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.

LCD keypad combines HID smart card reader, access control and alarm keypad in one Pacom Systems' new reader will work as an access control pad and alarm keypad and will read HID iClass cards.

All the code is available on GitHub in case you also have a DSC 1550 alarm system. It’s a pretty slick hack, so don’t forget to check out the video after the break. Continue reading → ...