How to make audio level indicator with LM3915 ic - freeform circuit │SimpleCircuits

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How to make audio level indicator with LM3915 ic - freeform circuit │SimpleCircuits

Рет қаралды 2,694,058

Күн бұрын

Hello everyone, have come back to my channel. In today's video I will make audio level indicator with LM3915 ic. This is a very common simple circuit. There have been many instructors to make this circuit. But I do it a bit differently, freefrom circut.
Hope you guys will receive it
Components I use:
- 5mm yelow LED x8
-5mm red LED x2
- LM3915 ic
- 1k2 resistor
- 10k pot
-1mm core wire
If you like, please subscribe to me. Thank you very much!
All copyrights by SimpleCircuits . Do not reup !

Пікірлер: 488

@SimpleTechvn 3 жыл бұрын

Cám ơn các bạn đã xem video, hãy nhấn like và đăng ký kênh để ủng hộ mình nhé ! Video mới nhất- new video kzfaq.info/get/bejne/fd6daamDlpeWo5s.html I'm from Vietnam, thank you for watching !. Thank you very much for watching the video. Good day to you!

@user-be4tq3vi8o 2 жыл бұрын

Под :) дробь. Ся!

@shuvo1348 2 жыл бұрын

@Nayana244 Жыл бұрын

Hlw plzz help

@Arijitkumar-qw5zh 9 ай бұрын

Bhut.acha.circuit.bnaya.aapne.mi.arijit.kumar

@charlieross-BRM 2 жыл бұрын

It is encouraging to see that special purpose chips I had over 30 years ago are still finding use today. I remember there are linear (LM3914), logarithmic (LM3915) and VU (LM3916) versions of these. I recently discovered that inexpensive function generators are still using the ICs I built mine with around 1985 - eg. Exar 2206 and others. I used to have stacks and stacks of Popular Electronics and Radio Electronics magazines. One time dropping off radios at a repair shop around 1985, I asked about an 'Ampzilla" I saw on the shelf with a repair tag. I was told it had been there for years because it was so old - no documentation could be found to aid him with one little component he couldn't recognize. I still had the 1969 edition of R-E with EVERYTHING needed to build that kit. He had it repaired within the week.

@SimpleTechvn 2 жыл бұрын

Thank you friend!

@paulmichaelfreedman8334 2 жыл бұрын

the VU version probably performs Fast Fourier Transform(FFT). That's a nice thing to have in an IC. Dave's Garage used an ESP32 to do all the muscle work (FFT among other things) for his LED matrix VU meter and spectrum analyser, but now I'm thinking this IC could be paired nicely with a raspberry Pi Pico, as that little thing is powerful but not enough for FFT. This chip can do that with the outputs tied to the Pico's GPIO inputs. You wouldn't know if this IC also can perform FFT on a selected bandwidth for spectral analysis?

@charlieross-BRM 2 жыл бұрын

@@paulmichaelfreedman8334 I don't know. I'm not very good at going beyond 'cookbook' instructions. I really admire the guys I bump into while browsing surplus stores that can take some obscure items and turn them into something that performs better than the original and even some current devices for less money. They'd never tell the surplus store that or the prices would go up :)

@paulmichaelfreedman8334 2 жыл бұрын

@@charlieross-BRM I just checked out the datasheet (Why didn't I just do that instead of asking, duh!) but it's a very simple setup. No spectral analysis, just analog level to digital conversion for the full spectrum.

@latinobazaar 2 жыл бұрын

I made one of these when I first learned of the LM3915 IC back in 1980. Also, the LM3915 was a major component for steering control in the remote control riding lawnmower I built back in 1981.

@user-de1rh2lx4u 2 жыл бұрын

А я сделал бакомер На современных авто иногда глючит уровень топлива.

@SoapinTrucker 2 жыл бұрын

Wow!!! 1980! I was in 12th grade High School, and was just getting into LED's, in electronics class, and I think it was an article in Popular Electronics that first caught my eye about the LM3915!!!! I was filled with wonder and excitement! I never used the IC, but sure dreamed of the possibilities!!! LOL :) (I later built a breadboard circuit using LEDs to make a sequencer circuit though, and that quenched my thirst for the time! I was stuck on stupid, for marquee lights, like the old mechanical driven ones at carnivals!)

@latinobazaar 2 жыл бұрын

@@SoapinTrucker Kool. Glad to see there was someone else using the IC back then.

@SoapinTrucker 2 жыл бұрын

@@latinobazaar LOL Thanks, but I did not get to use it, nor even buy it, I just read about it in Popular Electronics, but sure wished I could buy it! :)

@srijandas2748 Жыл бұрын

What your age now????

@der.Schtefan 2 жыл бұрын

I would never be able to work anything this precise, let alone solder it. It would short circuit and burst into flames. Full respect for your craftsmanship.

@SimpleTechvn 2 жыл бұрын

Thank you friend!

@atanubardhan8116 2 жыл бұрын

Hey Schtefan, you are not alone man, I built a radio that never made a sound! So peaceful it was.

@user-ds9no7go5k 2 жыл бұрын

Простейшая схема. Но, так шикарно и подробно расписан процесс сборки. Автору 10 баллов!!!

@rio_s4041 2 жыл бұрын

Точняк.

@wmonk5642 2 жыл бұрын

Простейшая она с этой микросхемкой. А без неё?

@teknoman117 2 жыл бұрын

Freeform circuits are super neat to look at. Makes me think of an old vacuum tube shortwave radio I took apart years ago. The tubes were mounted and sockets and all of the other components were just point to point soldered between the legs of the tube sockets.

@SimpleTechvn 2 жыл бұрын

Thank you !

@geoffmooregm 2 жыл бұрын

I made one of these in highschool. I then machined a bar of aluminum for the LED'S which I had mounted on a separate PCB and used a ribbon taken from one of my old computers to connect everything so I could put the electronics in a box and have the display on the outside. Worked great 👍. I had plans to make several and make a big display with left and right channels and 5 bars each with filters on each so they would show different frequencies.

@jacobpoucher 2 жыл бұрын

Lol what high-school did you go to?

@geoffmooregm 2 жыл бұрын

@@jacobpoucher Just public school here in BC, Canada. We had a VERY nice wood working shop. A pretty good metal working shop and electronics. We were lacking an Auto shop which some of the older high-schools still have. But my school was new (at the time) and a full automotive shop was out of the budget. Two of the local schools have a very successful drag racing program which my dad was a part of way back in the day. Worked out good for me though. I was starting into cabinetmaking but discovered I was quite allergic to softwood dust so I switched to welding right after high-school and did that for 15 years and slowly transitioned into a full time welding inspector.

@PVHyperativo 2 жыл бұрын

Trabalhei como técnico em eletrônica há mais d 20 anos atrás. Esse tipo d circuito era minha brincadeira meu passa tempo, pena q a eletrônica mudou muito, hj sou da área da saúde, foi obrigado a mudar d profissão p não virar um "profissional obsoleto" como tudo nessa área d eletrônica vira um dia. Descartável.

@ukaszbiernacki8659 2 жыл бұрын

3:10 amazing effect, keep filming this way

@juanmanuelguevaratorres1537 2 жыл бұрын

Cuando ví la matrícula del IC me invadieron a la mente infinidad de aparatos como grabadoras, consolas, los primero stereos Panasonic y un larguísimo etc con este componente. Es nostálgico y bueno saber que a fechas recientes se siga usando.

@user-no4os3vt9c 2 жыл бұрын

Мысль и поделка для меня не новость, Но Большое Уважение за Красивую лаконичную поделку . Красиво-респект!!!. Люблю красивый, аккуратный навесной монтаж.

@SimpleTechvn 2 жыл бұрын

Thank you!

@RemeslennikCW 2 жыл бұрын

Просто и доступно, при этом перфекционизм зашкаливает!!!👍🏻👍🏻👍🏻

@user-fn9xr2tz7o 2 жыл бұрын

Такой аккуратный и красивый монтаж и пайка это сложно очень. Сам всю жизнь с паяльником.

@mallatv6292 2 жыл бұрын

Very good. I like. Now my creativity is growing. Don't get tired of creativity.

@mallatv6292 2 жыл бұрын

11111

@SimpleTechvn 2 жыл бұрын

Thank Friend!

@RotaryMarx 2 жыл бұрын

looks real to me (edit : thank you for heart)

@ryanbarrett1949 2 жыл бұрын

once again your steady hand and technique is really impressive

@jeanfrancoisvandiest9729 2 жыл бұрын

hello again my friend 😃👋 just like for the passion of the drone fpv electronics is one of my passion too 🙂👊👍 can't wait to discover more, good Sunday and good hack see you soon😜✌

@SimpleTechvn 2 жыл бұрын

Thank you friend!

@bangmai2554 3 жыл бұрын

Good production. Slow work meet great help for viewer able to follows the project with confidence. Highly appreciate.

@SimpleTechvn 3 жыл бұрын

Thank you friend !

@ZebbMassiv 2 жыл бұрын

Imagine a whole dj mixer built like this. This is just one part of the puzzle.

@ycdcherokee 2 жыл бұрын

Omg this guy is a soldering artist.

@Hasan... 2 жыл бұрын

How neat do you want it to be? Him: Yes.

@DIYTractorstories 2 жыл бұрын

Wow your creation is amazing. I love it. I've completed a cultivator science project. You see.

@sirflop1220 Жыл бұрын

holy molly ! this is going on my speedometer ! thanks for the tip !

@martakaczynska2578 3 жыл бұрын

Stadion Żużlowy wybudujj. Z parkingiem 3-4 Piętrowy , na Srodku toru połuż Panele o wymiarach Boiska do Siatkówki.

@MatthiasLenardt 2 жыл бұрын

Really good! Keep on rockin'

@Kimchi_Studios 2 жыл бұрын

Dayum! This exists? I have to try now👍

@SimpleTechvn 2 жыл бұрын

Thank you friend !

@KmBD1 2 жыл бұрын

He made a wonderful thing and showed it. It was very nice to see...

@SimpleTechvn 2 жыл бұрын

Thank you friend !

@gaweown Жыл бұрын

I am never seen before, i realy like this tutorial

@tennivarghese867 3 жыл бұрын

Excellent fitting.. Congratulations..super creativity..

@robman80808 2 жыл бұрын

That's a work of art! Well done!

@trafo5357 2 жыл бұрын

wow. it reminds 80's cassette players

@_GhostMiner 2 жыл бұрын

*This is like the wonders of electro-mechanics* 😅

@rahulpatelgujratahmedabad3497 Жыл бұрын

GOOD TICHING KARTE HO AP THANKS 👍✌️👍👌👍👌👍✌️

@DamirUlovec 2 жыл бұрын

There's also a "dot" mode featured with this series IC, too bad you didn't covered it. :)

@AMMCElectronics 2 жыл бұрын

Audio coupling signal circuit is missing. This circuit could introduce noises to the audio net.

@Tusharartgallery Жыл бұрын

Vai kya video bnaya hai aapne yar dil khus ho gya...itni safai k saath apne explain kiya hai😍.god bless..apka channel bohot aage tak jae🙏

@anoopsahal1202 2 жыл бұрын

Your devices are works of art!

@pityu2137 2 жыл бұрын

I like how clean your work is in school we work with little white board you stick in the wire and ready to go but everyone just grabs a 1m long wire and boom its done and looks like shit

@SimpleTechvn 2 жыл бұрын

Thank you!

@bhgatsinghpundkar8791 3 жыл бұрын

Super se bhi upar Excellent friend

@gerardlesenechal7599 4 ай бұрын

J’apprécie beaucoup ces petits montages

@ETVNicaragua 2 жыл бұрын

Hand Wire assembly.. is the best to learn electronics.

@king000775 2 жыл бұрын

Nice, it reminds me 1990s. great video

@zakiservis211 2 жыл бұрын

Tutorial videonya sangat bagus untuk pembelajaran pemula kakak, terimakasih ilmunya untuk praktek sendiri dirumah🙏

@SimpleTechvn 2 жыл бұрын

Thank you!

@alexkirlian Жыл бұрын

Gosto de usar um diodo na entrada e um capacitor com um resistor em paralelo, ligados ao pino 5 do LM3914. Uma outra boa opção também é usar o LN3915 que é logaritmo e o 3914 linear.

@sangeethpn5551 2 жыл бұрын

When circuit become an ART

@mmom6056 2 жыл бұрын

Smart circuit good job.

@oliverbroad4433 2 жыл бұрын

Can you even buy that IC now? The LM3914 appears to be available but only in square PLCC package. Incidentally in my opinion it is worth adding some kind of rectifier/smoothing circuit to convert the audio to DC, feeding audio direct to the chip produced a mushy blured bar as it tried to replicate the actual waveform, but with it smoothed the lower LEDs would light properly making a more satisfying column of light. Also I've seen a crazy design using 10 triacs to control 10 lightbulbs.

@SimpleTechvn 2 жыл бұрын

Thank you for your attention. Did you mean convert the audio signal to DC to have a variable voltage, make an audio indicator by varying the brightness of the LED. It's a great idea, in fact there is an app like that! (Sorry, I use translator)

@oliverbroad4433 2 жыл бұрын

@@SimpleTechvn Well we initially built our bargraph circuit using the suggested circuit and found that although it was a bargraph the column of lit LEDS sort of faded out at the top. As far as I'm aware that is what happens when you feed audio in directly, the LEDs flash at the audio frequency, on less than 50% of the time and effectively pulse-width-modulating them rather than cleanly switching them. I'm suprised you didn't see odd shutter effects when recording the video, your one looks remarkably good. We took the bargraph circuit we had and added a peak detector to rectify the audio. With peak detection the bar display really looked like it was going up and down and not just fading in and out. The resulting bar looked more "solid". I can't remember which peak detector we used, probably the simplest op-amp based one from the datasheet. Then we adapted the circuit to run well from 15V which is another story.

@aldrinbiatonaldoza3743 2 жыл бұрын

Win.. kapatid...🇸🇦🇸🇦🇸🇦 full support on your channell...

@SimpleTechvn 2 жыл бұрын

Thank you friend !

@Przymekk 2 жыл бұрын

It's looking very satisfying

@WTEENG 2 жыл бұрын

한국에서는 이것을 재능낭비 라고 부릅니다. 회로에 대한 이해와 숙지, 납땜 결선에서 놀라고 갑니다.

@SimpleTechvn 2 жыл бұрын

Thank you friend!

@m.rm.ktimir8673 3 жыл бұрын

Hello unkle thanks for making a video with led

@SimpleTechvn 3 жыл бұрын

Thank you friend !

@leandropereira973 2 жыл бұрын

O melhor vídeo sobre esse ci!!!parabéns!!! Léo do Brasil!

@SimpleTechvn 2 жыл бұрын

Thank you!

@leandropereira973 2 жыл бұрын

Posso usar esse esquema para o lm3914?

@SimpleTechvn 2 жыл бұрын

@@leandropereira973 Hi friend, you can replace by LM3914 or LM3916!

@KT315A Жыл бұрын

Я собирал такую игрушку, мне не понравилось, нет чувствительности, не хватает умиления, надо делать предварительный усилитель, а то, что собрал молодец👍👍👍👍👍👍👍👍

@KislyEmb 6 ай бұрын

Cắt móng tay của bạn! Họ trông thật khủng khiếp! Như một mớ hỗn độn!

@hatipkapcak233 2 жыл бұрын

That's look like a magic! Amazing 👏😄

@himeshwithana1108 2 жыл бұрын

really cool and thanks for the video🤩❤

@SimpleTechvn 2 жыл бұрын

Thank you friend!

@2150dalek 2 жыл бұрын

I need to apply this for a 12v voltage level indicator.

@cristianorodrigues4261 2 жыл бұрын

Show de conhecimento 👏👏

@3rutu5 2 жыл бұрын

Pretty cool, I was going to buy one

@k99i 2 жыл бұрын

Beautifully done

@HappyHermitt 2 жыл бұрын

I looooove these free form circuits. Is there somewhere online that I can find more of these projects?

@scottsrcshop Жыл бұрын

i wish i understood electronics more id love to add a similar feature to my lowrider rc car project on my page. its my first time using arduino.

@AfzaalWardag 2 жыл бұрын

That's awesome share Subscribed

@Mediavidero 3 жыл бұрын

Satisfactory, close to ASMR, hahah. Good job !

@elikomariyah3660 3 жыл бұрын

@alisemerci7150 2 жыл бұрын

Nice VO metre..

@brutusmuerto 2 жыл бұрын

Beautiful! Thank you!

@mjkdap1278 3 жыл бұрын

This idea is amazing 🤩 thank you

@SuperSatturno 10 ай бұрын

Simply amazing electronics ☝️😃☝️

@user-el7jq9fw7v Жыл бұрын

навесной монтаж это красиво)

@matmuratabatov6603 2 жыл бұрын

четки схема,спасибо брать.

@ahmetavc6891 2 жыл бұрын

How does leds not burn at 9v

@nihalkumar2521 2 жыл бұрын

Nice Work 👍

@albertbarckhoff226 2 жыл бұрын

Nice work!

@danz409 2 жыл бұрын

now build like 12 of them and put different frequency filters on each one for a DIY visualizer :D

@carbilicon 3 жыл бұрын

Nice design.

@nela_tech 3 жыл бұрын

Wow this is wonderful

@thevalathathayalan8577 3 жыл бұрын

I Like This.

@peace7482 2 жыл бұрын

I like how oldschool it is

@Bianchi77 2 жыл бұрын

Cool video, thanks :)

@wijayacanel4062 Жыл бұрын

Ilmu bermanfaat hasil nya mantap👍

@tonyomelon3927 3 жыл бұрын

Ayooo broo keep goinggg you'll be successful in your talent💗 that's mind blowing haha I will do that to because of you

@Bravo141-6 Жыл бұрын

This is so beautiful

@SimpleTechvn Жыл бұрын

Thank you!

@aleixbusquets 2 жыл бұрын

Nice!! 20led project soon?? :)

@amiya19277 3 жыл бұрын

Nice Work.

@decem_unosquattro9538 3 жыл бұрын

Work of art !😂👍🏻🤔

@SimpleTechvn 3 жыл бұрын

Thank you friend !

@decem_unosquattro9538 3 жыл бұрын

@@SimpleTechvn Your welcome.😀

@famfitic8798 3 жыл бұрын

Wow! Im litterally going to make this!!

@thetypingape2073 2 жыл бұрын

This is wonderful.

@motiranjanpradhan8959 2 жыл бұрын

please make a video for water level indicator

@girlieanderson7964 2 жыл бұрын

great skills

2 жыл бұрын

Your video was very good, congratulations! Just out of curiosity, were you copyright claimed when using this song?

@SimpleTechvn 2 жыл бұрын

Thanks for your attention. The songs I use are all from the YTB music library, you can see its name in the description!

@naturix8446 Жыл бұрын

Sehr gut gezeigt !

@elyass.k.n5994 2 жыл бұрын

It was great 👍👍👍thanks

@todofutbol4056 2 жыл бұрын

Excelente 👏🏻

@SimpleTechvn 2 жыл бұрын

Thank friend!

@khoa-ursidae 2 жыл бұрын

Từng làm cái mạch giống thế này cơ mà cách ứng dụng hơi khác

@someassonline 2 жыл бұрын

This is great!

@luisinistrosa4399 2 жыл бұрын

Congratulaciones gracias excelente video

@henmich 2 жыл бұрын

I love these skeleton circuits...

@Pikachu.1412 2 жыл бұрын

😲...I like this!

@noushadhasan9975 2 жыл бұрын

thats awesome

@SimpleTechvn 2 жыл бұрын

Thank you!

@WilliamLDeRieuxIV 2 жыл бұрын

next circuit....a filter for that speaker.