Quote Originally Posted by xobx View Post
When you click the button a timer starts and when you push it again it stops, and after that the LED blinks with "your time"..
As for this, there are an amazing number of examples for applications like this on the forum, as well as MeLabs own website, and the web in general.

I seriously doubt someone is going to be kind enough to write the code for you out of pure generosity and goodwill. That’s not to say no one will be helpful. Do a little research and come back with more specific questions. The help you reap will be proportional to effort you sow.

SteveB