Arduino Alarm Clock Code Alarm clock built from scratch and prototyped with Arduino. Shows time of day, alarms at a set time, and has a USB port to allow for charging external devices.

This Arduino based visitor alarm alerts you to the entry of a visitor by producing a beep sound every time the door is opened & automatically switches off after a few seconds. It is built around an ...

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.

Arduino PIN-Protected Alarm System with Motion Detection An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion ...

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C protocol. Real time clock means it runs even after power failure. When power is ...

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 ...

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!

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 ...