parasbhanot
Newbie level 4
hello everyone ,
i am working on home automation project in which Micro-controller (atmega328p ) is used . This micro-Controller is powered by Regulated power supply . I want to calculate Total power consumption in KW/hr 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 KW/hr = (1.45W x 24 hrs) /1000 = 0.03484 which is obviously wrong
What is the correct way to calculate Total power consumption ?
i am working on home automation project in which Micro-controller (atmega328p ) is used . This micro-Controller is powered by Regulated power supply . I want to calculate Total power consumption in KW/hr 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 KW/hr = (1.45W x 24 hrs) /1000 = 0.03484 which is obviously wrong
What is the correct way to calculate Total power consumption ?