Camera Module output data format

Hi.

I am interested in using a device similar to the OV7670. I am only taking small images (15mm x 10mm) of text so the resolution does not have to be great. I will initially be using an 8-bit MCU which do not have enough RAM to store an image. I would like to request each byte at a time from the device which I can then send to my pc.

My question is: Is it possible to request one byte at a time (or small blocks) from the OV7670. The online documentation only refers to frames, which are too big for my MCU to process.

Thanks,

Mark.

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Former Member over 9 years ago in reply to balearicdynamics

I know that a 32 bit MCU or extra memory would be more suitable for storing the data but I will be just firing it straight into the pc so will not be stored in the MCU anyway. I will also be using a low data rate as I only need to photo 4-5 characters in the image, I will then run some software in the pc to recognise them. I wanted to know if it is possible to send it to the pc via UART while it is coming in in I2C and it seems to be true. The referenced code is quiet detailed and a bit fancy for what I need. If I can read in a certain amount of data and push it out before reading the next chunk that will suffice. I know its probably not the done thing but everybody loves a challenge. Thanks for the comments folks.
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balearicdynamics over 9 years ago in reply to Former Member

Sure you can connect the pc via UART / USB, depending on the kind of connection you have on pc-side.

Enrico
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Former Member over 9 years ago in reply to balearicdynamics

Excellent
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