need help in AC/DC voltmeter

[awan]

OK, I added 2 and 2 and got the result 4.64.
I assumed the pot on the schematic was a zero pot, I guess it must be for scaling.

JimB

what do u mean by 2 and 2?

 

[audioguru]

Look what happens if you make it and use it exactly like they say in the datasheet:

 

[JimB]

what do u mean by 2 and 2?

It is an idiomatic English expression.

I will try to explain.
If you know one fact, and another fact, you can use these two pieces of information to deduce something else.
So, putting 2 and two together..... (mathematically 2 + 2 = 4).

But what I did, I knew we were talking about zeroing the display and I knew there was a pot in the schematic, so the pot was to zero the display (NO!).

So in this case 2 + 2 = any number except 4.

OK?

JimB

 

[microsystem03]

Ic for digital volt meter

hello..can anybody help me about making an ac/dc led display voltmeter..
Or can anybody give me a site having this project.
I've researched a dc led display voltmeter in this link
https://www.electronics-lab.com/projects/test/014/index.html
..is there anyone have a schematic modification in this circuit for measuring ac.?.please..i need your help asap!!
Thanks!!!

please send suitable ic for ac digital volt meter

 

[Hero999]

please send suitable ic for ac digital volt meter

How much will you be willing to pay for it?