LED display - digital spectrum analyser

[navelolol]

how do you guys do this??? i need to know!

[bPaIsNtKaYrd]

oh shit ur spectrum analyzer is more sensitive than my S.A. but why is my s.a. so messy

[nhekborin]

nice, i want to do it too.

[geowal91]

Where did you get the dot matrix? Have you got any plans for someone else to build this?

[mnprg]

@geowal91 I built the dot matrix display from individual 5x7 LED modules. You can find these cheaply on ebay from chinese sellers, but I got mine from rapid-electronics. I don't have any plans at the moment I'm afraid.

[lorddrag140]

i need one.

[darkogbk]

Hi. What did you use to program the interface? what language and/or libraries? where can I find more information? I want to control a PIC via USB. I have the FT232RL USB to UART

thanks!

[mnprg]

@darkogbk I used Delphi and my FTDI interface library - search google code for 'ftdiclass'.

[l0gh1n4s]

hey I have a question.....I can use another type of PIC for example PIC16F628?

[mnprg]

@l0gh1n4s yes you can use any PIC you desire as long as you have enough I/O pins (or expand your I/O using other methods) and the PIC is fast enough to refresh the display/process data.

[l0gh1n4s]

@mnprg

ok thanks for help....and I think I will use 16f628 because it has enought pins (the RA and RB output pins)

[babupsp]

schematics would be appreciated bro.....

[Cbradio2222]

3:15 music name pls :D

[mnprg]

@Cbradio2222 the song is Tara Mcdonald - Delirious

I was actually playing 'Marcie - Behind the Lyric 8'

[kjun13]

thats aweosme, but looks way to complicated for me to build.

[MrMooshtaba]

hi

what's the second song name ?

the song girl is speak.

[daxweb]

great

how many time for make it??

[daxweb]

i remember the grat feeling when i did the same thing time ago...

great feeling!!!

congrats

[generalgoran]

Hey, why did you stop the sound? I wanted to listen!

[mnprg]

Haha :) That track at the end was "DJ Melo - Vocal de luxe edition 10"

[generalgoran]

I know, I have it. but still .. not cool to cut audio like that

[loko95ftp]

@mnprg

dude put a price on this ill buy it

[mnprg]

@loko95ftp I'm glad you like it :)

[DJEnoiZe]

omg i like this ;)

Want to have some too :D

[THEtechknight]

your spectrum is toooo fast. slow it down some.

[lukzter]

Thats Awsome Man!! how much did the parts cost you to buid it?

[mnprg]

Thanks. It didn't cost much, the most expensive parts being the LED dot matrix modules (£0.80-£1.50 or so from rapid electronics), FT232RL (£2.50) and PIC microcontroller (£1.xx).

[killercroc10]

do you have the rapid online order code for the matrix's, all i can find is 57-0690, which is green and costs about 4 times as much.

ty in advance.

[mnprg]

Try 57-0157 - currently on promotion - a little more expensive than when I bought them however.

Alternatively you can buy from a HK seller called sure-electronics on ebay.

[killercroc10]

ty for the quick response, I'm planning to use them in a similar project.