I am needing help! I am still pretty new into all of this but I am wanting to play a prank on a friend of mine using the arduino but I'm not sure how to start.
I have easy access to her vehicle and I am wanting to make something that will connect the brake to her car horn. But not the first time she presses the brake. I am wanting to have it so she is driving and them stopping at a red light and presses the brakes and the horn honks. Can any one help work me though this please.