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[SOLVED] testing a/d pins in an microcontroller

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sri5496

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hi guys am checking functionality of a microcontroller... whats the best way to make sure if the a/d pins are functioning?


thanks in advance
 

You can check if the a/d pins are working by connecting a potentiometer as a voltage divider to place them at several voltages within its range. And programming a simple routine to read the values.
By measuring the input voltage with adequate precision you can check for offset and linearity and other deviations.
 
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