He’s using an Arduino Uno and an Ethernet breakout board to hook it up to the network. This allows him to send text messages to himself when the alarm system is armed, disarmed, or triggered.

There’s a huge market for 433 MHz alarm system hardware out there ... From there, the code on the ESP can fire off using whatever API works for your purposes. In this case [Aaron] is using ...

As a preview of his latest book, Arduino Project Handbook: 25 Practical Projects to Get You Started, Mark Geddes takes us through the project to create a simple laser trip wire alarm. You've probably ...

Real Time Home Security System ... you can use any SIM900A modem (and ofcourse any Arduino Uno board) of your choice. Carefully read the modem documentation before construction to make the task sweet ...

Our Home security system has been followed by the latest technology at a low cost. In this study, we used the PIR (Passive Infra-Red) movement sensor, the Arduino sensor as the core for movement ...

Battery backup is included in the design to ensure that the alarm unit keeps working in case the mains power supply system ... of Arduino through transistor T1 (BC547). The input to the Arduino is ...