Magnetic Sensor/Switch Brick

Overview

Electronic brick of magnetic switch can be connected to digital I/O port to obtain the current status of magnetic switch by reading the current digital signal. Generally speaking, output is high level; when the sensor encounters magnetic objects (such as magnet), output is low level.

Features

1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market.

2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock.

3. Sensor is located on the edge of PCB to facilitate detection.

Specifications

PCB size	24.0mm X 21.0mm X 1.6mm
Working voltage	3.3 or 5V DC
Operating voltage	3.3 or 5V DC
Compatible interfaces	2.54 3-pin interface and 4-pin Grove interface(1)

Note 1: S for digital output port, V and G for voltage at the common collector and ground respectively.

Electrical Characteristics

Parameter	Min.	Typical	Max.	Unit
Working voltage	3	5	5.5	VDC
Digital output voltage（VCC=5V）	0	-	5	V
Working current（VCC=5V）	-	436	-	uA

Demo

Connect S port of electronic brick of magnetic switch to D2 port of Arduino board, and we will use the following program to read its digital value. If the digital value is high level, LED lamp will be ON; if the digital value is high level, LED lamp will be OFF.

 int magnet=2;       //connect tilt to D2
 int LED=13;
 void setup()
 {
 pinMode(LED, OUTPUT);
 pinMode(magnet, INPUT);  
 }
 
 void loop()
 {
 if(digitalRead(magnet)==HIGH)   //when the digital output value of tilt is high, turn on the LED.
 {
   digitalWrite(LED, HIGH);   
 }
 if(digitalRead(magnet)==LOW)    //when the digital output value of tilt is low, turn off the LED.
 {
   digitalWrite(LED, LOW);
 } 
 }