AC power live voltage monitor

[Steven Dale]

Hello; I’d like help to design a circuit using the  arduino that would alow me to monitor and display the AC power line voltage (120 volts) on led’s and also if possible the frequence also (normally 60 cps). The voltage out to 4 digits 0 to 150.9 volts and freq of 55 to 65 cps. I have a UPS that would power the unit it’s self so it would remain on even during a power failure. I live in an industrial area with a lot of inductive loads as see a lot of voltage swings. And would like a way to monitor these changes. It would also be nice of some how this unit could drive a data recorder so I could show this data to my local power company so mayby they could do something about the power variations.
Anyone have any ideas?
Thanks ahead of time.
Steve D 08/25/2015@05:03

[Prabakaran P M]

Hi steven dale,

You can refer this link to get idea about reading AC voltage with a microcontroller.

http://www.engineersgarage.com/contributions/ac-voltmeter-digital-display

the below link will give you idea about ADC in Arduino.

http://www.engineersgarage.com/contribution/arduino-based-voltmeter

For the data recorder pupose you can go with online server based data acquistion systems like "Thinkspeak" You can find many tutorials to make it possible in the website.

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