If you want to scare the pants off your trick or treaters this Halloween you need some props that have some movement. Even better is something that reaches out and touches the victim. Youtube user Jason LeSueur Tatum is working in a spider prop that does just that, it uses a Parallax PIR sensor to detect the person, an Arduino then controls a solenoid which allows air to suck and spit water at the person as the spider makes some sounds. Watch the video above to see the prop in action and the video below to see how it works.
You can see the rest of Jason’s Halloween projects on his Dury Lane Cemetery site.