Spectrum analyser using LM3915

[inverseopamp]

Hello,

I am looking for a 10 band LED spectrum analyser using LM3915. Unfortunately a few circuits I have found on web are far too complicated for my calibre.

Does anyone have a tested circuit?

This is exactly what I am looking for:

https://www.youtube.com/watch?v=7D-ZWhCnzBE

Thanks in advance.

 

[mickeymoose]

Go to: http://s-o.webnode.cz/vu-meter/ you will find a 2x15 and a 1x40 vu meter based on PIC complete with code. Be warned: the site is in Czech! E

 

[Vasquo]

Hello,

I am looking for a 10 band LED spectrum analyser using LM3915. Unfortunately a few circuits I have found on web are far too complicated for my calibre.

Does anyone have a tested circuit?

This is exactly what I am looking for:

https://www.youtube.com/watch?v=7D-ZWhCnzBE

Thanks in advance.

Schematics are available for this project. It's pretty smart, using a single 3915 and multiplexing it to light up 10 bands.

 

[Hadighorbani]

Go to: http://s-o.webnode.cz/vu-meter/ you will find a 2x15 and a 1x40 vu meter based on PIC complete with code. Be warned: the site is in Czech! E

Hi
The page not fond
Do you have any other adress or do you have compelet things about your spectrom?
Thank you

 

[gmphadte]

ROELECTRONICA

 

[olafk]

Look here:
http://www.diyaudio.com/forums/analog-line-level/226383-christmas-project-audio-analyser.html
Original data comes from ESP at Project 136

You can even choose the number of modules. I built it and the effect is great.

regards Olaf