Emonlib Voltage measurement Arduino nano

Hi,
I am using Emonllib to measure and input AC voltage of 50Hz.
The example available on the internet they are offering to offset the sinewave because of the ADC.

My case is a bit diff, I am using full wave rectifier with a really samll smoothing cap, and a voltage dividrer. That is all. I am printing out the sampleV variable that is reading the input voltage.

Can someone explain me why there is such an offset inbetween the sine waves, please see the pictures attached.


Never post code (or any other text) as an image!

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.