ACT LED intensity

[VooDoO-R]

[drgeoff]

If you have been set an assignment that is beyond you, you should seek advice from those who are there to teach you. That is the only way they realise that their methods are not having the required outcomes.

[VooDoO-R]

If you have been set an assignment that is beyond you, you should seek advice from those who are there to teach you. That is the only way they realise that their methods are not having the required outcomes.

Thanks for the answer but it did not help

[drgeoff]

If you have been set an assignment that is beyond you, you should seek advice from those who are there to teach you. That is the only way they realise that their methods are not having the required outcomes.

Thanks for the answer but it did not help

Apart from asking here, what have you done and how much time have you actually expended in attempting to fulfill your assignment?

[VooDoO-R]

[qu

[drgeoff]

Ever heard of PWM?

[VooDoO-R]

[quo

[rpdom]

How about software controlled PWM?

[VooDoO-R]

How about software controlled PWM?

how ??

[drgeoff]

Ever heard of PWM?

Yes a Pulse-Width Modulation which you can control the brightness of an LED which is connected using GPIO pins on an external board

You already said you can turn the ACT LED on and off. Either you don't understand the principles of PWM or you are very slow at putting two and two together.

[VooDoO-R]

[quote=

[drgeoff]

Yes a Pulse-Width Modulation which you can control the brightness of an LED which is connected using GPIO pins on an external board

You already said you can turn the ACT LED on and off. Either you don't understand the principles of PWM or you are very slow at putting two and two together.

i do understand the principle of PWM but in this case the LED can only take a logical value either "1" or "0"

That statement demonstrates that you do not understand PWM.

[VooDoO-R]

[qu

[drgeoff]

You have been given enough hints.

Do some reading up on PWM in general (not RPi specific) and when you understand it, the penny should drop. If it does not, perhaps you should consider changing faculty.

[B.Goode]

can you explain how to control the LED intensity

Your analysis that the LED can only be On or Off is correct.

A solution, if there is one, will have to accommodate that limitation.

Either you have been set an impossible task, or some thinking 'outside the box' is called for.

[VooDoO-R]

[quote

[jbudd]

Matlab lets you turn the LED on and off? How fast? What if you turn it on and off really fast? Do you see an application for pulse width modulation here?

perhaps you can be useful by answering the question right, rather than showing off, i guess i asked to learn and find a solution, i'm not here to brag about myself.
so thanks for nothing drfkoff

How old are you?

[davidcoton]

perhaps you can be useful by answering the question right, rather than showing off, i guess i asked to learn and find a solution, i'm not here to brag about myself.
so thanks for nothing drfkoff

It is not a good idea to insult those who are trying to help you learn. Giving you a complete answer will not help you learn, and might be getting you undeserved academic awards.

As you have been told, you need to go and research PWM. Then see how it applies to your problem. Come back and ask again (politely) when you get stuck, but don't expect people to do your project for you.

[VooDoO-R]

[quot

[jbudd]

now that is an answer, thank you very much man, didn't think about it that way

You are welcome

and about the how old am i, maybe he should learn how to answer a question first instead of giving puzzles

I remember being surprised at the change from school teachers giving the answers to university lecturers only giving the questions. It's because they want to develop your problem solving skills.

In my humble opinion it's pretty shabby when someone tries to help you and you respond with insults.