Effect Sensor Module is used to Detect the proximity of a magnet. It is
very much Smaller in size. When the magnetic field rises above a
threshold level, the open-collector output transistor switches on, which
pulls the logic-compatible output low and illuminates the on board LED
(The turn-on threshold is 35-450 Gauss, the minimum hysteresis is 20
Gauss, and the operating voltage range is 4.5 – 24 volts.This module uses the Allegro MicroSystems A3144EUA sensor. It has a 3 pin interface, signal, V+ and GND.
use this sensor/switch, place a 10K pull-up resistor between the “S”
pin and the middle pin (+), connect the “-” pin to ground. Supply
voltage to the middle pin. The “S” pin will go low (gets pulled to
ground) and the on board LED indicator will turn on when a magnet is
* Product Images are shown for illustrative purposes only and may differ from actual product.
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