Roof LED

Kistan has a grid of pixels on the roof controlled by a single controller. The pixels are connected using wires and divided into three different power supply groups (see power drawing).

Connection to LMixer

All roof LEDs are controlled by a single controller. It is connected to the same network as the servers and LMixer is streaming the layer data over the network using UDP.

Raspberry Pi

A Raspberry Pi with custom software is used to control the roof LEDs. It is powered with a normal USB Power supply and is connected to the internet with a LAN cable.

rpi_image

The black wire is connected to ground on pin number 4 (GND)

The green wire is connected to data on pin number 12 (GPIO18)

rpi_connection

Location of Pi

The Pi is located on top of the cable tray in the roof. As indicated on this picture.

rpi_location