Introduction
In my previous blog post I managed to work out how to read the alarm pin found on the Hi3518 camera module I have been playing with. With this worked out, I decided to combine the Hi3518 with an HC-SR501 PIR sensor so that, with a bit of software written based on the samples in the Hi3518 SDK, I could save images from the camera whenever the PIR sensor detected motion. This worked well, so I ended up putting together a waterproof enclosure to house the camera and sensor.
