AC voltage measurements with Arduino

[hasan995]

hello. I need your help. how to read ac voltage from Arduino Uno? I just want to display the value ac voltage at LabView

[RavensFan]

You've posted into a 4-year old thread that has nothing to do with an Arduino.

I've moved your post to its own new thread and updated the subject line.  What you have is really more of an Arduino question than a LabVIEW question.

[Hooovahh]

You are replying to a 4 year old thread which is asking about a 9219.  Even if you were asking about the same hardware I'd suggest making a new thread.  You are asking about unrelated hardware, and should make a new thread.  That being said you are going to want some kind of sensor to do conversion to a signal the Uno can accept.