Here' the breakdown: I made a voltage dividing circuit to get 12v down to 5v (just under 5v actually). I made a full wave rectifier with 4 diodes and now i have a 5v dc signal but still with the half sine wave peaks and valleys. I see this in the serial monitor - no problem. But now.... I c…

AC to DC conversion A0 serail read

Wawa May 24, 2018, 3:48am 5

DVDdoug:
Add a resistor from the analog input to ground.

You need a bleed resistor to ground.
Leo..

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