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Hi how to convert analogy signal to digital signal in arduino

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Hi! Can some one help me with Arduino codes for converting analog signal to digital signal.

There four input analog signal wishing to convert each them to digital signal.

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  • First off, I don't see why you are using analogRead(), unless your switches in your schematic are just representations of something that outputs an actual analog signal - You are not reading Analog. Your pins will see either LOW (switch close) or HIGH, assuming the internal pullups are set. So why not use Digital pins for this?

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  • First off, I don't see why you are using analogRead(), unless your switches in your schematic are just representations of something that outputs an actual analog signal - You are not reading Analog. Your pins will see either LOW (switch close) or HIGH, assuming the internal pullups are set. So why not use Digital pins for this?

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