Hardware photos: DSLR housing, equipped with RasPi, PowerBoard and PoE splitter

The DSLR is now mounted in a waterproof housing.

Together with Raspberry Pi, selfmade PowerBoard (see earlier posts), PoE splitter.

It runs now temporarily in my backyard.

Lets see whether it runs stable and also remains dry in rainy wheather.

Now a few photos...

install gphoto2 version 2.5.5 on raspberry pi

easiest way is to use the install script from:
https://github.com/gonzalo/gphoto2-updater/blob/master/gphoto2-updater.sh

#/bin/sh

# Gphoto2 2.5.5 compiler and installer script v0.3.1

#

# This script is specifically created for Raspbian http://www.raspbian.org

# and Raspberry Pi http://www.raspberrypi.org but should work over any 

# Debian-based distribution

# Created and mantained by Gonzalo Cao Cabeza de Vaca

# Please send any feedback or comments to gonzalo.cao(at)gmail.com

# Updated for gPhoto2 2.5.1.1 by Peter Hinson

# Updated for gPhoto2 2.5.2 by Dmitri Popov

# Updated for gphoto2 2.5.5 by Mihai Doarna

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

if [ "$(whoami)" != "root" ]; then

echo "Sorry, this script must be executed with sudo or as root"

exit 1

fi

echo 

echo "----------------"

echo "Updating sources"

echo "----------------"

echo

apt-get update

echo 

echo "--------------------------"

echo "Removing gphoto2 if exists"

echo "--------------------------"

echo

apt-get remove -y gphoto2

echo 

echo "-----------------------"

echo "Installing dependencies"

echo "-----------------------"

echo

apt-get install -y libltdl-dev libusb-dev libexif-dev libpopt-dev libudev-dev

echo 

echo "-------------------------"

echo "Creating temporary folder"

echo "-------------------------"

echo

mkdir gphoto2-temp-folder

cd gphoto2-temp-folder

echo "gphoto2-temp-folder created"

echo 

echo "-------------------------"

echo "Downloading libusb 1.0.17"

echo "-------------------------"

echo

if wget -q http://ftp.de.debian.org/debian/pool/main/libu/libusbx/libusbx_1.0.17.orig.tar.bz2

then

tar xjvf libusbx_1.0.17.orig.tar.bz2

cd libusbx-1.0.17/

else

echo "Unable to get libusbx_1.0.17"

echo "Cleaning and exiting..."

exit 1

fi

echo 

echo "--------------------------------------"

echo "Compiling and installing libusb 1.0.17"

echo "--------------------------------------"

./configure

make

make install

cd ..

echo 

echo "----------------------------"

echo "Downloading libgphoto2 2.5.5"

echo "----------------------------"

echo

if wget -q http://downloads.sourceforge.net/project/gphoto/libgphoto/2.5.5/libgphoto2-2.5.5.tar.bz2

then

tar xjf libgphoto2-2.5.5.tar.bz2

cd libgphoto2-2.5.5

else

echo "Unable to get libgphoto2-2.5.5"

echo "Cleaning and exiting..."

exit 1

fi

echo 

echo "-----------------------------------------"

echo "Compiling and installing libgphoto2 2.5.5"

echo "-----------------------------------------"

echo

./configure

make

make install

cd ..

echo 

echo "-------------------------"

echo "Downloading gphoto2 2.5.5"

echo "-------------------------"

echo

if wget -q http://downloads.sourceforge.net/project/gphoto/gphoto/2.5.5/gphoto2-2.5.5.tar.gz

then

tar xzvf gphoto2-2.5.5.tar.gz

cd gphoto2-2.5.5

else

echo "Unable to get gphoto2-2.5.5"

echo "Cleaning and exiting..."

exit 1

fi

echo 

echo "--------------------------------"

echo "Compiling and installing gphoto2"

echo "--------------------------------" 

echo

./configure

make

make install

cd ..

echo 

echo "-----------------"

echo "Linking libraries"

echo "-----------------"  

echo

ldconfig

echo

echo "-----------------------------------------------------------------------------------------------"

echo "Setting up permissions for USB ports, see http://www.gphoto.org/doc/manual/permissions-usb.html"

echo "-----------------------------------------------------------------------------------------------"

echo

/usr/local/lib/libgphoto2/print-camera-list udev-rules version 0.98 group plugdev mode 0660 > /etc/udev/rules.d/90-libgphoto2.rules

echo 

echo "-------------------"

echo "Removing temp files"

echo "-------------------"

echo

cd ..

rm -r gphoto2-temp-folder

echo 

echo "--------------------"

echo "Finished!! Enjoy it!"

echo "--------------------"

echo

gphoto2 --version

script improvements: correct naming for captured images

for the webcam gallery the images shall be tagged with a naming convetion like hhmm_xx.jpg
xx varinats are:
hu = huge (original size, for klick&zoom-view in gallery)
la = large (smaller size, for direct view in gallery)
sm = small (small size, for thumbnail view in gallery)

And the photos shall be captured each 10 minutes.
The images shall have straight minute format.

And last but not least the images shall be placed in a directory-structure like /year/month/day/

Example: the image has been shot at 15:36h. DSCF2345.jpg was downloaded form the cam, and renamed by gphoto2 to webcam.jpg.
Then by imagemagick-command 'convert' the following images will be created:
1500_hu.jpg (original)
1500_la.jpg (reduced size 50% from original)
1500_sm.jpg (reduced size 20% from original)
All 3 photos will be uploaded by FTP in the correct folder.
The date-meta-data of the original photo 'webcam.jpg' has been taken into account to create the correct directory, and place the photos correctly.

The whole shell-script with the actual improvements:


#!/bin/bash

host='HOSTNAME'
USER='USERNAME'
PASS='PASSWORD'

rm *.jpg

while true
do
/usr/bin/gphoto2 --capture-image-and-download --filename "webcam.jpg"

imgname="webcam.jpg"
year=`date --reference $imgname +%Y`
month=`date --reference $imgname +%m`
day=`date --reference $imgname +%d`
hour=`date --reference $imgname +%H`
minute=`date --reference $imgname +%M`
mom=`date --reference $imgname +%H`
min=`date --reference $imgname +%M`

# show only full 10min
let min=$min/10*10
[ "$min" = "0" ] && min="00"
mom="${mom}$min"

mv $imgname $mom"_hu".jpg
convert $mom"_hu".jpg -resize 20% $mom"_sm".jpg
convert $mom"_hu".jpg -resize 50% $mom"_la".jpg

ftp -n -v $host <<EOT
ascii
user $USER $PASS
prompt
mkdir /webcamgallerydir/$year
mkdir /webcamgallerydir/$year/$month
mkdir /webcamgallerydir/$year/$month/$day
cd /webcamgallerydir/$year/$month/$day
put $mom"_hu".jpg
put $mom"_la".jpg
put $mom"_sm".jpg
bye
EOT
rm *.jpg
echo wait 10 minutes
sleep 600
done

download file from a server using ssh

A file can be downloaded from a server remotely by using the 'scp'-command as followed:

scp username@remotehost.tld:/remotedirectory/remotefile.txt /localdirectory

Example:
> scp bart@simpson.dyndns.com:/home/homer/marge.jpg /home/bart



open ssh connection on different port

ssh connections normally get opened on port 22.
In some cases the ssh port has been changed.
To get access from by shell command on different port, use -p and the port number.

Example:

> ssh 192.168.1.150 -p 2323