VFD analogic vu meter diy

[skappy]

Hi Everybody,

May i ask you if you know some plan, schematics or even information on how to build the same VFD display vumeter as the one enclosed.

I've got 256*64 nortiake VFD, some Micrichip PICs but i need information on how i should proceed for the next building steps ...

Thank you very much for your help ...

Have a nice week end

Skappy

 

[DcibeL]

You want someone to teach you how to program or...?

 

[samsagaz]

where is possible to find vumeters like that?

 

[skappy]

Hi,
i'm just wondering if somebody has already build something similar.
I only try to find schematics and why not code if it is available ...
Thank you

 

[skappy]

What do you think of using a LM3914 and intreafcing it with a pic for displaying results to the VFD ?

Sorry for bothrting you but i'm trying to obtain as much info as i can ...

Thank you very much

 

[MikeBarton]

Hi Everybody,
May i ask you if you know some plan... snip

I think thats a picture of a squeezebox in screen-saver mode. You can choose analogue syle meters - quite groovey really 😉

Anyway, I'm very much a beginner here, but I would have thought that you should be able to use 2 of the built in ADC's on a PIC and to then draw the display (referencing the data-sheet for your display) on the vfd using straight-forward trig-functions.

Don't think you need the LM3914.

This is just my thoughts tho.....

May be easier to program in c than assembly.

HTH

Mike

 

[jaycee]

Yep, use the inbuilt ADC's will be enough. You will have to convert the signal to a single polarity signal and attenuate it some first.

If you aren't a programmer though, with no experience working on microcontrollers - forget it.