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Picture of Electric Door Opener

In my spare time I like to make stuff. One of my best devices is my automatic door opener. It opens your door when you put the access card over the switch. Your door still can be pushed open or closed, so this won't cause any problems.

(clip-art used was from free clip-art sites)

Step 1: Materials

Picture of Materials

-A door(obviously)
-An old RC car (I used an old batman one)
-Wire
-Paper clip
-Aluminum foil
-Scotch tape
-Electrical tape
-Batteries
-Alligator clips/Nine volt battery clip(useful to connect to nine volt battery, if that's what you're using.)
-Wire Strippers
-Scissors
-Strong, thin magnets (neodymium work well)
-Old Credit Card
-Poster board (paper could be used, but isn't as strong)