DFRobot Gravity Digital Infrared Motion Sensor Module PIR Motion Sensor Ideal for Security Systems & Automation

Description:

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 its detecting angle. The human, 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 undeunderstandings 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. To ease the difficulty of using this sensor,  a GravityInterface is adapted to allow plug and play. The IO expansion shield is the best match for this sound sensor connecting to your Arduino as this sensor can work at 3.3V, which makes it compatible with Raspberry Pi, Intel Edison, joule, and Curie.

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

Specifications:

• 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)

Features:

1. Low power consumption
2. Compact size
3. Cost-effective
4. Adjustable sensitivity

Projects

• Project 1. DFRobot AutoEco System takes care of your garden.

Following this project will help to grow a vegetable garden and automate some other processes in our house along the way.

• 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.