Difference between revisions of "Cerealbot/Software"
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| − | + | == Webcam == | |
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==== Webcamera Information ==== | ==== Webcamera Information ==== | ||
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[https://projects.archlinux.org/svntogit/community.git/tree/trunk/motion.service?h=packages/motion] | [https://projects.archlinux.org/svntogit/community.git/tree/trunk/motion.service?h=packages/motion] | ||
| − | + | == Octoprint Config == | |
Haproxy setup: | Haproxy setup: | ||
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https://gist.github.com/christiannelson/3900758 | https://gist.github.com/christiannelson/3900758 | ||
| − | + | == RedQueen256 Integration == | |
| − | + | == Slic3r Config == | |
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| + | == Octoprint Server - RPi == | ||
| + | |||
| + | === Raspbian - Debian === | ||
=== Archlinux === | === Archlinux === | ||
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Right now I'm streaming the webcam from v4l-mjpg-streamer, total pain, will look for something better. | Right now I'm streaming the webcam from v4l-mjpg-streamer, total pain, will look for something better. | ||
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| + | == Protips == | ||
| + | |||
| + | === BYOBU === | ||
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| + | * F1 allows you to set "log into byobu" to save some time while logging in. | ||
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| + | * 'C-a a' will send C-a to screen, so that you can use screen within byobu to debug the printer's serial connection. | ||
Revision as of 12:03, 27 May 2015
Contents
[hide]Webcam
Webcamera Information
To list available formats:
v4l2-ctl --list-formats
or
v4l2-ctl -d /dev/video0 --list-formats-ext
With Octoprint
To use an http stream with octoprint, the URL has to be formatted correctly.
At first glance, I tried: cerealbox.256.makerslocal.org:8081, which didn't work.
Turns out Octoprint blindly appends a GET variable to the URL, which turns the above into: cerealbox.256.makerslocal.org:8081?2354jk345 which isn't a valid URL anymore.
So, you have to set up the webcam URL like: http://cerealbox.256.makerslocal.org:8081/
Here the trailing slash lands the GET variable. It took Hunter Fuller to figure all that out.
mjpg-streamer
mjpg-streamer is by far the best solution for webcam streaming from the RPi. A recent update brought immense relief for CPU overhead.
Base command to run:
mjpg_streamer -b -i "./input_uvc.so -d /dev/video0 -n -f 5 -r 1280x720" -o "./output_http.so -p 8080 -w ./www"
Previously I've used the -y flag for compatibility, which totally crushed the little CPU, but the most recent build of mjpg-streamer appears to work quite well with my Logitech webcam with the default MJPG codec.
ffmpeg + ffserver
I also tried ffmpeg+ffserver. Didn't go over well, I'm not patient enough to learn how to set it up correctly.
motion
Octoprint Config
Haproxy setup:
https://github.com/foosel/OctoPrint/wiki/Reverse-proxy-configuration-examples
https://gist.github.com/christiannelson/3900758
RedQueen256 Integration
Slic3r Config
Octoprint Server - RPi
Raspbian - Debian
Archlinux
To run octoprint from port 80 as user 'octoprint', I adjusted the systemd unit file to launch with authbind.
[Unit] Description=Octoprint 3d Printing Web Server After=network.target [Service] User=octoprint Group=octoprint Type=simple ExecStart=/usr/bin/authbind --deep /usr/bin/octoprint --port 80 Restart=on-failure [Install] WantedBy=multi-user.target
Right now I'm streaming the webcam from v4l-mjpg-streamer, total pain, will look for something better.
Protips
BYOBU
- F1 allows you to set "log into byobu" to save some time while logging in.
- 'C-a a' will send C-a to screen, so that you can use screen within byobu to debug the printer's serial connection.
