8/18/2019 Arduino hall KY_003.docx

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Arduino KY-003 Hall magnetic sensor modulehttps://tkkrlab.nl/wiki/Arduino_KY-003_Hall_magnetic_sensor_module

Hall magnetic sensor module

The KY-003 is a magnetic switch. If no magnetic field is present, the signal line of the sensor is HIGH (3.5 !. If a magnetic

field is presented to the sensor, the signal line goes "#$, at the same time the "%& on the sensor lights 'p. The polarit of 

the magnetic field is of infl'ence to the switching action. The front side of the sensor needs the opposite polarit as the )ac*

of the sensor to switch on.

In the e+ample program the led on the rd'ino (pin 3! will )e t'rned on when a magnetic field is present.

onnecting to the Arduino

in - / G&, connect to G& of the rd'ino

in (middle pin! 15 2, connect to rd'ino 15

in signal, connect to rd'ino pin 0

ower cons'mption, 3 m in rest, 4 m when switched on

!"ample code/*

KY-003 Hall magnetic switch

*/ 

 

int Led = 13 ; // define LED Interface

int SENSOR = 10 ; // define the Hall magnetic sensor interface

int val ; // define numeric variales val

 

void setup ()

{

  pinMode (Led, OUTUT) ;  // define LED as out!ut interface

  pinMode (SENSOR, !NUT) ;  // define the Hall magnetic sensor line as in!ut

"

 

void loop ()

{  val = di#italRead (SENSOR) ; // read sensor line

  i$ (val == LO%) // when the Hall sensor detects a magnetic field" #rduino LED lights u!

  {

  di#ital%&ite (Led, '!');

  "

  {

  di#ital%&ite (Led, LO%);

  "

"