When running a large haunted house, you want most of the special effects to be automated. But for this to be effective, you need to get the timing right. The best way to do this is to use sensors to detect where your guests are.
In this project, I am going to show you how to make a simple DIY pressure plate switch. This is just a pressure sensitive switch that is activated when someone steps on it. A sensor like this is really useful for effects that require someone to be in a specific location. I also give several examples of ways that you can use it to activate special effects in a haunted house.
Step 1: Materials
3 Large Sheets of Cardboard
Several Feet of Insulated Wire
A Sharp Knife