Hi,

Thanks for allowing me to join. I know my basics when it comes to electronics but when it comes to things such as this, I have to ask for help.

What I want to do is take a source voltage( 1-5v) in my case and basically make a 7 segment led display tell me the one digit voltage. So if I input one volt, i see "1". Input 2 volts, see "2" volts. Ive read about 4511's, analog to digital converters, etc. but I just can't link it all together. Any help would be great!!!

 

I just implemented that with what is probably by far not the simplest solution, but a very flexible one.

I used Arduino (Pro Mini) microcontroller and it's ADC capabilities.

 

Ah, that is still way over my head. Can anyone please give me some guidance?

 

The ICL7107 might be the way out. You can get a data sheet from the link - http://www.intersil.com/products/deviceinfo.asp?pn=ICL7107

Voltages are analog. Before you can display a voltage, it must be digitized. Using an IC like the one above is an alternative to using a microprocessor.

 

How about an LM3914, and diode-OR the output lines to appropriate segments in the display?

Ken

 

If you want a way to do it with very simple components (but lots of them) go here:
http://www.falstad.com/circuit/index.html
In the circuits menu - analog/digital - flash ADC
and circuits - combinational logic - 7 segment decoder
You would really understand how it all works if you made it like that.
If you only want to go up to 5 you can cut a few components out.