Build a Motion Detector That Reports Time and GPS Location Data.
If you’re looking for a way to keep an eye on what’s going on around you, this battery-powered GPS motion sensor alerts you to a hijacker via SMS text message.
This custom assembly by Jason Sutera uses LinkIt ONE , an ultrasonic unit of measurement range (HC-SR04), some LEDs and a number of other electronic components, which warn you of the movement no matter where you are. When the device detects movement, an SMS text is sent to your phone with the time and GPS location. That way, if you had multiple alarms, you would know which one went off. Suter suggests you use this setting as an alarm when camping, or as a mobile alarm when you are working on something outdoors or in tight spaces, or even as a wildlife alarm for capturing nocturnal or elusive creatures. … Some basic soldering skills are required, but Suter provides a schematic so you know which parts are going where. You can see it in action in the video above and find the complete guide at the link below.
GSM Proximity Alert with GPS Location and Time | Instructables