hello everyone ,
i am working on home automation project in which Microcontroller (atmega328p ) is used . This microController is powered by Regulated power supply . I want to calculate Total power consumption in KWhr so that i can calculate my monthly electricity bill if i run my circuit 24/7.
To simplify Calculations i replaced atmega32p with simple led. Then i measured input rms voltage and input rms current using multimeter on input side as shown in my attached circuit. i have got the following results >
V(rms) = 220 v and I(rms) = 6.6 mA
So P(rms) =V(rms) X I(rms) = 220 X 6.6 mA = 1.45W
in KWhr = (1.45W x 24 hrs) /1000 = 0.03484 which is obviously wrong
Note : Cost of 1 unit = 8 bucks in my country
What is the correct way to calculate Total power consumption.
i am working on home automation project in which Microcontroller (atmega328p ) is used . This microController is powered by Regulated power supply . I want to calculate Total power consumption in KWhr so that i can calculate my monthly electricity bill if i run my circuit 24/7.
To simplify Calculations i replaced atmega32p with simple led. Then i measured input rms voltage and input rms current using multimeter on input side as shown in my attached circuit. i have got the following results >
V(rms) = 220 v and I(rms) = 6.6 mA
So P(rms) =V(rms) X I(rms) = 220 X 6.6 mA = 1.45W
in KWhr = (1.45W x 24 hrs) /1000 = 0.03484 which is obviously wrong
Note : Cost of 1 unit = 8 bucks in my country
What is the correct way to calculate Total power consumption.
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