Power factor, current, frequency implementation

[erdincsk]

Hello,

Is it possible to implement other reading from chinese power meter such as current or power factor?

Because not all loads in our house is ohmic. There are inductive loads such as refrigirators or laptop chargers etc.

If the load is ohmic, the we can use this current formula I = P/U. Because power factor = 1

But when the load is inductive, we need a third variable from power meter which is power factor.

If we can read the power factor all the time, then we can change our current formula to = I = P / (U * Pf)

Or we can just simply read current value from power meter then we can calculate power factor. It does not matter.

But i could not read current or power factor values from power meter by editing your code.

I think i need some help here.

[torntrousers]

I think Karl might be a better person to ask about that, I'll ask on his blog post about this - here.

[zerog2k]

here is what I'm doing although not sure if it's exactly correct.. https://github.com/zerog2k/power_meter_cs5460a/blob/master/power_meter_cs5460a.ino#L174-L205

There are some magic constants - not sure why they are what they are... it's been a while since i read the datasheet...

[erdincsk]

@zerog2k thanks for the feedback. I will try to implement your code.