Raspberry Pi

Wireless Server for Repetier

Webcam

- UPGRADE -

Parts for this section

Wireless 3D Printer Server

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Now that you can control your 3D printers from anywhere in the house, what can possibly be cooler than being able to keep an eye on it from anywhere!

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Here's how ...

• Raspberry Pi Camera

• Connect the RaspiCam to the Raspberry Pi as follows ... WARNING: connecting it can damage the camera

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Start and use your new Webcam

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• In the Terminal window type:

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                     sudo /etc/init.d/mpjgstreamer start                                                                        this launches the application​

                     cd /home/pi/mjpg-streamer/mjpg-streamer-experimental                               to change the directory         

                      ./mjpg_streamer -o "output_http.so -w ./www" -i "input_raspicam.so"         this starts the raspicam camera

                     sudo /etc/init.d/mpjgstreamer stop                                                                         this stops the raspicam application

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Congratulations !!!  You've now got a webcam to keep an eye on things remotely.

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To setup the webcam to be used in Repetier Server you must open Repetier Server in a web browser  and go to Settings menu and then to the Webcam tab...

Enter the required URLs using your own ip address:

• Dynamic Image URL:       http://10.0.1.17:8080/?action=stream

• Static Image URL:             http://10.0.1.17:8080/?action=snapshot

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Select the "Webcam Connection" from the drop down menu

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Install MJPG-streamer video camera  

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In a Terminal window you will need to type a series of commands as follows:

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• You must download and install cmake if not yet done (see Trouble Shooting)

• To download the updates, type (note: that it's LIBV4L-DEV as opposed to LIBV41-DEV !):

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​          cd /Download/cmake-3.4.1/                                                                                           # make sure to be in the correct directory !

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          sudo apt-get install libjpeg8-dev imagemagick libv4l-dev make gcc git cmake g++​

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         git clone                      # To download MJPG-streamer​

         cd mjpg-streamer/mjpg-streamer-experimental/                                           # change the directory

         cmake -G "Unix Makefiles"                                                                                     # unpack and build the MJPG-streamer

         make

         sudo make install                                                                                                      # install the built files​

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• Make sure to enable the raspicam, this is done by typing  sudo raspi-config and chosing Enable Camera

• You will need to reboot the Raspberry Pi after this ... remember to restart the Repetier Server after rebooting

To make MJPG-streamer start up automatically at bootup (Optional):

• In the Terminal window type the following commands 

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         cd /etc/init.d

         sudo wget

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• We need to edit the mjpgstreamer script since we're using RaspiCam as opposed to USB webcam:

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         In a Terminal window type:

         gksu nautilus

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         Locate the ​mjpgstreamer file in /etc/init.d directory and then open the file to edit the script

         In the script, replace "input_uvc.so" with "input_raspicam.so"

         Save As mjpgstreamer in the folder /home/pi/Desktop to make it easy to find

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         This may be redundant but, In a Terminal window type:

         gksu nautilus

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         mv /home/pi/Desktop/mjpgstreamer /etc/init.d/mjpgstreamer

         sudo chmod 755 mjpgstreamer

         sudo update-rc.d mjpgstreamer defaults

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To use MJPG-streamer by starting it manually each time you reboot your Raspberry Pi:

• ​Run the MJPG-streamer application as a process in the background:

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         cd ~/

         /home/pi/mjpg-streamer/mjpg-streamer-experimental/mjpg_streamer -i "input_raspicam.so" -o "output_http.so -w       /usr/local/share/mjpg-streamer/www" -b

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To start the Raspicam, type the following command in a Terminal window:   

        sudo /etc/init.d/mpjgstreamer start     

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Trouble Shooting

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Installing the 8 megapixel camera

• Type the following commands:

         sudo apt-get install cmake

         git clone

         cd userland

         ./buildme

• Then update the Kernel by typing:

        sudo rpi-update

• Test the camera by typing:

        raspistill -o cam.jpg

Setup the Raspicam on Repetier Server

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Download and Install:   CMAKE (if not already done)

This software is needed to use the "cmake" commands. 

I've left the directory from which you're working since you must install software at correct location.

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• Create a folder

       pi@raspberrypi ~ $                                                    mkdir Download

       pi@raspberrypi ~ $                                                    cd Download

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• Download necessary file and extract it

       pi@raspberrypi ~/Download $                               wget

       pi@raspberrypi ~/Download $                               tar -xvzf cmake-3.4.1.tar.gz

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• Compile and install cmake

       pi@raspberrypi ~/Download $                               cd cmake-3.4.1/

       pi@raspberrypi ~/Download/cmake-3.4.1 $       sudo ./bootstrap

       pi@raspberrypi ~/Download/cmake-3.4.1 $       sudo make

       pi@raspberrypi ~/Download/cmake-3.4.1 $       sudo make install

Update & Upgrade

Its's a good idea to do this just in case new releases are published

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• In a terminal window, type the following commands:

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       pi@raspberrypi ~ $                                                    apt-get update

       pi@raspberrypi ~ $                                                    apt-get upgrade

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• For more information about Raspicam:     

       

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• Test the RaspiCam by typing the following command in the Terminal window:

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        raspistill -o cam.jpg