Hello! I don't know if it's a topic about this open already. I was wondering how can i get rid of this variation of the analog input as you can see in the serial print bellow for this simple code for instance. Is it something physical (small variations of the V) or software, maybe something to do w…

Analog input stability

Wawa May 20, 2018, 11:51am 14

But OP asked for this

frqA = map(analogRead(A0), 0, 4095, 0, 4092);

Leo..