An endless-video recording digicam?
October 29, 2005 1:56 PM Subscribe
Does this device exist, and if not, how can I modify cheap consumer digicams to create it:
A cheap portable digicam that will endlessly record video to some kind of small memory buffer, say enough memory for 1 minute of video, such that I could leave it running for days on the off-chance of it recording something interesting, and when something interesting happened, I just press a "Stop Recording" button, and the last 60 seconds of video are sitting in memory.
posted by -harlequin- to technology (13 answers total)
Many obvious and useful applications exist for this, so I'm surprised this isn't a higher-profile feature. In my case, I'm looking to do a home-made version of the more expensive "black-box" systems you can get for aircraft or cars - a device that records endlessly, but in case of an accident, has the crucial time period leading up to the accident recorded.
I'm aiming to build something portable that will run off 2 to 4 AA batteries for several hours or more (ie, for a bicycle - no convenient car power supply). The video doesn't need to be good (15 fps, 320x200 would be sufficient, more would be better, but battery life is also important.
The digicam info I've looked at is either inspecific about how they operate, or requires a manual delete of old footage.
The term "constant recording" in refrence to security camera features either seems to be inspecific, or mean "record until the media runs out".
As to my DIY abilities, I am very limited on programming software or firmware, but fairly capable with a soldering iron and designing simple circuits to operate more complex devices. (But if it is a suffiicently quick matter of coding, I have dev friends I might be able to persuade to help out.)
Any ideas as to where I should start?
Surely there are some cheap-ass digicams that offer this out of the box?