I see this issue has been posted a number of times including the one I stole my tittle from but yet I do not see a solution to any of them.
I am using the current_only.ino program as supplied in EmonLib and get the exact same results as described in a previous forum post with the same title by hammad426623.
As hammad426623 posted I also get a current of 0.13 A with no load.
In other words, with a 120V source it is telling me that the "no load" is consuming around 30W. Or, if I were measuring with a 240VAC source it would be 60W.
And I have spent a number of days now tinkering with little improvement. For example, I have carefully soldered these parts directly to my uno with the electrolytic capacitor in parallel with a 0.1 ceramic and even tried a 10uf ceramic.
If this is the way it is then I do not see this as being very useful. So I have two questions:
- Is this as good as it works or what am I doing wrong.
- Is there any code someone has done that does work properly that can also measure real power and pf etc.?
Thank you .