First of all, a very happy New Year!

Right, now that we’re done with the niceties, moving on to the update, I have now managed to capture pictures from the camera through the USB cable on the beagleboard and transfer the images to my computer using a script running on the beagleboard. I use the gphoto2 command line interface and a simple hook script which rsync’s with a folder on my computer over the network. To avoid the password hassles I created a public key on the beagle and added it to the authorized_keys file in ~/.ssh/ (Of course there aren’t any security issues – Only I use the beagleboard)

However, the delay between consecutive pictures is quite significant (I timed it to ~3.6 seconds between snaps) and it is to be seen whether it would be adequate or not. (I feel that it won’t) I tried setting the mode to fixed aperture, landscape modes, etc. so that it doesn’t waste precious seconds on autofocussing, but no dice. Changing image resolution also didn’t help. So the only alternative seems to take pictures in burst mode and then transferring them. The trigger will have to be done via video(?), and there will be a massive delay between consecutive burst pics. The low resolution for such pictures isn’t too good a thing either. Another mode that the camera supports is a 5 second continuous shot buffer, but it is still to be seen if I can access the buffer on the fly (It seems unlikely though)

So, as matters  stand, unless a DSLR is used, it’s going to be tough trying to get high resolution snaps at short time intervals. Sad, but anyway, let’s save the verdict for the flight test.

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