Hall-Effect Switch SPIO (ME-00028-1A)

ABOUT
The Magzor Hall-Effect Swtich is a reliable means of detecting the presence of a nearby magnetic field. We've used them with the south pole of a small neodymium magnets as proximity switches. They're a great alternative to physical switches, which generally require debouncing and have a limited mechanical lifetime, and optical switches, which can be tricked by stray light or particulate buildup.

Power
The board accepts 3.3 V to 24 V (although 3.3 V is recommended for use with other Magzor MICs).

Connectors
The board has a standard 3-pin SPIO sensor header with VCC, GND and SIG pins.

Pins

 * VCC: Power to the board (3.3 V to 24 V)
 * GND:
 * SIG: Signal output from the sensor. The signal is pulled-up to VCC when no field is present and drops to Ground when triggered by a magnetic field.