Electronic Basics #26: 555 Timer IC

[@PeterCCamilleri]

The 555 has been my favorite classic IC for over 20 years. I really enjoyed this video and learned some new things about this awesome, long lived chip.

[@kritikagupta8585]

pls suggest if there is really any way to generate good square wave using NE555/NA555 IC? as I only have that available with me

[@bizarro_bread]

@@kritikagupta8585he showed you how to do it in the video with the astable cmos 555 timer 😭

[@rtesimpson]

you have very neat handwriting Scott

[@LuaTech]

He does

[@1mouseman]

Yeah, and English isn’t even his first language

[@Nardax]

i thougth i knew 555s, now im looking at the ceiling thinking wtf am i doing with my life

[@dutchman55]

Glad I’m not the only one

[@abhijithanilkumar4959]

kzbin.info/www/bejne/e3jQo5iMhpKshK8 This is the best explanation of 555 timer IC I found

[@kashafhossain2040]

You aren't the only one mate.

[@DanShlemon]

I've been using 555 with no idea why we connected it in such configurations .. when u got to the deeper level .. everything is clearer .. thanks boss

[@joeabad5908]

Your channel is top notch. Gives guidance to a beginner but have enough details if one wants a geeky deep dive.

[@bastienguilbaud5768]

Your videos are amazing ! So much information, you're going straight to the point without any detours. The information is tightly packed and the whole subject is covered quickly and efficiently. If looking for one specific information, I can watch 4 or 5 videos in what feels like no time and I'm very likely to find what I'm looking for. As an other non native english speaker (i'm french) I am very happy to be able to use english as a way to communicate with somebody that eager to make the world a smarter place.

[@benjammin2859]

Another great video, Great Scott! My advice is to keep up your high tempo, despite the complaints that you're going too fast. I'm a beginner, and you're "too quick" for me too, but that's good motivation to learn more so I can eventually keep up... and your videos are never boring! In all the language classes I've taken there is always a student who complains the teacher is speaking too quickly. One teacher responded "No. You're listening too slowly." That's right on the money!

[@m3rdpwr]

The 555 was my favorite chip to use in high school back in the 80s. Boy I feel old.

[@stevewinwood3674]

i was just telling someone i am about 3 decades late with this hobby of making circuits with a 555

[@rafatomczyk3622]

Best 555 timer explenation video that i ever seen. Thanks from Poland for your work.

[@MrBiky]

Am I the only 1 watching and not understanding almost anything, but still likes the video anyway?

[@MrBiky]

***** Well, that's unfortunate... nobody else but me likes Scott's video...

[@sr-de5nz]

You're not alone sir...

[@dutchman55]

Not at all

[@sanskartewatia4320]

watch codenmore's video, its amazing

[@npatrcevic]

He did hurry it up a bit...

[@jasond.valentine5931]

Im affraid that for half fo us this is way too hard to catch on, all too quick D:

[@jasond.valentine5931]

Did that, as pathetic as it may sound to someone who actualy understands electronics, but there are to many elements unkown to me. I'd need to sotp the vid, go investigate what is that flipflop for instance, then come back and lsiten to the rest of it.. Ijm just too dumb.

[@jasond.valentine5931]

iceberg789 that's right xD 14 hours of study compressed in only one video. for me at least xD great scot is indeed great xD have a nice day!

[@starcitizenmodding4436]

I agree with both of you. that is the beauty of youtube and having so many people talk about the same thing. you can jump in the deep end and not understand lots of things and you can go and listen to a noob which both are very usefull, when your goal is just to learn. just use your intelligence. its like if you speak to the top brain surgeon you probably wont understand hardy anything but talk to the beginner he will probably spend 10 mins talking about keeping tools clean. where the pro never mentioned it once but its fundamental. But use ur intelligence and you can learn key points very fast.

[@starcitizenmodding4436]

it would be unfair to ask the top brain surgeon to cover everything from the most basic and you would miss out on the cool stuff he really knows.

[@ShaithMaster]

For me it makes sense but I'm already in school for electronics. I think this is who it's primarily for.

[@BowersElectronics]

gotta love whenever I wanna do a project with a specific chip and cant grasp it you come in and clear it all up. keep up the great content!

[@Jrez]

The 555 changed my life. First IC I ever worked with in electronics class in high school.

[@kippie80]

the best, most complete, and consise description of 555 timmer! haden't noticed different versions of timmer either. thank-you.

[@worldentropy]

Not like it .. love it. Been far too long since I've seen someone explain basic electronics so concisely and clearly amongst all the noisemakers. Here's a thumbs up from one professional to another.

[@garbo8962]

Great versatile chip that's been around over 40 years. Thanks for the easy to follow informative u tube vidios.

[@AiurIkiza]

You're one of the most interesting youtubers ever!

[@greatscottlab]

Thanks

[@FlyingShotsman]

I didn't think there was much point in *another* video on the 555, but yours is definitely worthwhile. Well done!

[@callmeaneo-naziifuckingdar405]

my favorite youtuber looking at my favorite IC, its a happy day

[@sharadvaishnav9611]

You do insane practical experiments. I am afraid while watching your wiring connections, setting up electronic components. Your intellect is really high. 👍🏻🇮🇳

[@arv1ndgr]

This is how Electronics must be thought! I'm a Electronics Graduate yet never knew how 555 came. Also many times I had used the formula 1/3Vcc or 2/3Vcc and am able to relate due to your video.., Great effort and thanks for that...

[@saadnukeeng1981]

Best 555 video on KZbin! Thanks GreatScott.

[@bradfordmcadams9833]

Your drawings are immaculate!!! I love your channel. I am an engineer and I love your projects and breakdowns of circuits.

[@szafran1543]

Simple and super useful! Thanks! Nice that you draw internal "logic" scheme and upon that explained how 555 works! Like your "way of thinkg" and step by step explanation, where one thing is consequence of another. Great job!

[@MRGCProductions20996]

Finally, an actual video explaining what is the 555 like inside, thanks a lot

[@kunaljulka5604]

It's my first comment on any youtube video and I just love watching you video I just started watching your video from last few week in starting I use to watch any random video of your then it just blood up my mind because I am not from technical background but I like it so I watched all your 26 electronic basic video and it helped me a bit knowing what you are doing and after seeing your video I too want to make things for my self and I will start from making a bench top power supply from atx and thanks for inspiring me

[@enriquegabriel7708]

I don't understand anything. Your explanation was the best I've seen so far all over KZbin and College, but it reflects a deep lack of electronic technical foundation in me haha. However, you deserve thumbs up. Congratulations my friend.

[@fieldsofomagh]

Can't believe the 555 is still around. Nice intro to the inner workings.

[@BertGrink]

Given how verstaile the 555 is, i doubt it will ever go away. I've even seen it used as a Class-D amplifier!

[@karpatimen983]

Very good video!!! Congratulations from Bulgaria!!I watch your vids from about a year and Im pretty impressed!!!I hope you never stop!!

[@greatscottlab]

Thanks mate :-)

[@alexandrosanastasiou1964]

This has to be one of the best electronics videos I've ever seen. My sincere thanks to you

[@rubabmubarrat]

my first greatscott video from 2016 😄

[@nockieboy]

Can't remember how I came across your channel, but watching your videos has rekindled my childhood interest in electronics! Have always wanted an oscilloscope - messing around with 555's give me a reason to get one! ;) Edit: Subbed. :)

[@MrShivamgautam1]

I wish you would have posted this video a day earlier. I had a 555 question in my exam 😑😅

[@MrShivamgautam1]

iceberg789 lol. I hope not. Results aren't announced yet. 😅

[@TheFlaminGuy]

how to make HAND GRENADE at home............WATCH ON MY CHANNEL

[@inspireandinnovative6892]

Better hope the grenade fuse is made with a 555 timer with a 10 second delay

[@bitemyshinymetalass7393]

subcribe to muh channil and i'll post a video about how to build an anti-matter bomb.

[@bitemyshinymetalass7393]

tested. it works i'm commenting from hell right now. ...connnection here is shitty though iceberg789

[@EdwinNoorlander]

Funny how I always can learn from a 555. I really like your explanation with the 555 timer. A big thumbs up for you. Thanks

[@rdxdt]

What a coincidence i was messing arround with one NE555 just now. And this video helped me to solve a question, its like im asked a question and GreatScott! Created a video to reply. Thank you a lot for the video and keep up with the good work.

[@isbestlizard]

I LOVE THIS! it's going in my recipe book of very useful electronics chunks. EVERYBODY got time for a pwm generator!!

[@arunbiswash9665]

Hey bro, I am from India .I always looks for this day at 7 to 9 pm (Indian local time) for your videos. You explain every basics of electronics so nicely that I am going crazy for diy stuffs. Can you make more videos for us ? Thanks A Lots for your Videos. hats off bro !

[@greatscottlab]

I am happy that I can pull off one video every week. It is definitely not easy and producing more videos in one week is impossible for me. But feel free to support me through Patreon. Maybe I can hire an assistant one day.

[@arunbiswash9665]

I'll.....Waiting for next video :) Keep it up %$%

[@danstark462]

liked how you told us about the limitation of the 555 timer for PWM signal : marked at 6:14 time in the vid That was great info and problem solving.

[@alexportiiii6414]

Thank you so very much. Every one of your videos that I have watched has been helpful.

[@0xAsterisk]

Your Courses are really useful! love from algeria

[@nigelman9506]

Great Scott, that's the most absolutely fantastic explanation of my favourite IC, its so crystal clear now, thank you

[@tomaszw9657]

The topic is very old, but the explanations as usual are great. I especially love your hand-made diagrams that tell us how we should think about electronics, how it works in detail. Great job Congratulations

[@abhijithanilkumar4959]

Why old???

[@Joxman2k]

I believe that this is explained well and simply, but me small brain could not grasp most. I have bookmarked this video and will be back later when I understand more. Thanks Scott for the inspiring video :)

[@milkhbox]

As Per usual, Scott. Quality video and good explanation. Keep it up, sir. You've more than earned every sub.

[@igorsiekierka]

true

[@user-vs1du9tl2p]

Well, I feel you're better than most of the Electronics Engineer I've seen. Anyway, I will be starting BSc in Electronics Engineering very soon. Hope your videos will be helpful in the future as well. Thanks!!!

[@shorb2289]

Did you finish your degree?

[@gregorycain8566]

I highly appreciate the fundamentals lesson. I'm still so new to hobby electronics, it is nice to see where people with more knowledge throw in diodes and other components.

[@OpenLogicEFI]

I love you for this video.. you just gave me the answer to a problem I was trying to solve with my home automation system.. sincerely, thank you for all of your videos.

[@jonathaniaquinto1001]

excellent video. I"m learning and relearning a LOT with the Great Scott Videos. I share these with my work mates often. we work at FoMoCo. thank you Mr. Great Scott!!

[@leandermoalcarde8206]

Your are a good teacher, you deliver a good explanation

[@pratheeshkumar443]

what ??? You have made me completely understand a timmer IC unit in integrated circuits subject ....thank you so much...

[@Xenro66]

For once, I actually fully understand a GreatScott! video :D Edit: Not to say your videos are confusing, but you explained the 555 in such a fantastic way.

[@ayoitscat]

It was well explained, but it still went over my head. I have a lot to learn!

[@PrashantKumar-rx5rn]

thank you. your videos are always creative and informative.keep it up. By the way, i got to design Schmitt Trigger in my electronics lab last semester ,and your videos really helped me

[@magetaaaaaa]

Oh my god man, those hand drawn diagrams are so smooth!

[@charlottelondyn805]

I find that just using an Arduino board (or any micro-controller with PWM) is easier because 1; you don't need any extra components other than a potentiometer and the load and 2; I find writing a few lines of code easier than hooking up components in a way that I only somewhat (even after watching this great video and others) understand.

[@lamjeri]

There are applications when using an MC is a waste. Sometimes it just comes in handy to know how to create some simple circuits without programming anything.

[@norm1124]

Vielen Dank, die analogen Chips aind mir noch immer oft ein Rätsel ... die Namensgebung war eine sehr interessante News. Und ... sehr gute Zeichnungen!

[@vidanatural_oficial]

it was superb, every week we have a nice surprise here!! Thanks again.

[@greatscottlab]

You're welcome

[@vishalchavda3663]

U r Simply great man... Keep Doing for us like this.. may be many of us would not be able to support patron campaign.. as we also dont have such financial support nw but we gave our blessing to u...

[@whollymindless]

Beautifully clear diagrams and editing work.

[@mohitmaske7785]

thanks for this video!! tomorrow is my exam and i was in need of this!!

[@jaamacdagaale5145]

Your left hand write is like gold

[@baha6814]

Türkçe altyazı için çok teşekkürler. Thank you very much for Turkish translation and your effort, great!

[@Eapancotech]

I had watched this vidio 4 time and at my 4th attempt I finally got the idea 😅

[@danielpiotrowski1681]

Best 555 tutorial I've seen!

[@dalejones4186]

Great video. Just what new to electronics people need. Keep up the good work.

[@workethicrecords5901]

I never really got what the big deal was with 555 timers until I watched this video. that pulse wave looked so sick

[@hughh106]

Great vid,This is the first explanation video that didn't go to fast for stupid me.

[@GiBBO5700]

I built all these circuits 25 years ago! 555 stands the test of time. I wonder how many have actually been made

[@loptica62]

I'm just speachless..... amazing stuff!

[@enduser6957]

Definitely a work horse in the electronics world.

[@mistervoldemort7540]

Always good quality and frequent videos

[@zyspan]

I once met a guy in a pub and he asked me what my favorite IC was, -- Why would asked ? He said "well a love the 555" and I replied " a 556 and I'm nipping outside for a joint"

[@lloydprunier4415]

Perfect timing for me. I just started planning some experiments with a 555. Thanks !

[@Yomamura29]

Sir all of your video help me to my projects. and i learn all of this because of you than the school thanks

[@PrashantBatule]

Do you keep the hard copies (printed circuit diagrams that you use in videos, calculations that you do, etc) organised in a file of every project that you have done?

[@spacial2]

Brilliant. Nice simple explanation. From someone who understand the subject. Hint for those who found the video confusing. Electronics is easy, if you can count to two, you can understand it. It is made complicated by nerds who want to sound clever. Forget the crap, it's simple.

[@albertonovela3301]

well done great. i'm from Mozambique and i watch all you videos.

[@operitivo4635]

*explains all details* and now you know all the basics :D thanks for the excellent video!

[@ClericChris]

I'd really like a series of videos going over the top 10 ICs you consider most useful like the 555.

[@azyfloof]

Nice fundamentals lesson, Scott! :D

[@greatscottlab]

Thanks

[@_oliv6176]

GreatScott!

[@TommyBee456]

wtf?^^^^

[@hillelpoliszuk3154]

How is it important for this video?

[@pratik0706]

+GreatScott! Pls Make a video on inverter ( may be 5 level )

[@GurpreetSingh-jz3rx]

The best tutorial I could find for 555 timer!!

[@pepeperoslavov871]

thank u very much soon i have project to make stun gun with 555 in school so this will help me, keep making videos ur the best!

[@NNNILabs]

I've been dying for this since time began!

[@Amir-kz6yq]

Why did you connect the pot to the output pin in 07:00?

[@pyrojackson9001]

It is much easier to understand your videos with a reference book at my side

[@stephen898]

Really superb videos u r videos are amazing and u start all from scratch ....nice work man...keep it up.....

[@keithking1985]

Good to know about the c-mos version of the 555 for PWM circuits. P.s. one of my favourite channels,, always full of info...

[@schazimanselmx2654]

Thank you Scott, your videos are short and super clear. Keep making more. 🤝

[@RicardoPenders]

I see this all the time on KZbin that people say that the 555 is the most used chip of all, the strange thing about that is I never came across such a chip in any of the hardware that I took apart for recycling, I recently bought a few just to get familiar with the chip. Today I've got the blinking LED working for the first time, pretty neat but it can be done much easier with less components so I don't really see the advantage of it.

[@aidanwansbrough7495]

Really helpful! Thanks for taking the time to explain how the timer works so well in this video.

[@yomitadesse7290]

Amazing teaching. thank very much. you are intelligent teacher

[@damascenoalisson]

Awesome video! This is THE channel I was looking for all this time, thanks :D

[@legallow3931]

I haven't this slightest bit of knowledge about electronics but I watched your video and made a little synth off of what you taught. Posted a video showing it off if you'd like to see it.

[@jh3xgaming]

Glad to have my notif on :) Have fun watching your videos :)

[@Speeder84XL]

Nice! So it is possble to make a circuit with stable PWM frequency, using just one 555 - another trick is to use an external oscillator with set frequency and let it trigger the the 555 in monostable mode and use the control voltage pin to adjust duty cycle. For most applications it probably doesn't matter if frequency drifts a little. I have a 9 kW furnace that I control with the simple 2 diode circuit - at high duty cycles, the frequency drops a little, but that's just good because the transistor runs a little cooler during high load (switching losses goes down with frequency), while the ripple current is still low at around 50% duty cycles (where that is at it's at maximum)

[@jj74qformerlyjailbreak3]

One day I’ll be doing these vids. Thanks @Greatscott For Inspiration.

[@lamjeri]

I have a question about the last example of PWM signal. Considering the lower current capabilities of the TLC555 and the fact that we use a part of the current to charge the RC circuit, I guess it's only suitable to drive a high impedance circuit at its output, right? I tried assembling this circuit, sadly, as I am just starting out, I have limited amounts of components. When I use a 10K potentiometer (don't have any other atm.), a 104nF and a red LED at the output - with small resistor at the LED, nothing happens, which is probably because of the high difference in resistance between output path and charging path. - with a big resistor at the LED, adjusting the pot. changes brightness a little bit, but the LED's brightness is nothing to brag about to begin with. - when I disconect the LED and measure the voltage out -> gnd I can get about 0,5V - 4V depending in the position of the pot. Could this be because of little output current of the TLC555? I guess I really need an oscilloscope if I want to get any further into electronics.

[@Driv3r96]

I'm a complete beginner, but I thought the capacitor connected to ground at 2:38 would immediately discharge to ground? What am I missing?

[@abhijithanilkumar4959]

Its charged the opposite way mate So its negative is in ground side and positive the other The capacitor will discharge through the resistor

[@Driv3r96]

@@abhijithanilkumar4959 Thank you friend.

[@Driv3r96]

@@abhijithanilkumar4959 Would it work with a non polarized capacitor?

[@Taran72]

Great video! yes you speak fast but I can always pause and replay the parts I didn't understand the first time. :) :)

[@berndlberg1]

Einzigartig gut erklärt und dargestellt!

[@mahmoudkortas]

Greate video from tunisia