But that project only showed you how to interface the Arduino with the keypad — [Doug] went the ... to send text messages to himself when the alarm system is armed, disarmed, or triggered.

Slomin’s Alarm Systems has a mixed reputation when it comes ... As of publishing, the base system includes a panel and keypad, motion detector, up to three door contacts, window decals, lawn ...

The SimpliSafe Indoor Home Security System (8-piece) is on sale at Best Buy for $124.99, down from the normal price of $249.99. That's a 50% discount.

Overall, the design of the SimpliSafe system is functional rather than ... If you just want the sensors to work with the alarm and the keypad (for arming and disarming), you don't need to pay ...

the Ring Alarm system comprises a base station, a contact sensor, a motion detector, a keypad (for alarm arming and disarming), and a range extender (so you can spread your sensors out further).