Programmer based in Brooklyn, NY
blob.png

@ITP

Creative Switch: Ring the bell!

I adopted the concept of ringing a bell to activate the LED lights in my circuit. The Bell Switch is a momentary switch with an open default state. When the user shakes the bell, the circuit becomes closed at the moment of contact between the clapper of the bell and the side surfaces.

There are two separate side surfaces that the clapper can strike. Each side is connected to a different light; the LEDs are positioned in parallel with an open switch for each. At any given point, one of the two switches can be closed by the clapper of the bell.

Sides.jpg
Clapper.jpg
Bell.jpg

I used conductive tape and a plastic cup to create the two side surfaces of the bell. Then, to make the clapper, I used a nut and bolt soldered to a wire; I needed something with more weight than a piece of aluminum foil in order to have the clapper swing side by side inside the bell.

Below is the full circuit of the switch. Using alligator clips, I connected each of the LED lights to the corresponding sides of the bell. The wire from the clapper of the bell is connected to the positive row after the resistor.

Circuit.jpg

See it in action here!

physicalcomputingKatie Han