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camera interfacing

sonali badgujar
Prodigy 40 points
Other Parts Discussed in Thread: MSP430F6638

Hi,

    I want the camera sensor which can give the output in VGA format. Image data I want to capture. color information is not so important. At very low data rate I have to transmit it. I have searched for camera sensors which can give the digital data out, but their availability is not there. Agilents camera sensor can give the output in  digital format. No video data I want to process. Please tell me if it is possible to interface a camera module with MSP430F6638 microcontroller and if yes, which camera module I can use??

Thank You

  • 0
    Guru 46710 points

    Next time you are advised to post into existing thread instead of starting new one.

    sonali badgujar said:
    VGA format. Image data I want to capture. color information is not so important.

    You did not specify frame rate. VGA format means 640x480 pixels. If you use one byte per pixel, then you need  640x480 = 307200 bytes of memory. Note that your msp430 have just 16000 bytes.

    sonali badgujar said:
    I have searched for camera sensors which can give the digital data out, but their availability is not there

    For low-end microcontroller you definitely need camera with digital interface.

    sonali badgujar said:
    Please tell me if it is possible to interface a camera module with MSP430F6638 microcontroller

    It is barely possible - in case you accept small image resolution like 100x100 pixels with 8 bits per pixel color/greyscale depth.

  • 0 in reply to Ilmars
    Guru 27285 points

    Ilmars said:

    You did not specify frame rate. VGA format means 640x480 pixels. If you use one byte per pixel, then you need  640x480 = 307200 bytes of memory. Note that your msp430 have just 16000 bytes.

     Hi Ilmars, i suppose it was speaking about one frame captured then transmitted on some unspecified low speed way so internal memory is not of importance till camera retain frame buffer to slow transmit. A similar device was sold by sparkfun or other.. also on ebay can find something or same cheaper

    https://www.sparkfun.com/products/11610

    http://www.adafruit.com/product/397

    http://www.ebay.com/itm/OV7620-Camera-Module-Digital-Camera-for-Smart-car-Freescale-/130953316788

    http://www.ebay.com/itm/1-pcs-OV2640-2Mp-HD-CMOS-Camera-Module-w-Adapter-Board-JPEG-OUT-/281067291314?pt=LH_DefaultDomain_0&hash=item4170ea82b2

     Last one is the more hard to interface...

    Ilmars said:
    It is barely possible - in case you accept small image resolution like 100x100 pixels with 8 bits per pixel color/greyscale depth.

     I had to disagree this, single frame can be processed at full res too, just time to transmit increase and internal memory till external device freeze frame is not a problem too,

  • 0 in reply to Roberto Romano
    Guru 46710 points

    Roberto Romano said:
    one frame captured then transmitted on some unspecified low speed way so internal memory is not of importance till camera retain frame buffer to slow transmit

    If camera act as photo-camera, retain digital picture in buffer as long as needed - then yes, you are right and I was kind of antiquatedly thinking :)

    Thank you for clarifying

  • 0 in reply to Ilmars
    Guru 27285 points

    Ilmars said:

    If camera act as photo-camera, retain digital picture in buffer as long as needed - then yes, you are right and I was kind of antiquatedly thinking :)

    Thank you for clarifying

     Hi Ilmars, is not question of Amtiquate, I am learning how to read between lines... Maybe some day i can read next day lottery ;)

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