I'm very tired at the moment and this is probably very easy to solve, but at the moment I need help.
I have a layout where the user is supposed to draw a RFID card over a scanner. I want the numbers from the card to be registered in a global field or variable and then perform a search.
However, there are some caveats:
- The system should detect by itself when there are no more digits coming from the reader.
- We don't know how many characters that's on the card. It could be all from 7-13.
- There are no stop character from the reader. They are just plain numbers, eg "7566984401".
Because of that I am thinking I must give the system one second to wait for more characters, my problem is that I can't get the timer to work. If I trigger it on a keystroke, it would be triggered for every number that's on the card, and it would be a mess. I have experimented with loops etc, but it gets very stupid in the end.
Any ideas or examples maybe?