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
Here are the materials and tools that you will need to make your DIY pressure plate switch:
3 Large Sheets of Cardboard
Several Feet of Insulated Wire
A Sharp Knife
Step 2: Attach Foil to Two of the Cardboard Sheets
Tear off a piece of aluminum foil that is at least as big as the cardboard sheets. Lay it centered on the cardboard. If the foil hangs over the edge of the cardboard wrap it around to the back side. Tape one side of the foil to the cardboard. Then stretch the foil tightly and tape the opposite side. Do this for all four sides of the foil.
Repeat this process with a second sheet of cardboard and foil.
Step 3: Attach Wires to the Foil with Tape
Take one wire and strip about one inch of insulation off of the end. Then lay it on the first sheet of cardboard so the the bare end of the wire is touching the aluminum. Apply a piece tape on top of the wire to hold it in contact with the foil. Repeat this with the second wire and the second sheet of cardboard. This isn't the most secure way of attaching the wires but it should hold together for Halloween.