hey
this is the first time im going to try and develop using an arduino
i want to know if i can make a gui with buttons for it?
if yes
can you help me with a simple button for LED off and LED on please?
can i connect it to some existing IDE's i use to create GUIs already?
I think we need a little more info here.
Do you mean a GUI running on a computer with a button that will turn a LED on Arduino on / off ?
If so, yes that is possible. You can do that in any programming environment that can communicate over a serial port.
If you do not already have experience / access to some programming environment, you should check out Processing, which is kind of related to Arduino, and open source and free.