Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive and easily available components. One advantage of using Arduino as a security system is the flexibility!

Deba168's system uses two Arduinos, an RF transmitter, a motion sensor, and a few other parts to piece it all together. When the motion sensor detects movement, it buzzes the other Arduino.

arduino gsm security alarm. Working of the system is very simple and self-explanatory. When input power is applied to the system, the system goes into standby mode. However, when the terminals of ...

All you need is an Arduino, a motion sensor, a few wires and headers, and the code provided at the site below. Hit the link to see step-by-step instructions on how to put it together.

Here is the Arduino code for the Parallax sensor. int motion_1 = 2; int light_1 = 13; ... PIR Pin “Alarm” connects to Arduino ... These WIRED-tested multiroom mesh systems will get you online ...

All the code is available on GitHub in case you also have a DSC 1550 alarm system. It’s a pretty slick hack, so don’t forget to check out the video after the break.