Re: cmos camera with a pic



On Sun, 23 Jul 2006 09:44:10 +0100 (BST),
paul$@pcserviceselectronics.co.uk (Paul Carpenter) wrote:

On Saturday, in article
<73c5c21m33a913i5ttqkqd4pv8er18vucu@xxxxxxx>
speffSNIP@xxxxxxxxxxxxxxxxxxxxxxx "Spehro Pefhany" wrote:

On 22 Jul 2006 10:41:02 -0700, the renowned "peres"
<beto.barba@xxxxxxxxx> wrote:

Hi, i need only to store a picture when an event happens, i want to do
it with a pic16f876A, i dont need to do any kind of image processing i
think, just take a picture and store it into a flash, so my question is
what cmos camera do you recomend for this?

thank you in advance

That's a bit high bandwidth (say 4MHz for pretty good resolution) for
a 5MIPS (max) PIC to sit between the camera and an external flash. If
you sampled one pixel per line per frame, it would be very slow (5 or
10 seconds to capture a frame). You probably need something around an
order of magnitude faster to capture an entire (relatively)
high-resolution image in real time.

The best he could do with that PIC is trigger a Digital Camera that has
its own Flash storage.
Especially the older models that have a serial interface might be
interesting. It should be possible to find them second hand.
Resolution is usually limited though on older models. The Nikon
Coolpix ones might be the exception.

Have a look here:
http://photopc.sourceforge.net/
.



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