kindly,i have a usb cam and arduino mega2560 , anyway to connect them ? can i use usb-to-serial adapter and connect them through arduino communcation port ? i need your advise ...pls
This question gets asked at least once a week, if not more. Please use the search function of this website and also Google to find out what other people have done for this sort of thing. The first thing you'll find out is that the arduino platform is not ideal for video capture or processing. This is much better performed by some sort of computer, possibly a rapsberry pi. If you want servos to move your camera the arduino would work great for that.
No you can't. The closest I've seen is an Arduino clone with integrated 3G modem and video which can be used to send a video stream over the 3G network. But, since the Arduino can't do anything with the video itself, you might just as well connect the video stream directly to wherever it's being used - via USB, WiFi, Ethernet etc. Just because the camera is sat next to an Arduino, doesn't mean the video has to come through the Arduino.
Can the Due handle the load? Not that the Pi wouldn't be better for more reasons than just speed.