Thank You!
I am still at the beginning to learn the basics. I am afraid this all makes sense to me in few years. I assumed there must be a simple way to do this. However, i will just simple use the button to switch on the led for a specific time without the switch off function.
BTW: The real application is to switch on a kinetic artwork by pressing a button. To save live time of the work, it needs to be switch off automatically after 5min. It would be a nice add to be a able to switch it off before the 5min ends. This, with the same Button.
I do hope at one time arduino get's just a good tool which is working for me :~
pe