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Varenr. SEN0018

Gravity: Digital Infrared Motion Sensor For Arduino


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Project 1. DFRobot AutoEco System takes care of your garden.
By following this project it will help to grow a vegetable garden, and automate some other processes in our house along the way.
List of basic hardware to setup an AutoEco Sys:
  • 1. Romeo
  • 2. X-Board
  • 3. Light Sensor
  • 4 .Gas Sensor
  • 5 .Motion Sensor
  • 6. Tempreture&Humidity Sensor
  • 7. Waterproof temperature sensor

  • Project 2. How to Make an Automatic Christmas Tree
    With all the lights and decorations that people use at Christmas, power is left on all the time and electricity bills skyrocket. I made this motion detecting Christmas tree light setup that only turns on when people are nearby.
    Hardware list:

    Project 3.How to Make an Mail Alarm

    This time using a PIR sensor and an ESP32 to send an email every time that movement is detected.

    Hardware components:

    Project 4. How To Make LED Kitchen Sink Lights with a PIR Sensor, Arduino, and 3D Printing



    Note: The product supply voltage is modified to 5V.

    This is a simple to use arduino 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. This sensor checks for infrared heat in it's detecting angle. Human body, pets and several other things emit energy that the sensor is looking for, it compares with the snapshot and if there is a recent change it triggers.

    Get on with your Home alarm security audit gear and experiment with this sensor to get a better understanding about its efficiency and working method. Infrared motion detectors are common all around the world for many different appliances. It's great for an Arduino or home automation project that requires automated motion feedback. Commonly found on automatic trigger light systems, where lights are ON when someone is in range and OFF when no one is around. Save power or trigger other actuators like a door opener or pet feeder. 

    The delay of sensing is adjustable via the potentiometer on the back of the sensor. 

    Gravity Digital Infrared Motion Sensor For Arduino Connection

    To ease the difficult of using this sensor,  a Gravity Interface is adapted to allow plug&play.  The IO expansion shield is the best match for this sound senor connecting to your Arduino. As this sensor can work at 3.3V which make it compatible with Raspberry Piintel edison, joule and curie. 


    • Type: Digital
    • Supply Voltage: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 ( 1.1 in x 1.4 in)
    • Weight:25g

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