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Topic: Arduino DUE noise while playing audio from SD (Read 500 times) previous topic - next topic

venantas

Hello fellas, I have a little problem over there. While playing audio from arduino due SD card module, I get periodic noise, like pulsing, maybe yu know what could be a problem? I unsoldered dc dc module and connected power from 230/12 transfomer directly to lm7805, but noise stayed the same, maybe its 230/12 transformer causing distortions? thank you for answers, I attached my schematics and photo of my project to imagine how it looks like.

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