Make your own LED Sign VU Meter

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More project information (schematic, parts list,....) on Instructables: www.instructables.com/id/Make-...
In this project I will show you how to create a custom LED sign that reacts to the loudness of your music, just like a VU meter does.
Parts list (affiliate links):
Aliexpress:
1x Stripboard: s.click.aliexpress.com/e/_dY2...
100x 5mm Green LED: s.click.aliexpress.com/e/_dV6...
1x Perfboard with copper dots: s.click.aliexpress.com/e/_dXx...
1x 3.5mm Audio Jack: s.click.aliexpress.com/e/_d6P...
1x DC Jack: s.click.aliexpress.com/e/_d6c...
2x LM324 OpAmp: s.click.aliexpress.com/e/_dTf...
1x 47µF Capacitor: s.click.aliexpress.com/e/_d7d...
1x 100kΩ Potentiometer: s.click.aliexpress.com/e/_dX8...
7x IRFD220 N-channel MOSFET: s.click.aliexpress.com/e/_d8b...
11x 10kΩ, 1x 47kΩ, 4x 1kΩ, 2x3.3kΩ, 3x 4.7kΩ, 2x 2kΩ, 1x 6.8kΩ, 1x 2.2kΩ, 1x 51kΩ Resistor: s.click.aliexpress.com/e/_dTP...
1x 12V 2A Power Supply: s.click.aliexpress.com/e/_dYH...
1x: Buck Converter: s.click.aliexpress.com/e/_dZO...
Ebay:
1x Stripboard: -
100x 5mm Green LED: rover.ebay.com/rover/1/711-532...
1x Perfboard with copper dots: rover.ebay.com/rover/1/711-532...
1x 3.5mm Audio Jack: rover.ebay.com/rover/1/711-532...
1x DC Jack: rover.ebay.com/rover/1/711-532...
2x LM324 OpAmp: rover.ebay.com/rover/1/711-532...
1x 47µF Capacitor: rover.ebay.com/rover/1/711-532...
1x 100kΩ Potentiometer: rover.ebay.com/rover/1/711-532...
7x IRFD220 N-channel MOSFET: rover.ebay.com/rover/1/711-532...
11x 10kΩ, 1x 47kΩ, 4x 1kΩ, 2x3.3kΩ, 3x 4.7kΩ, 2x 2kΩ, 1x 6.8kΩ, 1x 2.2kΩ, 1x 51kΩ Resistor: rover.ebay.com/rover/1/711-532...
1x 12V 2A Power Supply: rover.ebay.com/rover/1/711-532...
1x: Buck Converter: rover.ebay.com/rover/1/711-532...
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com)

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Опубликовано:

25 июн 2024

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Комментарии : 762

@movement206 8 лет назад

Your videos just keep getting better

@greatscottlab 8 лет назад

+MOVEMENT Thanks

@mr.h3377 7 лет назад

GreatScott! Hello, I love your vids! I am a young electronics tinkerer and your videos really help me understand how things work better. I am currently working on a maker fair project for the mini maker fair her in Minnesota and was wondering if I could use your design in my project. If so how would you like me to credit you? Thanks!

@proyectosledar 8 лет назад

Yesss! I have so many vu meters, but never get tired of them. the lm3915 it is a very good option but lm324 it is good too. thanks for this excelente video my friend!!! saludos

@maletil 8 лет назад

Como gusta verte por aquí Gastón :) Yo también esperaba un lm3915

@jeronimomurruni 8 лет назад

+maletil Essentially, an LM3915 is a single chip with coparators inside.

@stevenking2980 8 лет назад

OMG VU METERS ARE BOSS! I LOVE THEM! I HAVE ANALOG AND LED. Sweet! I'm not the only nut! I have a ton of old stereos from sansui to Marantz and Yamaha and Sherwood!

@thomasgotthulk3629 7 лет назад

You could also use the lm3914 for a Vu meter .C.

@danehelene5568 7 лет назад

physics 12 student here and also not that smart.. but we are currently trying to do this project and have no ideas on which resister to use and where to use them! hopefully anyone can help? we bought all the resistors @greatscott mentioned in the description and are desperate to know which goes where

@matthiasnicoloso 6 лет назад

Wow ! I'm in the 2nd year of my apprenticeship in electronics stuff, and your videos are so helpful !

@schwidola9657 3 года назад

You know you're already a pro if you can place LED's and solder them neatly in just over half an hour. That would take me almost half a day just doing that lol. Great content would like to see more LED projects :>

@shamnadabd7266 5 лет назад

Whenever I get bored,I used to watch greatscotts videos.. It's truly awesome.... Thumbs up man.. You're great

@rekt_n_line 8 лет назад

Even though I've only taken a few electrical engineering classes, I can't help but be a little happy that I do understand most (not all) of what he's talking about.

@tubata111 7 лет назад

Scott you are a real profesor !!!!! "its prery simple" he said ....

@aranegames9622 8 лет назад

this is so weird? yesterday i was looking for a LED VU-meter and couldn't find a simple / easy to follow design then you upload this a day later. awesome!

@Lvyni 8 лет назад

+AranE Games Cool!!!!

@aranegames9622 8 лет назад

+The Master Gamer SWEDEN ( ͡° ͜ʖ ͡°)

@kingsarkasmus6634 8 лет назад

Scott, du ist einer der besten RU-vidr. Awesome!

@mikosoft 8 лет назад

You make it sound like it's the easiest thing to do.

@amaanqureshi1286 6 лет назад

it actually is very simple.

@analogaudiorules1724 3 года назад

@@amaanqureshi1286 If you have some ee engineering experience you superiority complex gatekeeper, most people don't even for somthing like this, when you started out, you couldn't do this, stop being cocky and telling how it is so easy to everyone who has an opinion about it.

@douglassmalls6934 3 года назад

@@analogaudiorules1724 No it is very easy since it require minimal soldering skills. Just look at the circuit in the video, get the parts, and connect them. It isn't hard. I did things like this when I was 12 years old and hand zero experience or knowledge.

@togethia 8 лет назад

You will get a better display by adding a small capacitor to the rectified audio signal, so slow the response of the meter.

@jojothka1232 6 лет назад

togethia great idea!

@bogdanm251 5 лет назад

rectified audio signal?? if u rectify the audio signal all you get is a small dc voltage that doesn't work.

@ABHILASH6409 8 лет назад

hi ! I am 14 years old and a great fan of your channel. greetings from India . keep up the good work!

@emailausdrucker 8 лет назад

a true GreatScott again. awesome.

@greatscottlab 8 лет назад

+emailausdrucker Thanks mate ;-)

@joaquinsanandreas3222 8 лет назад

I like the layout of the boards you make it so neat and clean

@brunofonseca9686 8 лет назад

Once again Scott, great video and thanks for the knowledge. Greetings from Brazil.

@manuelgarcia-ds8wy 4 года назад

Dear greatscott you are the best, electronic youtuber

@benzeamer5278 8 лет назад

Yes!! The old intro is the best!

@agrxdrowflow958 8 лет назад

You are a force of nature!

@baukevanderkooi8712 8 лет назад

i was going to build the same thing with a lm3914, so this video is verry helpfull. thanks and keep making awsome videos.

@DenAndMug 4 года назад

Impressive work! You make it sound so easy haha! We just built a sign with LEDs, wasn't that simple and we kept it very simple!

@ryPish 8 лет назад

I'd love to see a similar project with each vertical line linked to a specific audio frequency band, maybe with RGB LED for an even cooler look :o

@AKADriver 5 лет назад

This would be a good project for using an LM3915 since otherwise you'd have to replicate this whole circuit for each frequency band. But, essentially, you'd just have the signal fed into a parallel array of band-pass filters, then fed into a copy of this circuit (or an LM3915) to drive each column.

@LiveMusicOntario 4 года назад

That would turn out more like what we used to call a "3 Channel Colour Organ" that were very popular kits back in the early 70's and life was groovy. :) I still have one of mine that is operational. Typically the circuit sent the speaker level audio to 3 simple filters to get low, mid and high frequencies. Separate sensitivity adjustments for each channel. Those drove some circuitry that ended up at 3 triacs, modifying the AC that powered 3 banks of AC lighting. Using 3 flood lights was good for lighting up a family room wall or taking to parties or using out side at Christmas time in the front yard. Blue for low freq. / Red for mids and Yellow for highs. No ICs; all discrete components. We had to be careful because half of the circuit was handling full line AC voltage.

@LiveMusicOntario 4 года назад

@@AKADriver I thought this video possibly would use an LM3915. I can't believe that part number came to me like nothing, though I haven't seen one in over 30 years. I had a bunch of them. My recollction is the 3915 was linear response and the 3914 was logarithmic, or the other way around. Plus I believe there is (was) an LM3916. Someone suggested slowing down the response which is a very good idea. If it's possible easily, putting in some peak hold would be good too. But at any rate when it came out, the series of chips opened up a lot of projects. I used them with 10 element LEDs in an IC package. Great for chassis mount meter projects, not for projection.

@Fritschge128 8 лет назад

well, that's a great beginners project! thank you very much Scott!

@TheMoeP 7 лет назад

You make it look easy! last time I tried doing a vu-meter I didn't sleep in 3 days

@DeTrOiTXX12 8 лет назад

That was a great project. Well done!

@devjock 8 лет назад

Ah Lochmaster! I designed a modular synth with stripboard with v3 of that software many years ago. Super cool software. It even lets you put resistors on the backside, and at odd angles, etc.. Massively useful. The site is probably still online somewhere. The ASM-1-SB edition. Good times!

@tudu_list 7 лет назад

Long back I made a similar one with LM3914. Nice weekend project BTW!

@id513128 8 лет назад

It's very hard to doing these PCB without flexible wire lol. It make me remind to old circuit's project which is very terrible. Good job GreatScott! Keep doing short but awesome video!

@lorenzogumirato3626 8 лет назад

Really interesting video. My compliments Scott!

@TheJavaSync 6 лет назад

Like always, You are Great !!!! Scott !!!

@XenoContact 8 лет назад

Super sweet dude ! See if you could slap in a multi color LED disco ball that can be controlled with bluetooth to your future projects that'd be really neat as well.

@shlomibarg 8 лет назад

I love you videos , they are very professional , keep up the good work !!!

@pablomosquerabarrero7981 5 лет назад

am from colombia and your projectas are awesome

@chezneydalevangroeningen6879 7 лет назад

I love Great Scott's video :)

@Hefri 8 лет назад

Nice video, greetings from Finland!

@electronictoj5379 6 лет назад

i love u great scott iam a kid and i have been trying out your projects

@maxximumb 8 лет назад

Brilliant project.

@svenb4475 8 лет назад

THIS IS FREAKING AWESOME!!!!!

@SrijanMukherjeesinjar 7 лет назад

Looks Awesome!! The next thing to do would be a full K band spectrum analyser with the LED sign

@matteopalumbo5716 5 лет назад

you're a good youtuber. everithing is explanated very well

@electronic7979 6 лет назад

Excellent project

@Krishna245194 8 лет назад

As always you are awesome!

@zaidhussain5206 8 лет назад

Thank you for sharing , you creative as usual

@surajsurya1928 6 лет назад

You are an electronics god...love from india...

@davidenesi5669 8 лет назад

Very nice! Great vid!

@naitikshailendrakumaryadav2824 5 лет назад

I had made vu meter using transistor and IN4148 diode. Each led has saprate transistor. But it required more power as input signal. I connect it with speaker output of an amplifier and add a 10 uf capacitor in signal line. Its results was great. It gives a little delay to fall down of led light and also led lightup brightly.

@almasjamie3560 7 лет назад

this project is too good

@sediesbo 5 лет назад

Love your videos! I would really appreciate a more in depth look at how it works however! Like how you did the math to figure out all the dffirent resistors, mosfets, etc that you would need.

@PAWTeamUnited 7 лет назад

thanks man you have save on a summer shool electronic project

@teadrinkingilluminati9173 8 лет назад

Absolutely awesome! Love it

@stevenking2980 8 лет назад

Excellent video! I love your multimeter and scope too. Very nice.

@stevenking2980 8 лет назад

I subbed a long time ago. Good videos.

@videosfeeder1234 7 лет назад

Cool project, Bro

@TheBigBigBlues 8 лет назад

Great project!

@KaienSander10Official 8 лет назад

Next level VU meter ;)

@nicojovellanos6269 6 лет назад

i like your post im electronic tech for 40 years now but I would like to do it again as a hobby thanks...

@DavixDevelop 8 лет назад

This is just what I was looking for :)

@34Gw 5 лет назад

Great!!!Scott!!!!

@user-qr2ko9em3m 7 лет назад

everything is amazing from you

@EvilTwin6661 8 лет назад

+GreatScott! Thanks for answering. I'll try it when I get it.

@LikeOnATree 8 лет назад

Awesome project!! Thanks!

@AlejandroMartinez-lg9mx 6 лет назад

Maybe you should try wire wrap, it's easy and practical to use when it comes to prototypes. Cool video, nice job!

@CraigMansfield 8 лет назад

Lovely work

@KerryAllenJackson 8 лет назад

nice video.. I'm thinking I might take a crack at building my own version of it ☺

@GatoRockYou 8 лет назад

Thank you very very much for your videos! stay creative! :)

@piratapan 8 лет назад

Awesome video, love it!

@EMSAYMADA 8 лет назад

Interesting! Great work mate :)

@Laziter73 8 лет назад

As an industrial Q-solderer, I'm having a bit of pain watching you cutting component legs AFTER applying the solder. I know this is how a hobbyist gets the job done, I'm no stranger to it either, at least on prototype boards. Well anywho, great stuff, I like your projects and you've been a great inspiration for making projects in my home :) Keep up the good, no great, work :)

@thomasalexander1563 7 лет назад

Nice tutorial again..

@Nikoxion 8 лет назад

Wow, this. is. awesome! :D Simple, but awesome

@tim-214 8 лет назад

This is awesome.

@ItsMe-ic5oc 3 года назад

Great video! Im still waiting for the LED Cube VU Meter Color Organ combo.

@casaverdero 8 лет назад

I have built a VU meter a while ago but I used an arduino and made 3 led bars for high mid and low frequencies.

@MYNICEEV 8 лет назад

Awesome my very good friend.

@sauravofficial3798 5 лет назад

Thank you for this video

@Oliver-ie6md 8 лет назад

thanks for making this vid:) my comment was used!!

@bresporttv5420 4 года назад

Very awesome! Thanks :)

@simplelifediy1772 8 лет назад

great video!!!

@ellooku 8 лет назад

Guy you are too much. Reminds me of my Dad.

@tbmtech5651 8 лет назад

you are a beast! 👍👍👍

@MrBiky 8 лет назад

It's so bananas !

@MalithArambage 8 лет назад

awesome project :-) !!!

@isacson 8 лет назад

good! without arduino. Very good . !!!

@nick1p.x226 8 лет назад

You are a genius :)

@thegreatxyz 8 лет назад

very nice video

@ahmetasantas7099 8 лет назад

you are the best

@18minimus18 6 лет назад

Thank for this I’m going to get all the parts ordered and make one myself but with my gaming name tag instead

@007satkat 8 лет назад

+GreatScott: Nice video was searching something similar for long time. But i think this video is a little less detailed than your previous videos. Any ways the project looks awesome.... :)

@strategicpetersigns9934 5 лет назад

wau! nice job

@MrPinknumber 8 лет назад

it looks great :D

@DavidCoptil 8 лет назад

3:22 At this moment I expected you to say "okay, I'm joking, we're going to use a simpler method"...But you didn't :(

@tunahankaratay1523 4 года назад

That's super simple.

@DanielsGameVault 5 лет назад

Can you make it stereo by omitting the resistors following the input jack and wiring L and R to separate circuits ?

@FinlayDaG33k 8 лет назад

bookmarked this shizz :D I have no clue what the schematic did, but it's awesome :D also, it would look alot better (imo) if you used green, orange and red LEDs, but that might be personal preference

@Pertamax7-HD 8 лет назад

like it

@NaYonOFFiciaL 6 лет назад

Nice Brother

@eladdov8601 8 лет назад

Great Video as always i see that for the LEDs you used a stripbored , and for the VU meter circuit you used a perfbored, when do you suggest choosing a stripbored over a perfbored or vice verca?

@nicklandyvalverdesamame7691 7 лет назад

veri veri good!!

@hafizuddinmohdlowhim8426 6 лет назад

GreatScott is LED geek

@jeantsaiaviation 8 лет назад

who is a fan of scott but doesn't know anything he talks about ?

@user-wx7rq1oi1c 8 лет назад

Present

@meowskullsgaming 8 лет назад

Well, i'm not alone anymore :')

@jeantsaiaviation 8 лет назад

+Music Tests uhm no read more replies

@alexcho8557 8 лет назад

Me.

@Rotated 7 лет назад

^^^^^^^^^^^^^^^^^^^^^^^ same xD

@ankushredekar2011 7 лет назад

u r amazing....bro

@power-max 8 лет назад

For version 2.0, get a bunch of capacitors/inductors to make resonant tank circuits and several of those chips to have crude but appealing spectrum analyzer!!!

@power-max 8 лет назад

Probably the simplest way to do that is to use some LPF filters for the first couple letters and HPF filters for the last couple.

@InfinityArcane 8 лет назад

+Power Max That's actually a pretty neat idea!

@RealGurkward 8 лет назад

Hello Great Scott! I really like your videos and im going to ask if you can do a tutorial about how to use a laptop keyboard as a normal keyboad like you did with the screen to a monitor! Thanks!