Why does this not work

Reset pin is open and needs defined level. Put it to Vcc 9V. Current limiting resistor 270Ohm for your LED is also in real a must. And in simulation you need to slow it a bit to 100ms/s. Hope this helps

Open browser. Type "Wikipedia". In Wikipedia type "555 Timer" or "NE555".

Or in EveryCircuit type "555 timer example".

I believe I've copied the youtube video. How come it worked there and not in this simulation?

Hurz, in particular, the reset pin is not connected in the video

Maybe not connected, and which exact 555 did they used? In case of an CMOS version for example you must apply a reset voltage. In case of bipolar its not needed. Anyway, why not just apply 9V, because of a youtube video?

I get "Cannot find solution" when connecting RES to 9v

They're using an LM555 according to the video comments

Because you don't listen what I told you instead you watch videos?

Hurz, the question was clear: why does it work in the video and not in Easy Circuit. Answers should allow the reader to quote, "The reason it works in the video and not in Easy Circuit is [insert quote from given answers]" I suspect the answer is "there are different types of 555"

bagian ctrl harus diberi capasitor dan ukuran harus disesuaikan dengan sumber arus. lalu atur juga setiap komponen besaran yang digunakan dan sesuai sumber arus.

Darren- for whatever reason, this circuit in this sandbox is bugged-out. Defunct. Toss it, rebuild it following hurz's suggestions about the timeframe and current limiter for the LED. Most important, tie reset pin to VCC. So what if it doesn't show it in the video! I watched it and that guy is no guru or anything lol. Wether it needs it or not in real life, EC wants it, so just do it. And actually, from what I've read, (in vastly more detailed tutorials than your video) is that it is good practice not to let pin4 float. If you don't need it for anything else, tie it high..

So yeah, trash this one and rebuild it- follow our instructions and it will work just fine!.. =^)

I dont care any crap internet video, which might be a fake anyway. I try to understand EC and try it in real myself. I think the way you do electronic is the wrong way! Read a 555 specification and give it a try with EC and in real. Find out whats different and why! Ask youtube for inspiration but not as absolut reference!

Connect pin 4 to power connect 470 resistor in series with led connect pin 5 to .01 u cap to gnd and wallah

Thanks all. You've now answered the question. Note the question wasn't "How do I get this to work", it was "Why doesn't this work referenced against a real life scenario" Hurz is right in "How to get this to work" if that was my question. But this posting was to elicit understanding of EC. Thanks all for contributing.

Connect the res to the battery then add a 200 resistor at the bottom of the led and on the other side of the resistor connect it to ground

Darren, I see what you're saying, but try to understand something- something that hurz already answered as well (in his own way: indirectly)- there's only one place I know to raise your hand and ask a question, and expect to get a direct answer, that's a classroom. EC isn't a classroom. I'm not saying that to be a jerk, but at the heart and soul of an engineer's study into electronics, is self-discovery. Know what I mean? You don't seem like a numbskull to me- you ask good questions. The thing is, most of us non-numbskulls already have the answers to our own questions- we just haven't asked the right way...

I've bookmarked this circuit though, and I'll check back on it. I've noticed some of your other questions, on some other users circuits- I'm down to help ya where I can, but no one really wants to right an essay, ya know? And trust me, there are many things that you'll be much more satisfied if you happen upon the answer yourself. That "Ah-ha!" moment is a beautiful thing, and I wouldn't wanna rob you of that. It's the whole "lead a horse to water..." thing.

Cheers Sine-eyed. Yeah i seem to have a tinkering head on me this year: In non-sim stuff I've got my Raspberry Pi, Ciseco radio add-on, and their Arduino with radio add - on. Then there's "Baked Pi" from Cambridge Uni where you can actually write assembler to turn LEDs on and off, etc. And EveryCircuit is useful as I can tinker on the train as I discover more and more about the subtleties. But it got me thinking when I copied some random circuit into EC and it didn't behave as it did in real life that made me wonder about EC, hence this post. I've a bunch of "black box" circuits in private in EC as I endeavour to figure out how EC's working. All because they opened an electronics outlet near me - it's like setting up Toys R Us near a kid :)

Heh, sounds like you've got a big appetite! We'll, EC has it's quirks and they're a bit more difficult to pin down as a beginner. I speak from experience- I was very new to electronics when I got the app. But, quirky or not this program has helped me immensely. You'll get the hang of it, and you can learn a lot just by watching the public circuits posted each day. Listen to what people are saying- it'll definitely raise questions, there's always more questions, but with practice you'll get better at finding the answers!..