Interfacing KY-003 Hall Magnetic Sensor module with Arduino

Introduction

In this Tutorial, we are going to Interfacing KY-003 Hall Magnetic Sensor module with Arduino, The KY-003 Hall Magnetic Sensor module is a switch that responds to the existence of a magnetic field, when the sensor is near the magnetic field then it turns on or off itself.

This module is able to interface with popular electronic platforms like Arduino, ESP32, Raspberry Pi, and other microcontrollers. It gives a signal when near the magnetic field. this is equivalent to KY-024 Linear Magnetic Hall Sensor Module

Hardware Required

You will require the following Hardware Components for the Interfacing KY-003 Hall Magnetic Sensor module with Arduino

Specifications

This module contains an LED, a 680Ω resistor, a 3144EUA-S Hall-effect switch, and 3 male header pins.

Technical Data

Pinout

Pin Configuration

Circuit Diagram

The following circuit shows you the connection of the Interfacing KY-003 Hall Magnetic Sensor module with Arduino Please make the connection carefully

Circuit Connections

Place the module on the Breadboard and connect the power line (middle) and ground (-) of the module to +5 and GND of the Arduino respectively. and Lastly, connect the (S) signal pin to pin 3 of the Arduino.

Installing Arduino IDE Software

First, you will require to Download the updated version of Arduino IDE Software and Install it on your PC or laptop. if you Learn How to install the Arduino step-by-step guide then click on how to install Arduino Button given Blow

Code

The following Arduino code will switch on the LED placed on pin 13 of arduino when the KY-003 Hall Magnetic Sensor nears the magnetic field.

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);
	}
}

Downloads Files

• KY-003 Hall Magnetic Sensor Module Fritzing Part:
• 3144EUA-S Hall-effect switch Datasheet: