Project32.Linear Magnetic Hall Module

Description

The KY-024 Linear magnetic Hall sensor reacts in the presence of a magnetic field. It has a potentiometer to adjust the sensitivity of the sensor and it provides both analog and digital outputs.

The digital output acts as a switch that will turn on/off when a magnet is near, similar to the KY-003. On the other hand, the analog output can measure the polarity and relative strength of the magnetic field.

Compatible with popular electronics platforms like Arduino, Raspberry Pi, Esp32, Teensy and others.

Specification

  • Operating Voltage 2.7V to 6.5V

  • Sensitivity 1.0 mV/G min., 1.4 mV/G typ., 1.75 mV/G max.

  • Board Dimensions 1.5cm x 3.6cm

Connect

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Code

int led = 13 ; // LED on arduino
int digitalPin = 3; // linear Hall magnetic sensor digital interface
int analogPin = A0; // linear Hall magnetic sensor analog interface
int digitalVal ; // digital readings
int analogVal; // analog readings

void setup ()
{
pinMode (led, OUTPUT);
pinMode (digitalPin, INPUT);
//pinMode(analogPin, INPUT);
Serial.begin(9600);
}

void loop ()
{
// Read the digital interface
digitalVal = digitalRead(digitalPin) ;
if (digitalVal == HIGH) // When magnetic field is present, Arduino LED is on
{
    digitalWrite (led, HIGH);
}
else
{
    digitalWrite (led, LOW);
}

// Read the analog interface
analogVal = analogRead(analogPin);
Serial.println(analogVal); // print analog value

delay(100);
}

Phenomenon

_images/32.jpg