I don't know whether this is possible or not. I'm just trying to make a project regarding circuts in school. If it is possible, then please try to explain it. If it isnt, I'll move on to another idea I have. Thanks! (also I haven't bought any materials yet, I'm planning on buying them once I have the electrical circut plan ready. sorry if my english is a bit bad, its not my first language.)

 

Welcome to AAC!
Passing excessive current through the LED will cause it to flash once, while it is dying .
I suspect you didn't mean that, though. What you want is most likely a monostable circuit. Google will show you lots of those.
What will trigger the LED to flash?
What is the LED specification?
What is the power source?

 

Flash once when?

 

I don't know whether this is possible or not. I'm just trying to make a project regarding circuts in school. If it is possible, then please try to explain it. If it isnt, I'll move on to another idea I have. Thanks! (also I haven't bought any materials yet, I'm planning on buying them once I have the electrical circut plan ready. sorry if my english is a bit bad, its not my first language.)

Okay, so you have the germ of an idea and now you need to flesh it out.

What is meant by "flash" and what is meant by "once"?

These aren't flippant responses to your question -- there are lots of different ways to interpret them even if we are trying to infer what you likely meant.

When is this LED supposed to flash? Presumably you don't mean that it should flash one time when the circuit is constructed and then never ever flash again. More likely, you want it to flash in response to some event, such as someone pressing a button. But this is where different interpretations can come into play. Should it flash just the first time the button is pressed and then not flash on subsequent presses until power is removed and reapplied? Or should it flash each time the button is pressed?

And what constitutes a flash? On for one second? On for 1/100 of a second? Does "flash" mean "super bright", like a camera flash?

 

Okay, so you have the germ of an idea and now you need to flesh it out.

What is meant by "flash" and what is meant by "once"?

These aren't flippant responses to your question -- there are lots of different ways to interpret them even if we are trying to infer what you likely meant.

When is this LED supposed to flash? Presumably you don't mean that it should flash one time when the circuit is constructed and then never ever flash again. More likely, you want it to flash in response to some event, such as someone pressing a button. But this is where different interpretations can come into play. Should it flash just the first time the button is pressed and then not flash on subsequent presses until power is removed and reapplied? Or should it flash each time the button is pressed?

And what constitutes a flash? On for one second? On for 1/100 of a second? Does "flash" mean "super bright", like a camera flash?

Each time the button is pressed, for a second it alright.

 

It sounds like a job for a 555 as a monostable:

 

You can do it with a handful of resistors and a capacitor ... You will need to experiment with different values to get the desired result, but here is a starter circuit... https://tinyurl.com/2bn3t9va

 

Each time the button is pressed, for a second it alright.

Okay. There are still some fine details that might need to be addressed (such as what should happen if the button is pressed again while the LED is still on from the last press), but this gets us to a point where we can start playing with ideas for solutions and we can deal with the fine details if and when they become an issue.

Probably the next step is to decide what kind of solution you are wanting to explore. Three avenues come to mind, and there are plenty of others, too.

Do you want to build a circuit from really basic parts, such as resistors, capacitor, and transistors?

Do you want to build a circuit using fairly small building blocks, such as the simple, yet versatile 555 timer IC?

Do you want to build a circuit using some kind of programmable logic, such as a simple and cheap microcontoller?

Each of these has pros and cons and none of them are either right or wrong. It depends on what you are trying to get out of this project (or what constraints you have to work within, if this is any kind of class assignment).

 

Okay. There are still some fine details that might need to be addressed (such as what should happen if the button is pressed again while the LED is still on from the last press), but this gets us to a point where we can start playing with ideas for solutions and we can deal with the fine details if and when they become an issue.

Probably the next step is to decide what kind of solution you are wanting to explore. Three avenues come to mind, and there are plenty of others, too.

Do you want to build a circuit from really basic parts, such as resistors, capacitor, and transistors?

Do you want to build a circuit using fairly small building blocks, such as the simple, yet versatile 555 timer IC?

Do you want to build a circuit using some kind of programmable logic, such as a simple and cheap microcontoller?

Each of these has pros and cons and none of them are either right or wrong. It depends on what you are trying to get out of this project (or what constraints you have to work within, if this is any kind of class assignment).

Maybe with basic parts, but anything is really just fine. I have until October 12 for this project, so a lot of time. If the LED is still on from the last press, it should wait for it to turn off again. Thanks btw

 

I have until October 12 for this project

Is this a school/college project?

 

Is this a school/college project?

Yes it is