A tool for streaming frames to rpi-rgb-led-matrix over ZeroMQ.
Available as a Docker image at knifa/led-matrix-zmq-server.
In addition to rpi-rgb-led-matrix
, requires czmq
.
You can run the image with e.g., the following command. Mostly, you MUST pass --privileged
as access to /dev/mem
is required.
docker run \
--privileged \
--rm \
knifa/led-matrix-zmq-server \
--led-brightness=50 \
--led-cols=64 \
--led-slowdown-gpio=2 \
--led-pwm-lsb-nanoseconds=50 \
--led-rows=32 \
--zmq-endpoint=tcp://*:1337
The following server arguments are available:
--zmq-endpoint
: The ZMQ endpoint to listen on. Default istcp://*:42024
.--bytes-per-pixel
: Number of bytes per pixel. Default is3
(i.e.,24BPP
)
The remaining matrix arguments are passed directly to rpi-rgb-led-matrix
. Check out their README for details.
The server is a simple ZMQ REQ-REP loop. All you need to do is send your frame as a big ol' byte chunk then wait for an empty message back.
Each frame should be in a BGR24 (or however large you passed into --bytes-per-pixel
) format, with exact size depending on your matrix setup (i.e., whatever rpi-rgb-led-matrix
says your final canvas size is.)
GNU GPL v3. See LICENSE.