I got it to work!
Yup, found an old com-to-some-weird-connector adapter and cut the end off. I put a green led, it works great. I'm going to put a relay on it so it flashes on, instead of off, or even put a speaker on it.
Two problems with the program
- The led should only flash when the toast is on, or only untill I click on the window.
- If you can't do that, at least make me able to stop it using while the window is open, because it keeps flashing when I press reset and the window is open.