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CMOS camera chip + microcontroller = Home made camera

Discussion in 'Hobby Electronics' started by Hugo Muccho, Aug 23, 2005.

  1. Hugo Muccho

    Hugo Muccho Guest

    I am studying digital electronics and I need to build a low-resolution
    camera unit which can transmit the captured frame over an RS232 comm
    channel.
    I will use a CMOS camera chip and a low cost microcontroller (ATMega or PIC)
    because of limited student budget.

    Can you tell me if you can see any design tricks/pitfall on this project
    that I need to be aware of?

    Where can I order a low-res CMOS camera chip in Australia?

    Hugo
     
  2. Padu

    Padu Guest

    Do you have to make one or use one? If the second apply, then take a look at
    the CMUCam, they have exactly what you described for an excellent price
    (less than $100 if I'm not mistaken).
     
  3. jro

    jro Guest

    I am studying digital electronics and I need to build a low-resolution
    Hi Dave,
    I developed the AVRcam last year that fits this exact specification:
    CMOS image sensor mated to an Atmel mega8 microcontroller. It is
    capable of tracking up to 8 objects of 8 different user-defined colors
    at 30 frames/sec. It can also spit out a complete color image over a
    serial port. Check out:

    http://www.jrobot.net

    for more details. There is also a forums section there that discusses
    what people are doing with the system, and what issues arise with such
    as system.

    Feel free to post any questions you have over at that forum (or here,
    though I check this less frequently). Embedded image processing is
    certainly a fascinating topic (especially when you're trying to do it
    on an 8-bit micro), and it will provide a fun and exciting challenge to
    you.

    Good luck,

    John Orlando
    www.jrobot.net
     
  4. jro

    jro Guest

    An optical mouse may be usable for some rudimentary vision tasks, but I
    have no idea how it would actually work for capturing full-color images
    that could then be processed. The 88 x 144 is due to the fact that the
    OV6620 provides a 176 x 144 output format, and then I am decimating the
    data in each row so there is less to process.

    John
     
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