Shop OBEX P1 Docs P2 Docs Learn Events
USB Web Cam on Propeller (or serial?) — Parallax Forums

USB Web Cam on Propeller (or serial?)

TaerzikTaerzik Posts: 6
in Propeller 1
I'm aware that this has been addressed before but I'm asking for a fresh hashing out of the subject.

I need to get 30 frames per second from a camera to a propeller 1 chip.
I do not require a particularly large image or high resolution.

What does the community recommend as a best 'route' to achieve that goal?
What further information do I need to supply to flesh out the inquiry?

Comments

  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    If you don't need color:

    https://www.parallax.com/product/28320

    -Phil
  • TaerzikTaerzik Posts: 6
    That's a decent solution to keep in mind. Thanks Phil!
    As it happens, my project can do without color initially but I'm sure it will need color eventually.
  • msrobotsmsrobots Posts: 3,709
    USB will not work with Propeller for a camera. Propeller is a USB slave, not a host.

    I got some serial camera module but this is nowhere near 30 fps.

    Can you describe your goal a little more?

    Enjoy!

    Mike
  • TaerzikTaerzik Posts: 6
    Hi Mike,

    My objective is 30 fps, color (eventually), small image size acceptable.
    Post reading, line detection and memory output.
    All that can be handled by a separate Propeller(s) as needed.
    Even if the work load is too much for one Propeller to handle, I can divide it up if that is a reasonable solution.

    Right now it's looking like my two options are:

    1. Serial camera to Propeller.
    2. USB camera to intermediary host chip, then to Propeller.

    Does that sound about right?


  • Duane DegnDuane Degn Posts: 10,588
    I have a "Propeller friendly" machine vision list of links in this post.

    Here's a photo of one of my experiments using Hanno's machine vision technique.

    79866.jpg

    There's a camera in the top right of the photo. Can you see the "HI" displayed on the LEDs?

    For a color image, I think the CMUcam4 and the Grand Idea Laser Range Finder are likely the easiest approaches.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2015-12-26 04:53
    The first color images from the moon were made with a black and white camera using three color filters. You could use one of the black and white methods and either use three cameras or use a single camera with a rotating filter (I seem to recall Phil trying the rotating filter trick once).
Sign In or Register to comment.