PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses.
You can buy this amazing sensor for your project at most rated and cheapest price from ebay by clicking here.
You can view and download the datasheet of this Motion Sensor module from here.
Pin diagram of this module is as shown in the fig below.
GETTING STARTED VIDEOS
This video will let you know the working principle of this module and will also let you know how to use this module by interfacing it with Arduino board
This video will let you know how to use PIR sensor module with your Raspberry Pi board
PROJECTS USING THIS
1) ALARM USING PIR SENSOR AND ARDUINO BOARD
2) AUTOMATIC DOOR OPENER USING PIR AND ARDUINO BOARD
3) Machine to Machine Talk project using PIR sensor and ESP8266 WiFi Modules