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.

Rehabilitating old alarm systems is a popular project that we’ve covered plenty of times, like this Arduino upgrade for a DSC 1550 panel. But we like the way [Bill] really went the extra mile to ...

arduino gsm security alarm. Working of the system is very simple and self-explanatory. When input power is applied to the system, the system goes into standby mode. However, when the terminals of ...