I've been staring at 555 timers all day, and this has been the most helpful description of how they work. Thank you!

"I've been staring at 555 timers all day, and this has been the most helpful description of how they work. Thank you!" - Comment from below. Same for me :)

The other 555 timers make one or two good points before they lose me, so I watch many to figure this chip out. Skinny's video is the most understandable out there, step by step I learned more from his than any other. Keep up the good work!

Phenomenal. The way you stepped through the logical process made it make perfect sense. I went to trade school for electronics and no one could adequately walk the class through just what made the ol triple nickel tick, but I understand it now. You've earned a new subscriber.

Man, you're a great teacher. Loved it. Now I know the inner working, the general current flow and most importantly the connections. The formula is perfect and thanks for the last tip on making Rb a potentiometer to vary the output frequency. More from you will be very appreciated at any time.

One of the better 555 timer videos to explain it to someone with basic electronic experience. Well done!

thanks Skinny R&D! Having finished a tech school back in 1980, the 555 timer has been around for a while. Your explanation has been so-o-o-o much better than trying to decipher the data sheet!

AMAZING. This is the kind of step-by-step top-notch shit my University should be giving me for what I pay. This is real teaching, understanding, learning. Thank you very much, I must integrate every detail into my understanding of the topic or else I understand nothing at all, and you went through every piece of this circuit. Exactly what I was looking for. Thank you again I just felt a wave of relief because I know I can now complete this lab and I have learned something.

nice tutorial, I have watched a hundred 555 tutorials trying to get a grasp on how it works, well done. very helpful in explanation thanks.

It really is a pleasure when you're trying to learn something and you're in new territory and you find someone that can explain something in a clear and illuminating manner. Thank you.

just one thing to say to you.. "you r just awesome" i have not seen any tutorial as clear as this. Thank you so much

Hey guy, good job. I have watched about 6, 555 tutorials and was still clueless. Now I get it. Thanks so much.

This is way easier to understand in 'ordinary English' compared to any of the 'best tutorials' which assume people already know various electronic terms. Thanks

After trying tutorial after tutorial for hours this was incredibly helpful and my project finally works. Thanks, you definitely earned my sub

I followed this vid. in a deep mood to understand in detail about this wonderful chip and gained much from the class today ! many thanks ! good day .

Thank you so much. I've been stressing about my coursework all day and this finally cleared it up

Seriously that's the first time someone has explained a 555 to me in an understandable way. Thank you!

Best video explaining how the 555 works and how the components affects its function! Thank you.

Just found this little gem, absolutely brilliant description as to the understanding of how this timer works. Thumbs up and subscribed. THANK YOU.

I'm very impressive the way of your teaching. you are the best presenter of 555 among other KZfaq presenters. wish you good luck. hope more.

Crystal clear and what I've been missing in all the other videos. Thanks, Skinny R&D!

Best explanation of how a 555 works bar none, and I have been in electronics for many moons!

You are awesome, thanks for the clear detail! Best electronics tutorials that I have found on-line.

Awesome video, explained it far better than the supposed "best 555 timer on youtube" video... thanks for your staggered approach and giving the learner chance to take in the information. You would make an excellent lecturer.

Thanks, from a mecheng student having to throw together a timed pneumatic valve! This helped me finally put my breadboard to use.

Thanks for taking the time to educate me on any kind of chip I really enjoyed it and feel better about electronics.

This is the 555 tutorial I've been looking for, Thanks !

I am an Industrial Electrician student and found the video is excellent. It really helps to see the breakdown of the 555 internals.

Thank you man, your explanation is on point, The best 555 timer tutorial on KZfaq, you definitely should do more electronics tutorial videos like this one.

This explanation of 555 circuit is amazing. Congratulations .The other one on youtube who does perfectly explaining the mechanics of the electronic devices is Ben Eater.

I am at the second year of the university of applied science to piraeus at GREECE and i am study electronic engineer .Your video for 555 informed me very very well for the 555 !!!.....

Thank you! This is my first attempt at trying to understand the 555 chip. Because I'm not formally trained and/or schooled in this field, ( I've had an inexplicable fascination with microelectronics and the physics behind it for over 55 years... I just can't explain why...), I'm not fully understanding the tutorial. I must reiterate that this is because of my ignorance in this field and not due to any failure on your part to explain this chip. I'm sure that those who have a far better grasp of this topic will find this tutorial 100% understandable. I noted that my first point of confusion was when you kind of glanced by the Capacitor for pin 5 (around 5':30" on the video). I think I understood you to say that this pin should ALWAYS have a cap connected to it, (I believe that's the negative leg), but I don't see why it needs to be there if it's not going to close this, or any other circuit in this type of A-Standard mode 'clocking-timer' example. The second point is around the 8':50" spot in the video. You mentioned that when the Flip Flop = 0, then the Output Stage voltage will be high. That voltage would be approximately equal to 9v minus 1.7v, (or otherwise, 7.3 volts?). I'm not clear as to where you got the 1.7 volt figure. Is that some sort of formula constant? (Kind of like the 63.2 figure when measuring a sine wave from an oscilloscope grid?). And finally, the third point where you reference the Frequency to equal 1.44 / (Ra + 2Rb) x C. Where did the 1.44 figure come from? I understand this video was posted some time ago and don't really expect a reply, but I'm just taking a shot at it and maybe you'll find my comment at some point in time. Thanks again for a great tutorial and a very important topic to me. Rich

This is probably the best 555 timer explaination I've seen.

certainly the best explanations I've ever got.great job!!

thank you for this great lesson. Realy made it clear what is happening and why. I alway enjoy in depth tutorials like that. Because to really learn somehting you gotta spend some time on it.

this is the best and most informative video I've seen yet. I'm a beginner and it helped tremendously in my understanding of thes ic. thanks!

Your the one that made me understand the 555. Merci beaucoup. just a green horn amateur newbie in electronics but I like to know how things work if i'am using them. I will soon promote my self to the IR2153 and hope to meet some one with your talent on my way.

The best explanation i have ever got here. Please make more videos on electronics.

p.s. this is the best so far. and I have watched lots of 555 videos. I learned the most from your video than any other. thank you so much for making this video!

Best 555 tutorial on KZfaq..I've ever seen..!! Subscribing..!

Not sure how I stumbled across this, but very interesting and well explained. I've been using 555's for various projects for years, still learned a bit from this.

That was brilliant... I wonder what are the calculations involved in finding the frequency of the output signal

You made that so simple to understand. Well done!

Easy, simple and clear concept. Thank you, sir.

Thanks so much man. Just started my electrical engineering degree and they threw a 555 at us in the third week. You made it very clear compared to many other tutorials I've seen.

This was such a good explanation, Thank you!

This is the most useful explanaton of a 555 and it helped me with my coursework. Also great that this was posted on my birthday 16/08 ;)

One of the greatest electronics videos I have ever watched

Brilliant tutorial. You have good teaching skills and is delivered at an interesting pace. Well done. Best explanation I have heard. You got another sub.

One of, hte easiest, well explained video about 555 timers of all time ! THANKS a LOT !

thank you so much for this video it has all the details that I need for my lab experiment tomorrow

Thanks a lot! The output of the flipflop is connected to a power amplifier whose output is always inverted. That's why the output taken through terminal 3 is always inverted.

best explanation of 555 on youtube..!!! Well Done..!!!!!!

That was awesome! Loved the step by step detail. You earned a sub sir!

At first thanks for this good video and i want to add notes : 1. we can control the time of on and off of the led by :Ton =.693*(Ra+Rb)*c , Toff=.693*Rb*c 2. the output of flip-flop is connected to the pin 3 not on Transistor and the complement of the output of f-f is connected to the transistor. 3.Trigger pin is responsible to make set not rest , and the Threshold is responsible for rest not for set . :)

That was excellent and will definitely help me teach in electronics student when she goes to university in September I am very grateful for your clarity.

That was explained very well. Thank you for the help.

it is so nice of you to explain everything....

Thanks a lot man, helped me on my Theses and was just the right moment. keep them coming like that

very good in-depth explanation of the 555...

Outstanding demo/explanation!!! I think what would help a ton is if you moved this circuit onto a breadboard so we can actually see the electronic pieces and their connections as you go through your wonderfully detailed explanation.

Thank you so much for your concise and free information. You are a positive force in the world brother.

Awesome, extremely detailed description of the ICs function. Thank you

that was great, I built several 555 projects and kept searching on youtube to get a explanation on on how it works and all I would get is either people just hooking it up and saying "this is how it works " or some engineer with a way over complicated explanation of theory and formula tables. Thanks for making it simple, now I get it to the point I can even modify in a different circuit and drive a mosfet with it because I "get it"...

By far, the best, and I mean the best explanation yet

really best tutorial ever dude ,i loved it keep up the good work .

Thank you for this video! It has really helped. Good explanations. Understandable and clear. Womderful! Enjoy your day! Rolf

Simple and well explained, great video thanks. Worth to subscribe

Glad to watch again.

Thank you so much. Very good tutorial and easy to understand.

Thank you very much for the tutorial. We are having a project for a stop sign in my industrial tech class that uses a 555.

jason and future jason , both of you guys did a great job !!! . Great explanation

Absolutely awesome explanation!

Amazing video I finally understand kind of how they work what value capacitors would I need. I like how you showed the inside circuit of the IC chip really helps to understand. How would you control the time of how long the LED stays on and not just blinks so say it turns on for 2 sec then off for 1 sec and so on

Cheers mate. This is a great explanation. Very helpful.

BEST EXPLANATION!!!!! THANK YOU SO MUCH!!!

Saw a couple of 555 timer ic working video's and this seems to be the best one out there. sorry great scott😅

Awesome video, helps me understand what I am learning in school. Thank you!

Nice explanation, thanks for your efforts !

awesome video... great work and keep posting such videos!!!

This was awesome and very informative. Thanks!

excellent video, most informative i've seen

This is a great video. Really good explanation. TY.

Go on, Skinny! You make a great job!!!

very well made video!! really made me understood well in clear way how basically this timer works, Thanks!

It was the best 555 timer lecture ever. !!!

Great explanation! Loved it!

Very clear tutorial, Thanks a lot!!

Thank you for the tutorial, very useful.

Your channel deserves about 2 million subs, i think... THAT IS GOOD

Nice tutorial video and interesting project !

thanks for such an amazing video, please make more videos on electronics topics such as opAmp, oscillator etc. I will share this video with my friend and tell them to subscribe you..

Excellent presentation. It was very helpfull. Thanks!

I'm new at this and your video was very informative, thanks!

Best way of teaching about 555 👍

Great 555 explanation for sure!!!

Such goodness. Damn i actually understood every single part. You are a Amazing teacher! Subbed.

Amazing tutorial thank you so much for your explanation, it's crystal clear !

That video just made the operation of the 555 'Click' for me, thanks!

i learn more seeing this. thanks!