Each controls a row or a column of the keypad. They must be connected to the Arduino on digital pins 22 - 29. The buzzer emits sounds when the system is activated, deactivated, or when the alarm is ...

The alarm clock is a simple project that uses an Arduino board to create a digital alarm clock. We Set the Time Using the Time Set[3rd button from left] & Hr[1st Button from left] or Min[2nd button ...

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!

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 ...

Alarm clocks are cheap and abundant, but they’re pretty boring. If you want to make your own, Instructables user Paranoid Legend shows you how to build one with an Arduino.

Arduino is one of those boards that has become synonymous with hacking and making. Since its introduction in 2005, over 700,000 official Arduino boards have been sold, along with untold millions of… ...

If you have an upcoming long distance move and you're concerned about thieves breaking into your moving truck you can rig up a motion alarm system that will send a text message as well as trigger ...

Posted in Security Hacks Tagged alarm, arduino, arduino mega, gsm, i2c, rfid, security ← Homemade Portable Gold Mining Trommel Soundwave Tunes Up Your Portable Workbench → ...