SunFounder Switch Hall Sensor Module for Arduino and Raspberry Pi

A switch Hall sensor module is composed of a switch Hall sensor, resistor, and capacitor in an integrated circuit.Based on the Hall Effect, a Hall sensor is one that varies its output voltage in response to a magnetic field. Hall sensors can be categorized into linear (analog) Hall sensors and switch Hall sensors. A switch Hall sensor consists of a voltage regulator, Hall element, differential amplifier, Schmitt trigger, and output terminal and it outputs digital values.The module can be applied to the measurement of revolution, revolving speed, wind speed, flow speed, proximity switch, door lock notification device, alarm, auto-control circuit, etc.More details can be found in http://wiki.sunfounder.cc/index.php?title=Hall_Sensor_module   Features Signals are output as long as there is a conductor cutting the magnet field.  High precision and good linearity, Adjustable sensitivity (accurate adjustment). With no contact, abrasion, shaking, or bound.  Working voltage: 5V;PCB size: 2.0 x 2.0 cm.  With power light and signal output indicator.  Output digital signals, with a 3-pin anti-reverse cable, included.    Package List Switch Hall sensor module x 1 3-Pin anti-reverse cable x 1