Interesting Exhibition
Bedford Gallery, Walnut Creek
Illuminated Sculpture
Closes Feb 22nd.
A Couple More Sensors
Tilt Switch
Same as a switch, but can be useful for interacting with an arm or lid or other movable part
Hall Effect Sensor
Detects the presence of a magnetic field. Puts out a HIGH signal when exposed to one magnetic field and LOW when exposed to its opposite. It stays at HIGH or LOW when the magnetic field is removed.