How would one build a device that follows/is attracted towards a signal(IR, RF, etc.)? Answered
Hello, what is the simplest way to control a device so that it is drawn towards a certain point? I'm sure there is already an instructable on such a device but I can't seem to find it. Sound or voice control, line following, and light following(except maybe IR) won't work. Any guidance would be greatly appreciated. Thank you!