Random question, in the measuring mains current and voltage page, the code at the bottom has :
Which is fine and it all work, but what do I need to change so it only 'serial prints' apparent power figure?
You need to change EnergyMonitor::serialprint() in EmonLib.cpp.
But why do you only want apparent power? It is real power that you pay for.
Open-source tools for energy monitoring and analysis. This project uses the GNU General Public Licence