What is Raspberry Pi? It’s a low-cost micro-computer that is able to run Linux and has endless extension possibilities. It cost only about US$35 and opens up endless possibilities of what you can build with it.
We need some hardware for this project. This is a list of the major things we need:
Raspberry Pi Model B: This is the larger model of the Raspberry computer system with 700MHz and 512MB Ram. It supports HD video. You can easily order it from i.e. here. Cost: about US$40. You could also use the Raspberry Pi Model A which is slightly cheaper and consumes less energy. Stefan Knight has written an excellent article on how to run this whole project on a model A.
Raspberry Pi Camera Module: This module was specially build for the Raspberry micro-computer. It has a connector to be plugged directly into the Raspberry board and supports HD video up to 1080p.
A housing for the camera: you don’t need to buy a high-price-housing for your Raspberry. There are loads of very cheap fake security cameras available which perfectly fit our needs here. Search the web for “surveillance camera dummy” and you will find loads of housings for your new camera for only a few dollars. You can use any camera housing, but only be careful about the size of the housing so that the Rasperry board will fit in there. The dimensions of the Raspberry board are 85.6 x 53.98 x 17 mm (approx 3.37 x 2.13 x 0.67 in).
Power supply: The Raspberry computer does not come with any power supply, you have to get one on our own. Any power supply with a micro-USB plug can do the job as long as it supplies at least 1A of power. We have ordered such a power supply which already has a micro-USB plug for about US$10
SD card: as the Raspberry Pi does not have any storage on board, you need to add some so that you can install and run the operating system for this device. Any SD or microSDHC should do the job, but we recommend using a Class 10 SD card. It’s only around US$7
To connect this cam to your network, you also need some kind of network connection. One possibility is to use a LAN connection, but you would need to put LAN cable to the point where you want to mount the camera. A better alternative is such a WiFi USB adapter for only about US$10