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'[PIC:] Cameras to use with a PIC.'
2004\01\31@133045 by Michael J. Pawlowsky

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Hello,

I want to build a project that will capture an image with a camera (CMOS or similar) and simply feed it to an RF modem.
I've seen something done with a Game Boy camera, but was wondering if anyone else has done something similar.

If so what camera did you use?

Or does anyone know of any similar projects on the net where I could find some schematics, code etc.?

I'm trying to keep this a simple and cheap as possible since the chance that the camera will be stolen are high.
It will be in a R/C flying field that is taken over by teenagers at night to party at!


Thanks,
Mike

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2004\01\31@135159 by Josh Koffman

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I can't offer specific advice on which camera to use. However, you may
wish to look to some older cameras that use a serial port for
interfacing. They would likely be easier to use than the USB interfaces.
In fact, I seem to remember stumbling across some sites that documented
the command structure for the interface. As an advantage, you should be
able to pick them up for cheap on clearance or eBay, etc.

Josh
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"Michael J. Pawlowsky" wrote:
> I want to build a project that will capture an image with a camera (CMOS or similar) and simply feed it to an RF modem.
> I've seen something done with a Game Boy camera, but was wondering if anyone else has done something similar.

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2004\01\31@144254 by Denny Esterline

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Agreed. I seem to remember a Circuit Cellar contest winner that used a pic
to interface a serial digital camera to a network card. Seems a good place
to start.

IIRC it was before the Renesas contest, so 1-1/2 - 2 years ago? A little
searching in their archive should be of help.

-Denny



{Quote hidden}

(CMOS or similar) and simply feed it to an RF modem.
> > I've seen something done with a Game Boy camera, but was wondering if
anyone else has done something similar.
>
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2004\01\31@144255 by Robert Rolf

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"Michael J. Pawlowsky" wrote:
> I want to build a project that will capture an image with a camera (CMOS or similar) and simply feed it to an RF modem.
> I've seen something done with a Game Boy camera, but was wondering if anyone else has done something similar.
>
> If so what camera did you use?
>
> Or does anyone know of any similar projects on the net where I could find some schematics, code etc.?
>
> I'm trying to keep this a simple and cheap as possible since the chance that the camera will be stolen are high.
> It will be in a R/C flying field that is taken over by teenagers at night to party at!

1) If you want to collect images "at night" you really should be looking at
CCD cameras. They have 10 times the sensitivity of the cheaper CMOS ones. You
can also illuminate the scene with IR LEDs to improve the images. Only turn
them on when you sense motion with PIR.

2) RF modems are not cheap. Depending on range requirement, you are probably
better off using a 'wireless' RF video link. The really good ones use FM
in the amateur radio bands ($150).
Many cheap security cameras (X10) come ready to go with transmitter and receiver @ 2.4GHz.
Check out Costco's  security camera systems.
Small do-it-yourself yagi antennas (as used by the NLN (neighborhood lan)
geeks can increase the range to kilometers.

3) You can use a simple PIC and simple circuitry to digitize the output
of a conventional cheap PCB security camera ($60C). Look for "slow scan"+digitize+video
for dozens of circuits. Basically you take one sample per scan line using
a fast sample and hold, with the sample point moving along the scan line over
time (seconds). The PIC A/D can easily handle the 64usec/sample available.
Typical PIC A/D is 20usec/sample so you can get 2 samples per scan line (50usec of video).

Radio amateurs were doing slow scan TV (analog, 15 sec/frame) back in the 70's.
Today it's dead easy with an A/D capable PIC and a sync sep (LM1881) + S&H op amp.
If you wiretap the camera to get HD/VD (horizontal/vertical drive)
them you don't even need the sync separator.

4) mount the camera high up on a pole so that stealing it is more difficult.
Solar cell to charge the battery, and height to get range.
Around here, used oil drill stem is $1.50/ft. A 5' deep hole takes a few
dozen minutes with an auger, and readimix bagged concrete is $5.00/bag.

5) Use a cheap PIR (passive infra-red) motion sensor, and just transmit
an 'alarm' signal so you can send in the police to catch the trespassers
in the act. I assume your jurisdiction (Montreal?) has a 'petty trespass act'
whereby simply posting notices prohibiting trespass is sufficient
grounds for arresting those in violation of the notices.

Have fun.

Robert

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2004\01\31@145047 by D. Jay Newman

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> Hello,
>
> I want to build a project that will capture an image with a camera (CMOS or similar) and simply feed it to an RF modem.
> I've seen something done with a Game Boy camera, but was wondering if anyone else has done something similar.

I'm working designing a camera-head using four optical mouse imagers and
a PIC 18F242. This doesn't have a lot of resolution, but it produces
data that is easier for a computer to deal with.

> If so what camera did you use?

I do have a CMUCam (available from Acroname among other sources).

> Or does anyone know of any similar projects on the net where I could find some schematics, code etc.?
>
> I'm trying to keep this a simple and cheap as possible since the chance that the camera will be stolen are high.
> It will be in a R/C flying field that is taken over by teenagers at night to party at!

A spy-cam, eh.
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2004\01\31@150540 by Dave Tweed

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Denny Esterline <KILLspamfirmwareKILLspamspamTDS.NET> wrote:
> Agreed. I seem to remember a Circuit Cellar contest winner that used a pic
> to interface a serial digital camera to a network card. Seems a good place
> to start.
>
> IIRC it was before the Renesas contest, so 1-1/2 - 2 years ago? A little
> searching in their archive should be of help.

Most of the recent contests are summarized under my index page for our
editor, Jennifer Huber:
  http://www.dtweed.com/circuitcellar/xhuberje.htm

-- Dave Tweed

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2004\01\31@161508 by ?q?Debbie=20Hynes?=

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--- "Michael J. Pawlowsky" <spamBeGonemikejpspamBeGonespamVIDEOTRON.CA> wrote: > Hello,
>
> I want to build a project that will capture an image with a camera (CMOS or
> similar) and simply feed it to an RF modem.
> I've seen something done with a Game Boy camera, but was wondering if anyone
> else has done something similar.
>
> If so what camera did you use?
>
> Or does anyone know of any similar projects on the net where I could find
> some schematics, code etc.?
>
> I'm trying to keep this a simple and cheap as possible since the chance that
> the camera will be stolen are high.
> It will be in a R/C flying field that is taken over by teenagers at night to
> party at!
>
>
> Thanks,
> Mike
>
hi Mike
i used a Kodak DC50 with a 16F84 - hadda lotta help from guys on the piclist re
command structure. it's cheap & uses rs232 but it's rather bulky & pulls a
lotta current when processing an image so that might be a prob in a r/c plane?
it has a hir-res mode that captures an image a bit less than 1Mpx. the other
way would be 2 use ir serial protocol but it's only mid -> hi level cams have
ir control. so cost is a prob there - however, it's one i'm working on at the
mo'. i haven't put any of this stuff on my web page but if u like i could send
u the DCXX command data, schematics & stuff off list?

my email -
Debbie Hynes,  TakeThisOuTdebbiehynes2002EraseMEspamspam_OUTyahoo.com.au

Debbie :)

http://greetings.yahoo.com.au - Yahoo! Greetings
Send your love online with Yahoo! Greetings - FREE!

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> I didn't say these PICs *are* sharing the same ID!

OK, and there was the point where I messed up !! :-)
Kind of mixed up things with Wouters other chips with
the same ID...

Oh well...


> I'm afraid I'm not a good teacher,

Oh yes !

> but I'll try (to be patient) ;-)

And I've learned my lesson and will keep silent now...

Jan-Erik.

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2004\01\31@163205 by Michael J. Pawlowsky

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I was wondering how come a message came into my Feb folder already. I sort the PICList by Topic and month.
the .au explains it!

Yes that would be amazing if you could send it to me. I would really appreciate it.

This is not for my planes, (or to catch trespassers). I have several cams (still and video) but use a 2.4Ghz TX in my planes.
No Hassles there since it only goes to a capture card, video glasses, or Vid cam for recording.

This is to have a WebCam at the field.
We already send weather data form the field to someones home every 5 minutes which gets uploaded to the Net..

I was thinking between weather update, it would be cool to have a photo of the field as well. This way you know if anyone is out there or not.

If you want to see the weather station description it's at:
http://www.wimac.org/wx/about.php

Thanks for the offer Debbie. I really appreciate it!






*********** REPLY SEPARATOR  ***********
>the
>mo'. i haven't put any of this stuff on my web page but if u like i could
>send
>u the DCXX command data, schematics & stuff off list?
>
>my email -
>Debbie Hynes,  RemoveMEdebbiehynes2002EraseMEspamspam_OUTyahoo.com.au

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{Quote hidden}

Why not? For instance I can easily see Health and/or enjoyment of life
being seen as a human resource in the sense of 3). Where would you put
things that are totally accepted in the economy and often appear on
balances like goodwill, Intellectual Property, image, brand loyality?

Wouter van Ooijen

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'[PIC:] Cameras to use with a PIC.'
2004\02\02@164725 by Rafael Vidal Aroca
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   If you don't mind using an old parallel port webcam, you can get it
running with this circuit:

   http://binky.seas.upenn.edu/~jorj/techno/bikepicdex.shtml

   I'ts an interesting project. "Jorg" connected a parallel quickcam, a
gps and a cell phone to a pic. While he travels with his bike people can
see on-line images from the camera, and hist position.

   Perhaps this may be a good start.

[]s Rafael.




Michael J. Pawlowsky wrote:

{Quote hidden}

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