Ok. Lets set up an hypothtical situation:
I have my Arduino UNO connected via USB-Cable to a computer with a OS of my choise. Now I want to make a programm, that consists of just one big button and nothing else. Everytime I press the button I want the Arduino to flash an LED which is connected to it.
How would I do this? Or: How Can I do this? (Because thats something I'd like to build)
Lua. or to be more precise LOVE2D
I googled it but didnt find any good information (partially because i didnt know what I was looking for). But im gonna look inside the forum section!
I would rate my google skills as pretty Ok. I just did´nt new the word 'interfacing'. I googled things like "Arduino controll with computer" or "Arduino controll without IDE"
This Python - Arduino demo should give you the general idea. You can do the same thing in any PC programming language.
Also have a look at the examples in Serial Input Basics - simple reliable ways to receive data.
...R