GSM Cell Phone Zone Alarm Based On Motion By James Allan Brady Updated: Feb. 14, 2019 11:46 pm EST So if you are paranoid you might want to hop on over to Hack-A-Day to see the GSM based motion ...

Real Time Home Security System using GSM Technology-An Anti-theft System! ... You can connect any intrusion detection unit (such as a light fence or a motion sensor) to the input connector J2. Note ...

A $199 Ring Alarm kit, for example, includes one motion sensor, one door/window sensor, a siren, and more, and it can be integrated with Ring’s video doorbells and indoor/outdoor security cameras.

And it's a solid deal—this nine-piece home security system comes with two motion detectors, four entry sensors, a smart camera, a base station siren with 24-hour battery backup and a keypad.

The sensor features frame sync for use in multi-camera or 360-degree camera systems and supports ultra-low power mode and an ambient light sensor, making it particularly well-suited for battery ...

All you need is an Arduino, a motion sensor, a few wires and headers, and the code provided at the site below. Hit the link to see step-by-step instructions on how to put it together.