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 ...

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.

Posted in Arduino Hacks, home hacks Tagged alarm panel hack, arduino alarm system, Arduino Uno, DSC 1550, DSC 1550 alarm panel ← How To Make A Hugo (Base) Crystal Radio: It’s A Match! → ...

Instead, Make shows you how to build an internet-connected alarm clock using an Arduino and Google. All you'll need is an Arduino Yúnm a touch screen, a USB speaker, and a few cables.