This repository contains a small python library to interact with the pentawall. It additionally contains several small applications using this library.
You can use the simulator if you don't have a pentawall handy.
This is the library. The
LedMatrix class offers the following functions:
send_pixel(): Set a single pixel to the specified RGB value. Coordinates start at 0x0 (as opposed to the undelying protocol).
send_image(): Sends a Python Imaging Library image to the wall
send_raw_image(): Send a raw image consisting of $height lines of $width RGB pixels. The data is supposed to be a string(-like) object containing binary data.
send_clear(): Resets the whole screen to black
change_priority(): Changes the priority of the connection. Default is 1 and higher priority connections paint over lower priority connections.
close(): Closes the connection to the pentawall
The address of the server can be passed to the object in its constructor, is
copied from the environment variable
LEDWALL_IP or defaults to 'localhost'.
Flow control is respected. Any function call sending a command to the pentawall
might block if there are more than
lazy_resp (default is 10) unacknowledged
The following helper functions are available:
const_loop(): Calls a function with a constant interval. It loops as long as the called function returns
True. Use this function to get constant framerates.
You should specify the IP address of the pentawall in the environment variable
LEDWALL_IP. If you are at the c3d2 HQ type the following line into your POSIX
If the environment variable
LEDWALL_PRIORITY is set the specified priority
will be set at the initialization of the matrix.
A snake game with built-in chaotic massive multiplayer experience. To start the game simply run:
You can add
-p [0-5] to prefer a player id and its color. A random free
player id will be assigned to you if you did not specify an id or it was
-d you deactivate input buffering which is more direct and
might be more suitable for you.
You will automatically play together with everybody else playing in your subnet. Every player should use the same output device as each client only paints the output of the corresponding player.
The network protocol is based on pure chaos and might have many bugs. Feel free to report any undetected collisions and duplicate targets.
A pacman eating the previos content of the ledwall
Game of Life
Conways Game of Life wrapped to fit the screen. Start it with:
$SEED is the initial configuration file. Some seeds are in
A scrolling text with fading colors
./fade_text.py "My text"
A simple image viewer scaling the image down keeping the aspect ratio without cropping: