How can I build a power monitor/logger?

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build power monitor

Is it possible to build a circuit which allows measuring power consumption of my whole home, and storing data for further processing?

I heard about hall sensor, which could "do the trick", but don't know anything about them, and how to use them.

I fodun some ready-made solutions, but "cheapest ones" (100$!!) display much more data than I need, and they do not store anything, they just send out a "pulse output".
 

power logger in vietnamese

Hi,
Analog Devices have an IC for AC power measurement, but making an accurate energy meter is a a real challange. Also I think the electronic enegy meters produce an LED pulse output proportional to the energy measured. You can probably optically couple and make use of this output for further processing?
Regards,
Laktronics
 

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