LED Matrices

FT LED Matrices At Noisebridge

128x128 display spreading holiday cheer

• Flaschen_Taschen - Runs fully featured ft-server built out of beer bottles and WS2811 pixels.
• Small LED Square - 64x64. Made from salvaged 64x32 P4 RGB LED modules. Downstairs near the front door, on the wall. Runs fully featured ft-server and rickrolls you! Send packets to led-square.noise.
• Big LED Square - 128x128. Made from salvaged 64x32 P4 RGB LED modules. Currently downstairs on the stage. Runs fully featured ft-server! Send packets to ledwall.noise. Login is pi:noisebridge272!

How to control

• Get on Noisebridge wifi and visit http://led-square:4444. Send images or text to any LED display through your browser.
• Send UDP packets per the FT protocol.
• Use a client library for C++ or Python.

Tips:

• Default patterns are set to display on low layers. If you want your pattern override this, display it on a higher layer (FT allows layers 0-15 by default).
• (0,0,0) pixels are transparent. If you want a pixel on a higher layer to be black set it to (1,1,1) or similar.

Power management

There's no need to unplug these displays at night, they use very little power. Abrupt power offs can corrupt memory cards on their controllers. When this happens reviving them may involve time-consuming re-flashing. Some displays may have an on/off button.

Many LED displays are setup to go to sleep between the hours of midnight and 8am to save a little power and calm the space.