Use MCLK Pin otherwise

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weeky

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Hi,
I just have a simple question. I'm using the Audio Library to play a wav file from SD card to an external I2S Amplifier. So no audio adaptor is used. This amp does not need MCLK. Can i simply use this pin as input for a button, when I define pinMode(11,INPUT_PULLUP); after I initialised the audio connections? Or shouldn't that be done?

Best Regards
 
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