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.

The key hardware required here is an Arduino Uno ... system anew. While preparing the code, first of all, uncomment the line that starts with “rtc.adjust” like so: What this line does is take the date ...

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 ...

Real Time Home Security System using GSM Technology ... ofcourse any Arduino Uno board) of your choice. Carefully read the modem documentation before construction to make the task sweet and simple. /* ...

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. From there ...

The 3D printable system is powered by an Arduino Uno microcontroller and has been ... as it can be set up in just three minutes and is ready for use. It can handle up to 300mm and 2.5kg.