I would like to remote control a still camera via
After consulting a list of supported cameras I bought (used) Canon A620
from Allegro (local Internet auction site, sort of E-bay).
This camera has many great features (I suspect even too great as Canon stop producing cheap cameras of this sort):
viewfinder, retractable LCD and can be powered with Compact Power Adapter CA-PS500 instead of batteries
(an important feature in my project).
The plan was simple: connect camera via USB cable to computer and power it with PSU. Capture photos periodically with
gphoto2 --auto-detect pi@raspberrystar ~/bin $ gphoto2 --auto-detect Model Port ---------------------------------------------------------- Canon PowerShot A620 (PTP mode) usb:001,006
So far, so good.
Now, I tried to capture a photo:
# one shot without flash, download the file and store in a file named as: GPHyyyymmddhhmm.jpg LANG=C gphoto2 --set-config flashmode=0 --capture-image-and-download --filename "GPH%Y%m%d%H%M.jpg"
As the creation time is wrong (due to camera wrong clock) I modified
the above as follows (note that
touch is used to adjust file's timestamp):
#!/bin/basg FILENAME="GPH`date +"%Y%m%d%H%M"`.jpg" LANG=C gphoto2 --set-config flashmode=0 --capture-image-and-download --filename "$FILENAME" touch "$FILENAME"
Unfortunately there are problems: I am able to remotely capture only one photo. Next remote capture try results in an error and the camera has to be hard reset (with power on/off button). The problem is reported by others too.
BTW: when I connected the camera to my PC the reliability is much better (but seems not perfect---I experienced camera disconnection too.)
My first try to resolve the problems was to update
(raspbian contains version 2.4.14 of
## optionally remove old version (there are no dependencies) apt-get remove gphoto2
There is no need to remove
gphoto2 as compiled one
will be installed in another directory (
First install/compile the necessary packages:
apt-get install -y libltdl-dev libusb-dev libexif-dev libpopt-dev ## Download and install newer version of libusb 1.0.11 wget http://ftp.de.debian.org/debian/pool/main/libu/libusbx/libusbx_1.0.11.orig.tar.bz2 tar xjvf libusbx_1.0.11.orig.tar.bz2 cd libusbx-1.0.11/ ./configure && make && sudo make install ## Download and install newer version of libgphoto wget http://garr.dl.sourceforge.net/project/gphoto/libgphoto/188.8.131.52/libgphoto2-184.108.40.206.tar.bz2 tar xjf libgphoto2-2.5.0.tar.bz2 cd libgphoto2-220.127.116.11 ./configure && make && sudo make install
Download and install newer version of gphoto2
wget http://downloads.sourceforge.net/project/gphoto/gphoto/2.5.1/gphoto2-2.5.1.tar.gz tar xzvf gphoto2-2.5.1.tar.gz cd gphoto2-2.5.1 ./configure && make && sudo make install ## run ldconfig sudo ldconfig gphoto2 --version gphoto2 2.5.1 Copyright (c) 2000-2013 Lutz Mueller i inni
gphoto2 on my fedora 14 box requires
#configure: error: cannot compile and link against libltdl #libgphoto2 requires libltdl (the libtool dl* library), #but cannot compile and link against it. yum -y install libtool-ltdl-devel popt-devel
Upon installing above two packages, the compilation of
Unfortunately installing new version of
gphoto2 did not help.
The problem will be further examined...