Here is a simple general-purpose security alarm circuit built on the Arduino platform. It brings up an obtrusive alert signal when an intrusion/theft attempt is observed by its front-end sensor. In ...

The project uses an Arduino to create a Twitter burglar alarm which can tweet in the event of an intruder entering the house without authorization. The project uses an Arduino to create a Twitter ...

The goal of this module is to teach students about the properties of sound and computing distance with an ultrasonic sensor. The program can also be used to measure the relative distance. This module ...