Digital_Infrared_motion_sensor_(SKU_SEN0018) - jimaobian/DFRobotWiki GitHub Wiki

Digital Infrared motion sensor (SKU:SEN0018)

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

                                                    |---------|------------------------------------------------------------------------------|
                                                    | **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);
     }
  }