One advantage of using Arduino as a security system is the flexibility ... The best sensor you can use to detect an intrusion is the Passive Infrared (PIR) Sensor. The PIR Sensor detects the motion of ...

The “snooper” here is an ordinary passive infrared (PIR ... The code is an Arduino project for the Digispark Attiny85 to turn on a light source when the PIR sensor detects something. Note that after ...

[ladyada] has a freshly-published and amazingly thorough tutorial on passive infrared (PIR) motion sensors. Most often seen in security floodlights and automatic doors, in creative hands these ...

Arduino leak sensors only have three pins ... from intruder detection to home automation. PIR motion sensors use infrared light to detect movement. Light is emitted and the sensor will trigger ...