hey i read and old topic for fast analog read here Arduino Forum i try this code on my arduino to get ac signal from transformer 50hz. but why i did not have the sinus graph instead square wave i get here [image] what is wrong with result?

Analog read

system April 19, 2013, 8:37am 9

hey no :...sorry mike, im not arguing with u,

i see now, so what i measure is not Vp-p value..ok i will modify the circuit and see the result..thank mike XD

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