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.

[IngGaro]’s system is built around a shield for an Arduino Mega. This shield includes connections to an alarm system, a GSM modem, temperature and humidity sensors, an Ethernet module, and IR ...

Alarm systems are complicated affairs. ... Build a Simple, Photo Snapping Alarm System with an Arduino. Thorin Klosowski. December 8, 2015 Alarm systems are complicated affairs.

Dejan Nedelkovski has built a stylish DIY touchscreen Arduino music player and alarm clock which has been ... It uses an Arduino Mega board and a 3.2” TFT touch screen with a suitable shield for ...