aurora WROTE:If you want to do it yourself, try google with these words, combine in any fashion, "DIY", "cellular module", "motion detector", "PIC", "microcontroller", "hacking gsm module", "electronics". Try go through their project, find the common between these project, and see how they do it.
It's a long journey, you might want to break down the project into smaller task first.
aurora gave a very good explanation on how to start a project. Well done! I'm considering to use it as a template for my future post...lolz. Btw really hope to have more enthusiasts like u in this forum