Until now, we've been putting together the elements that will allow us to connect sensors to our alarm system to detect intrusions using either switches or passive infra-red motion detectors, which in turn will tell our Raspberry Pi that something has happened in a particular zone. These elements will all come together as a whole system later in this book.
Our system is now going to become a whole lot more sophisticated with the addition of cameras to take pictures and video clips, and e-mail them to us straightaway when it detects something.
We'll also use e-mail to send us alerts on our smart phone when we're out and about when any of the sensors in the system are triggered.
In this chapter we will ...