Not a workable solution, so I’ll have to look into that.
After a few requests to the camera, the gphoto app responds with “Unknown Error”, and the only solution seems to be to unplug the usb cable and re-insert it. There’s a significant problem with the current USB drivers on the Raspbian linux disribution, though. I can pull images from the camera and transmit them via either Wifi or ethernet. There’s plenty of work to be done on the software side of things but the prototype is working. Trigger camera via shutter release port, also allows waking up of sleeping camera, which cant be done via USB.Add a small LCD display to give status, allow user input via buttons, etc.On-the-fly image conversion for faster previews on remote display device (iPad, etc).Intervalometer – take a picture every few seconds for those high-speed sunset sequences, including exposure adjustment as you go.Remote control the camera using a PC, tablet PC or smartphone (from anywhere in the world).Attach a USB memory key or hard drive so I can back up the images on the camera.Wireless tethered shooting – attach a Wifi dongle to the USB port, so I can transmit pictures to a PC or tablet PC as I’m shooting.it’s a fully functioning computer with a Linux Operating System (Raspbian), has 2 USB, network, video, HDMI and GPIO.
I left a few holes in the case so that I could get at the USB and network ports, and video port. So what I’ve done is take an old (broken) battery grip that I had lying around (for my Canon 5D Mark II), and made a few modifications to it so I could fit the Raspberry Pi SBC (Single Board Computer) into it.
At €35 for the computer, it’s far cheaper than any of it’s rivals. With the release of the Raspberry Pi, embedded computing has all of a sudden become much more affordable. I’ve had the idea of embedding a computer DSLR camera for a couple of years now, but for whatever reason I never got around to implementing it, mostly due to the cost of small single board computers.
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