Arduino Intrusion Detection System


Arduino Intrusion Detection System

by Kai


Ever wondered if people have been snooping around your room/house while you were out?
This Arduino intrusion detection system will detect people entering your space and log it to Twitter. The PIR motion sensor has a range of about 5 feet and is tripped by the presence of body heat.


  • 1 Arduino micro-controller
  • 1 Arduino Ethernet shield
  • 1 PIR motion sensor
  • 1 solderless bread-board (for prototyping)
  • Jumper wires (for prototyping)
  • 1 10K resistor
  • 1 LED (optional)
  • 1 Resistor for LED (optional)
  • A Twitter account and the Arduino Twitter library, or write your own 🙂

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Author : Kai(, No contact


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