A master computer, which can be either a Raspberry Pi or a Linux PC, is in control of the wall and plays video files. This communicates to all the Raspberry Pi ’tiles’ of the wall via an ethernet network. Each tile displays part of the picture on its screen, and the screens together form the ‘wall’.
The combination of master and tiles together forms a PiWall video wall system. The PiWall can be either fully stand-alone or the master can be connected to an external network via an additional wired or wireless network adapter, thus enabling the system to be controlled remotely.