Using motion detectors and an Arduino you can trigger lights ... Check to see if the sensor is triggered; if it is, flash the on-board LED in front of digital pin 13. This is a good way to ...

Here is an ultra simple Arduino Night Alarm project wired around ... level input to wake up. The best sensor you can use to detect an intrusion is the Passive Infrared (PIR) Sensor. The PIR Sensor ...

[Micamelnyk] decided to build a solution to this problem in the form of a motion sensing ... stationary. The LED will turn off after 20 seconds, indicating that the alarm is now armed.