Designing digital AC Wattmeter using Microcontroller

[Suvodeep]

Hi All,

I want to design a digital RMS wattmeter using atmega/PIC microcontroller which needs to be operated at a range of 210-230 Volts. The output needs to be displayed in 7 segment LEDs.
If anyone has already worked on this kind of project, then please help me out to design an accurate circuit and program a suitable microcontroller with the LEDs. Sample source code for microcontroller would be helpful.
Please help.

Thanks.

 

[barry]

I think the point of your homework was to teach you how to design a circuit, not teach how to ask somebody else to design a circuit for you. That would be a business class, not an engineering class.

 

[DanyR]

Hi, I've made something similar but the output was shown on LCD in stead of 7 segments.
See https://www.edaboard.com/threads/343354/. Perhaps it can help you.