Difference between revisions of "Cerealbot/Software"

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== Webcam ==
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[https://github.com/ctag/cerealbox Github files for this project].
  
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To list available formats:
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== Slic3r Config ==
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<pre>
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v4l2-ctl --list-formats
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</pre>
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or
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<pre>
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v4l2-ctl -d /dev/video0 --list-formats-ext
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</pre>
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==== Octoprint ====
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I'm still working on a Slic3r config, its on github.
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To use an http stream with octoprint, the URL has to be formatted correctly.
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At first glance, I tried: cerealbox.256.makerslocal.org:8081, which didn't work.
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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.
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So, you have to set up the webcam URL like: http://cerealbox.256.makerslocal.org:8081/
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Here the trailing slash lands the GET variable. It took Hunter Fuller to figure all that out.
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==== mjpg-streamer ====
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[https://github.com/jacksonliam/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.
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Base command to run:
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<pre>
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mjpg_streamer -b -i "./input_uvc.so -d /dev/video0 -n -f 5 -r 1280x720" -o "./output_http.so -p 8080 -w ./www"
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</pre>
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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 using the default MJPG codec.
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== Octoprint Config ==
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Haproxy setup:
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https://github.com/foosel/OctoPrint/wiki/Reverse-proxy-configuration-examples
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https://gist.github.com/christiannelson/3900758
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== RedQueen256 Integration ==
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== Slic3r Config ==
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== Octoprint Server - RPi ==
 
== Octoprint Server - RPi ==
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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 ==
 
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=== 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.
 

Latest revision as of 03:08, 9 June 2015

Github files for this project.

Slic3r Config

I'm still working on a Slic3r config, its on github.

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.

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