Project24.KY-003 Hall Sensor

Description

The KY-003 Hall Magnetic Sensor module is a switch that reacts to the presence of a magnetic field, turning itself on or off. Compatible with popular microcont rolers like Arduino, Raspberry Pi and ESP32.This module offers a digital output.

Specification

Operating Voltage 4.5V to 24V
Operating Temperature Range -40°C to 85°C
Board Dimensions 18.5mm x 15mm

Connect

_images/24_bb.png

Code

int led = 13;//LED pin
int sensor = 3; //sensor pin
int val; //numeric variable

void setup()
{
    pinMode(led, OUTPUT); //set LED pin as output
    pinMode(sensor, INPUT); //set sensor pin as input
}

void loop()
{
    val = digitalRead(sensor); //Read the sensor
    if(val == LOW) //when magnetic field is detected, turn led on
    {
        digitalWrite(led, HIGH);
    }
    else
    {
        digitalWrite(led, LOW);
    }
}

Phenomenon