I did Google it. Build the damn stuff then it doesn't work. The moment you solder it to Vero board you have to increase the voltage for it to work.
I don't need LMGTFY but assistance on a circuit that actually works. Thats why I was asking the question in the first place. I know how Google works.
This will work fine over a range of voltages, just with some variation in LED brightness.
It should have a reasonable size cap across the power connections (10uF .. 100uF) and also really have a 0.1uF from pin 5 to ground (0V), though in practice it probably won't make much difference.
That's certainly NOT the case - if that's what happening, you're doing something seriously wrong - and you really need to find out what it is, or nothing is likely to ever work for you.
This will work fine over a range of voltages, just with some variation in LED brightness.
It should have a reasonable size cap across the power connections (10uF .. 100uF) and also really have a 0.1uF from pin 5 to ground (0V), though in practice it probably won't make much difference.
Post a link to the circuit, and post a picture of how you've built it - just saying it "doesn't work" isn't of any help - there are non-working circuits out there, but it's more likely built wrongly.
If the timing of the "Flasher" is NOT critical. A self flashing LED may be your simplest solution. Just add a proper current limiting resistor and you are done.
If you are having trouble with soldered circuits not functioning, you are probably overheating the components. I have toasted many a transistor and 555 back in the day when I first started tinkering using an iron that was WAAAY to hot.
From your question, it's unknown if you want to flash a few mA for a 5mm LED, or hundreds of mA for a 1w or even 3w LED – all of which are a "single Led". Also unknown is the flash rate desired, and whether it needs to be adjustable or a precise rate. Plus, nobody knows what your skill level is, or, as it turns out, what you've already tried.
Since I've had Covid, my ESP powers are not so good. I could have taken time (much more time than it took you to write your question) to draw up a schematic, but it probably wouldn't have met some unspecified criterion, in which case you'd be angrier than you are already, and I'd be unhappy I wasted my time trying to help.
A few more details in your question, and posting a schematic and some pictures of what you've tried who have helped the people who are trying to help help you.