What is the difference between the 3 versions of NXTCam?

[jojoguy10]

I don't really see any difference, but if somebody can tell me ANY difference at all (except of course the look of them), that would be great!
jojoguy10 -
http://www.lego-x.blogspot.com

[support]

Primarily, NXTCam-v3 will support change of Tracking algorithms (AVR code) using USB.
In this model you will be able to write your own code to do different kind of recognition, such as shape recognition, circle recognition, edge detection, laser detection, bar-code recognition, QR Code recognition, etc. (possibilities are limitless). The tracking engine runs on AVR processor, it will require you to write C programs for AVR processor, and you will be able to re-flash the AVR processor via USB. Tools to use will be: WinAVR and AVR Studio. There already is an open source development project initiated for different tracking algorithms.
It will also support a generic I/O model for data exchange with NXT.
And it is fully compatible with NXTCam-v2.

[robokalle]

Hello,

can i update the old NXTCam "V1.0" firmware to the 3 version

robokalle

[support]

No, you can not update firmwares in NXTCam-v1 or v2 to version 3.
The NXTCam-v3 has ability to update the AVR firmware through USB interface, where as older models require AVR programmer hardware to update the firmware.
Similarly NXTCam-v3 has ability to update the PIC firmware using NXT, which is not there in older models (requiring PIC programmer hardware to do so).