Digital Infrared motion sensor (SKU:SEN0018)

From DFRobot Electronic Product Wiki and Tutorial: Arduino and Robot Wiki-DFRobot.com

Introduction

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low.


Specification

  • Type: Digital
  • Supply Voltage:3~5V
  • Current:50μA
  • Working temperature:0℃~+70℃
  • Output level(HIGH):4V
  • Output level(LOW):0.4V
  • Detect angle:110 Degree
  • Detect distance:7 meters
  • Size:28mm×36mm
  • Weight:25g

Application

  • Automatic door
  • Infrared burglar alarm
  • The highway vehicle traffic counter

Pinout

Infrared Sensor new1.jpg

Num Label
1 Digital Signal Out
2 VCC
3 GND
4

Jumper Selection: Repeatable trigger and unrepeatable trigger selection.

  • H: Repeatable trigger
  • L: Unrepeatable trigger
5 Potentiometer: To adjust trigger latency from 0.5s to 50s.



Tutorial

Connection Diagram

Motion sensor Connection diagram

Sample Code

 const int buttonPin = 2;    
  const int ledPin =  13;      
  void setup() {
    pinMode(ledPin, OUTPUT);      
    pinMode(buttonPin, INPUT);     
  }
  void loop()
  {
     if (digitalRead(buttonPin) == HIGH) 
     {     
       digitalWrite(ledPin, HIGH);  
     } 
     else {
       digitalWrite(ledPin, LOW); 
     }
  }

Result

When sensors detect people closed, the light will be lighted.

FAQ

Q1. Some general Arduino Problems/ FAQ/ Tips, very good to know.

A. Clike the topic link on DFRobot Forum.



For any question/advice/cool idea to share, please visit DFRobot Forum.


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