PDM interface, I think it is mostly done via I2S or USB.

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