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Arduino Project: Hall Magnetic Sensor

Posted by Fiona Su on

File:17955.png

Introduction
This is a Magnetic Induction Sensor. It senses the magnetic materials within a detection range up to 3cm. The detection range and the strength of the magnetic field are proportional. The output is digital on/off. This sensor uses the SFE Reed Switch - Magnetic Field Sensor.
Specification

  • Sensing magnetic materials
  • Detection range: up to 3cm
  • Output: digital on/off
  • Detection range and magnetic field strength are proportional
  • Size: 30*20mm
  • Weight: 3g

Connection Diagram

File:17956.png

Sample Code

int ledPin = 13;                // choose the pin for the LED
int inputPin = 3;               // Connect sensor to input pin 3 
int val = 0;                    // variable for reading the pin status
 
void setup() {
  pinMode(ledPin, OUTPUT);      // declare LED as output
  pinMode(inputPin, INPUT);     // declare pushbutton as input
} 

 

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