Linear Magnetic Hall Sensor

 Description:

Hall 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 indicator.

Its fast (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.

To 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 brought near.

A magnetic field is detected by the sensor and will be printed as an analog voltage value. You can control the sensitivity of the sensor with the potentiometer.

Pins:

1. VCC ↔ 2.3V ~ 5.3V
2. GND ↔ power supply ground
3. AOUT ↔ MCU.IO (analog output)
4. DOUT ↔ MCU.IO (digital output)

Applications

• Motor speed measurement
• Object position detection
• Smart car
• Electronic bricks

Features :

• Features wide range voltage comparator LM393
• Adjustable sensitivity
• Signal output indicator with the retaining bolt hole, convenient installation
• Output form digital switch output (0 and 1 high and low level)
• Signal output indication
• Single channel signal output
• The output effective signal is low level
• When there is sound, outputs low level and the signal light
• Can be used for Acoustic control light, give sound and light alarm working with the Photosensitive sensor, and sound control, sound detect

Package Includes 

• 1 x Linear Magnetic Hall Sensor