LED Vu-Meter with Microphone LM3915 & LM386 - PCB Tutorial

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  • čas přidán 12. 09. 2024

Komentáře • 70

  • @borsi99
    @borsi99 Před 3 lety

    Hello Stefano! Thank you for this fine circuit👍🏼Wish you all the best. Boris 🇨🇭

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      Hi Boris:) thanks!, happy to hear from you!

  • @ramybrahim3188
    @ramybrahim3188 Před 10 měsíci

    thank you from Morocco .
    I tried to do it several times without result, but, thanks to your diagram and component values , it , works very well .

  • @sergioa1763
    @sergioa1763 Před 8 měsíci +1

    Great project! Are you selling the finished circuit? Im interested. Thanks!

    • @Stefano91ste
      @Stefano91ste  Před 8 měsíci

      Thank you very much, I don't sell assembled circuits. However, you can find the Gerber files in the video description to buy PCBs on sites like JLCPCB or anyone who accepts that type of file

  • @jamesrudacille7046
    @jamesrudacille7046 Před 2 lety +1

    Stefano!, awesome work! I copied it and it works. But, I would like to have a stronger signal from the mic. LM 386 is a power amp or preamp? What would I have to add or change in order to gain sensitivity in the mic. For example, I have to put the mic directly to my mouth or directly to a speaker to get the meter to move. Please advise. Thank you so much for your dedicated work. James

    • @Stefano91ste
      @Stefano91ste  Před 2 lety +1

      Hi, thank you!
      LM386 is a 1 Watt amplifier.. having said that it is great for small projects, but not for applications that require more power

    • @jamesrudacille7046
      @jamesrudacille7046 Před 2 lety

      I just want to make the mic more sensitive so as not have to put the mic directly on the sound or music that I am trying to get the meter (LEDS) to move. Please advise what I can do to make the mic more sensitive. Thank you so much again for your fabulous projects. I am so happy you responded to my letter the last time. Good day to you.

  • @VDC48
    @VDC48 Před rokem

    Nice project bro 👍👍👍

  • @1954charlie
    @1954charlie Před 2 lety

    It'more than beautiful!

  • @buddhikasadharuwan3772

    I love eletronics 🤩🤩😍😍😍

  • @jyojycorpuz5834
    @jyojycorpuz5834 Před 3 lety

    Nice 😊 I like your project ✨👍💡

  • @user-tt7tq6wu5h
    @user-tt7tq6wu5h Před 7 měsíci

    I have a question!
    1.Why did you use the diode ?
    2.When I made the circuit, It was changed the Level after 100uF Capacitor. Before the Diode.

  • @luigimorelli6444
    @luigimorelli6444 Před 3 lety

    Che bello vederti tornare online... ma quanti PCB hai comprato?!?!? :-D
    Ci sto lavorando anch'io, ne vedremo delle belle... ;-)
    Domanda: il condensatore ceramico è da 47nF o da 470? La sigla 471 fa pensare alla seconda, mentre la lista componenti alla prima.

    • @Stefano91ste
      @Stefano91ste  Před 3 lety +1

      Ciao! Ti ringrazio:)
      Ho provato l’ordine da 20, in futuro li userò per altri progetti, e se sarà fattibile vorrei organizzare un giveaway per fine anno! Il condensatore ceramico è da 47nF, a volte le scritte ingannano anche me

    • @luigimorelli6444
      @luigimorelli6444 Před 3 lety

      @@Stefano91ste Se prepari un giveaway aspetto a realizzarlo! :-D

    • @Stefano91ste
      @Stefano91ste  Před 3 lety +1

      Un giveaway è una cosa che vorrei realizzare da un po' di tempo, ma temo che resterà un progetto irrealizzabile.. purtroppo pare che in Italia una cosa del genere vada "ufficializzata" e con dei costi fuori budget per un piccolo canale CZcams, e se non ufficializzata ci sono multe salatissime... Ascolta la sua esperienza per capire meglio quello che intendo: ( czcams.com/video/OhOF0GeOtdQ/video.html )

    • @luigimorelli6444
      @luigimorelli6444 Před 3 lety

      @@Stefano91ste magari un modo per soddisfare chi ti segue lo puoi trovare comunque... Resta il fatto che siamo legati mani e piedi dalla burocrazia. Grazie x la condivisione.

  • @UberWagen
    @UberWagen Před rokem

    Not sure I understand the pot on the op amp. It adjusts the "sensitivity". But how do you go about calibrating it to be accurate?

  • @1954charlie
    @1954charlie Před rokem

    My Honor, Sir,
    I did a vu meter after a video you posted. Tied to the speaker, he goes with a succulent. My problem would be that the vu meter is at a maximum for a small volume. The signal to the vu meters should be reduced. The amplifier is 8w (small). Is it ok to put a poteciometer in or not because of impedance? And how erratic should be kilo ohm. Thank you very much I would be very honored.

  • @1954charlie
    @1954charlie Před rokem

    TPA3110 15w+15W Digital Stereo Audio Power Amplifier Board'
    My question would be, is it possible to tie a vu meter to all Ic-powered mini amplifiers (power stages) loudspeakers? The TPA 311O doesn't go but TDA 2O5O goes nicely. The TPA 15w and an led secular are the last red. Where is the fault I ask respectfully?

  • @gulag5012
    @gulag5012 Před 3 lety

    Hello Stefano!
    Please make a real-time digital clock circuit 89S52 RTC DS1307, I hope you will do it as soon as possible
    Thanks you

  • @asifmaan1953
    @asifmaan1953 Před 3 lety

    very cool

  • @therealnattylion
    @therealnattylion Před 3 lety

    Hello, do you think I could easily exchange the Mic with some wires to connect the whole circuit to a Arduino Board and use your VU-Meter circuit for a MIDI-Controller?

    • @Stefano91ste
      @Stefano91ste  Před 3 lety +1

      Hi, you could do this by eliminating Microphone and LM386, then connecting the LM3915 vu-meter to the arduino

  • @sebsbatako0854
    @sebsbatako0854 Před 3 lety

    ¿Dónde estaba cuando lo necesitaba como proyecto de la preparatoria? 😞😞
    Pero bueno, a ver si lo puedo hacer después.
    Por cierto, muy bueno. 😌

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      - Muchas gracias por apreciar mi trabajo en CZcams!
      - Thank you so much for appreciating my work on CZcams!

  • @afrasmiras5576
    @afrasmiras5576 Před 2 lety +1

    What cause you study this knowledge?
    Plz reply....

  • @kristianaudrigabriel9486

    What changes in the circuit diagram do I need if I want to power it with 5V power supply?

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      At 5v you can power it without any modification, but no less than 5v

  • @deanharrysmith718
    @deanharrysmith718 Před 3 lety

    Hi, do you know where to get the LM3915 from, all my sources in UK don't stock this IC
    thanjks

    • @Stefano91ste
      @Stefano91ste  Před 3 lety +1

      Hi, in Italy I have always found them at fairs.. but in the last year I only find them on aliexpress

    • @moreware9060
      @moreware9060 Před 3 lety

      I found them here at Amazon... Please cancel the post if you feel it's not compliant with the regulations of the channel.
      amzn.to/3gc0tMz

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      I never recommend Amazon for these items, because they find the same things on aliexpress. From amazon they are still shipped from China (given the long estimated delivery time), but at a higher price. Tested😅
      Io non consiglio mai Amazon per questi articoli, perchè si trovano le stesse cose su aliexpress.. Da amazon vengono comunque spedite dalla Cina (visto il tanto tempo stimato per la consegna), ma ad un prezzo superiore. Provato in prima persona😅

  • @francescoferoldi5690
    @francescoferoldi5690 Před 2 lety

    Salve, ho provato a fare ordine su jlcpcb ma mi ha dato errore, sono giusti i file gerber..saluti e grazie

    • @Stefano91ste
      @Stefano91ste  Před 2 lety

      Salve Francesco, che tipo di errore ti ha dato? I file gerber sono nell’archivio .rar che si può scaricare dal link in descrizione video. Su jlcpcb.com va caricato il file .rar così come lo scarichi

    • @francescoferoldi5690
      @francescoferoldi5690 Před 2 lety

      @@Stefano91ste Salve Stefano, grazie per risposta.. i file sono in formato zip, quando li ho caricati su jlcpcb mi ha dato errore, ti chiedo scusa ma non ricordo il tipo di errore,,,mi pare che non abbia riconosciuto il formato.Però ho provato a vederli con Umancogbr e li vede...non so , forse ho fatto io un errore dato che sono agli inizi. Mi sono permesso , sempre per uso personale, sempre tramite jlcpcb i tuoi progetti ( vu meter e rail led), molto belli.
      ti posso chiedere un consiglio, che tipo di stagno usi?
      grazie
      saluti francesco

    • @Stefano91ste
      @Stefano91ste  Před 2 lety

      Hai ragione in questo caso ho usato uno zip, in altri progetti avevo usato rar.. ma alla fine per JLCPCB è lo stesso. Ho appena provato a scaricare il file Microphone_VuMeter_Stefano91ste.zip caricarlo su JLCPCB ed ha rilevato correttamente tutto. Su JLCPCB devi caricare proprio il file .zip (o .rar in altri casi). Ad ogni modo nel video si vede proprio la procedura di upload.
      I miei progetti li ho condivisi gratuitamente, a scopo personale / didattico e puoi usarli come meglio preferisci, anche modificarli se ti piace smanettare:) - l'unica cosa che non concedo è di utilizzali a scopo di lucro (ad esempio rivendendo le board o riutilizzandole in video sponsorizzati ecc).
      Per quanto riguarda lo stagno, attualmente ne uso uno senza piombo e con una piccola percentuale di flussante al suo interno.

    • @francescoferoldi5690
      @francescoferoldi5690 Před 2 lety

      @@Stefano91ste ...riprovo piu avanti; come ti dicevo li uso per me, sto imparando e li trovo notevoli i tuoi progetti...grazie di tutto, a presto..saluti
      francesco

    • @Stefano91ste
      @Stefano91ste  Před 2 lety

      @@francescoferoldi5690 Grazie mille!

  • @leddanushka1828
    @leddanushka1828 Před 2 lety +1

    LED 40 wireless vu meter sarcut digrame ,,,, 🙏

    • @Stefano91ste
      @Stefano91ste  Před 2 lety

      A preamplifier with LM386 and microphone should be added on input... maybe in the future I will!

  • @pietrobassoli
    @pietrobassoli Před 2 lety

    super

  • @dj_sorra8605
    @dj_sorra8605 Před rokem

    LM 3916N IS GOOD?

  • @anurag5470
    @anurag5470 Před 3 lety

    Can you make a led controller ?

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      What kind of led controller you thinking about?

  • @fitzv.9224
    @fitzv.9224 Před 2 lety

    Is this applicable to bread board?

  • @williamw.9583
    @williamw.9583 Před 2 lety

    can you post a schematic file?

  • @vaibhavk008
    @vaibhavk008 Před 2 lety

    Led chasers and vu meter are
    Meaning less projects pls share some useful projects in daily life

  • @1954charlie
    @1954charlie Před 2 lety

    Super and super! Dear friend,
    I'd say so, my friend, but I don't have the right.
    I like to help you because I've been suffering for a year and I couldn't make the audio signal bigger.
    I need a drawing with, say, two or three transistors (preamplifier for simple vu meter). I write with a fordito, and I tell you what I know, so how do you understand me? I bought everything from the net ,ready but it didn't work. The vu meter is the simple LM 3915, 1k ohm resistor and that's it! The microphone electret ,condensator .1 transistor. The signal is so good. Megyen but the volume should be weak or high. Help me if you can with a simple solution, I'm starting. BC 547.2N2222.2N39O4.

    • @Stefano91ste
      @Stefano91ste  Před 2 lety +1

      Hi, I use an LM386 as pre amplification (like this video) using transistors is not a method that I like

    • @1954charlie
      @1954charlie Před 2 lety

      @@Stefano91ste Thank You dear Sir!

  • @user-wu2mz8ii8v
    @user-wu2mz8ii8v Před 7 měsíci

    👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻🌷🌷🌷👏👏👏👏👏

  • @MiguelGPerez-lt9lk
    @MiguelGPerez-lt9lk Před 3 lety

    Ole!

  • @suimilod
    @suimilod Před 3 lety

    Como se llaman esos leds?

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      Hi, It is a Led bargraph, in video description I specified the model number

  • @sigmasquadleader
    @sigmasquadleader Před 3 lety

    Unsubbed after discovering your plagiarism from about 2 years back.

    • @Stefano91ste
      @Stefano91ste  Před 3 lety

      Hi, I think you are referring to my video in which I explain the OHM's Law (following your accusatory comment, with no explanation about it) video with an example in which with 24v I burn a 50 ohm resistor and then calculate the dissipated power. ( Video: czcams.com/video/vKFc_YJJKLg/video.html ).. could you explain it better? I think it is known that I did not invent OHM's Law, clips and explanations were recorded and written by me, calculations are based on the formula V = R x I (OHM's Law). If you are referring to the image portion of the thumbnail, it derives from google images (as specified in the video description, towards the end). So explain to me, what would plagiarism be?
      If you have seen this same video uploaded on other channels, please link it to me, Thanks!
      I'm waiting for your answer.

    • @stevem1097
      @stevem1097 Před 3 lety +1

      @@Stefano91ste Do not bother too much with these idiots posting stupid comments. You are doing great by giving away all your work for FREE... so forget these idiots. And thank you for your work by the way.