Hall Sensor Module -- Arduino compatible

Introduction

This item can easily change the magnetic signal into electrical signal, and has high reliability and sensitivity. It is a very interesting Electronic Module. This module can be used directly with Arduino Special Sensor Shield.

You can do some simple design about it, it supports "plug and play"

Specification

1. High sensitivity of 3144 Hall sensor and single polarity.
2. The digital quantity pulse output and level change when cutting magnetic induction line.
3. Schmidt trigger, Adjustable Sensitivity, Stable Performance.
4. Supply Voltage: +3V to +5 V, output high level when cutting magnetic induction line.
5. Used for motor velocity measurement (need magnets) and other application.
6. Interface: Analog.
7. Applicable to a variety of platforms including Arduino/AVR/ARM.

When hall sensor is close to the magnet, the data value reading from the Arduino corresponding pins is high.

When hall sensor is far way from the magnet, the data value reading from the Arduino corresponding pins is low.

Hardware connection

Code

int ledPin = 13;
int switchPin = A0; //to read digital signal
int value = 0;

void setup() {
 pinMode(switchPin, INPUT);
 pinMode(ledPin, OUTPUT);
 Serial.begin(9600);
}

void loop() {
 value = digitalRead(switchPin);
 if (HIGH == value) {

 Serial.println("Switch on");
 digitalWrite(ledPin, HIGH);
 }

 else {

 Serial.println("Switch off");
 digitalWrite(ledPin, LOW);
 }
}

Basically this module will output a HIGH signal if it detects magnetic filds. Please note the sensor is "monopole", which means it only react to one pole of magnet. So if it doesn't react to one pole, just switch to the other.

Product List

1. Hall sensor module x1
2. 3pin wire x1