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However, if you would like to roughly estimate power drawn by your houshold you can construct this simple circuit: **broken link removed** , and replace 100µA meter with an equivalent load and then ADC-->microcontroller-->digital display ..
Unless you are suitably qualified you should seek professional advise before messing with mains wiring.
Start by reading the old threads in this forum. there have been a load of threads about measuring the power equipment is drawing from the mains such as **broken link removed**. Use the search.
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