KY 003 Hall Magnetic Force Sensor Module For Arduino

KY-003 Hall Magnetic Force Sensor module is a switch that reacts to the presence of a magnetic field, turning itself on or off. Compatible with popular microcontrolers like Arduino, Raspberry Pi and ESP32.

KY-003 SPECIFICATIONS

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

Operating Voltage	4.5V to 24V
Operating Temperature Range	-40°C to 85°C [-40°F to 185°F]
Board Dimensions	18.5mm x 15mm [0.728in x 0.591in]

CONNECTION DIAGRAM

KY-003 ARDUINO CODE

The following Arduino sketch will turn on the LED on pin 13 when you put a magnet near the module.

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

• Fritzing Part: KY-003 Hall Magnetic Sensor Module.
• 3144 Datasheet by Allegro Microsytems.
• Fritzing Official Site.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 microcontrolers like Arduino, Raspberry Pi and ESP32.

  

  

  KY-003 Hall Magnetic Force Sensor SPECIFICATIONS:

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

  Operating Voltage	4.5V to 24V
  Operating Temperature Range	-40°C to 85°C [-40°F to 185°F]
  Board Dimensions	18.5mm x 15mm [0.728in x 0.591in]

  CONNECTION DIAGRAM

  Connect the board power line (middle) and ground (-) to +5 and GND on the Arduino respectively.

  Connect signal (S) to pin 3 on the Arduino.

  KY-003	Arduino
  S	Pin 3
  middle	+5V
  –	GND

  

  KY-003 ARDUINO CODE

  The following Arduino sketch will turn on the LED on pin 13 when you put a magnet near the module.

  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

  • Fritzing Part: KY-003 Sensor Module.
  • 3144 Datasheet by Allegro Microsytems.
  • Fritzing Official Site.

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