Electrical billing estimation for a home by using a microcontroller
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This paper presents a design and development of electrical billing meter for a home by using a microcontroller with measures electric current and voltage. The device consists of three buttons: 1) for increasing electrical billing control 2. for changing display screen. and 3. for decreasing electrical billing control. The display is LCD 16x4 and consists of three screens 1. for showing electrical billing per unit 2. for showing electrical parameters: voltage in volt, current in ampere, power in watt and 3. for showing electrical billing per hour, day, month and year. Finally, the meter was tested with varying electrical equipment and measuring the electrical billing. The result was 95% of accuracy.