Streaming video with PropCam and XBee WiFi?

banjo

I'm in another thread (http://forums.parallax.com/showthread.php/153072-XBee-Wifi-amp-Propeller-Activity-Board-how-to-connect?p=1234690&viewfull=1#post1234690) tinkering with iPad and XBee WiFi on a Propeller Activity Board.
Would be possible to stream video from PropCam on a PAB through the XBee WiFi to e.g. a PC or iPad? Any guesses on the FPS?

-Thomas

SRLM

Interesting question. I'd like to know the answer as well. In particular, it would be cool to stream via the Digi XTend modules. If you can, that's probably one of the longest range video feeds out there that doesn't involve a network.

In the meantime, I'll attempt an answer. According to the PropCAM product page each image takes 6144 bytes. That's 49152 bits per frame. Let's double that to account for overhead (stop bits, error correction, slower than advertised connection, etc.) So each image takes 98304 bits. For a list of standard baud rates:

BPS     s/frame f/s
4800    20.48   0.05
9600    10.24   0.10
19200   5.12    0.20
57600   1.71    0.59
115200  0.85    1.17
460800  0.21    4.69

Phil Pilgrim (PhiPi)

Thanks, Cody! I like the way you answered that. Somehow I missed the XBee WiFi thread. 'Lots going on there that I need to look into!

-Phil

banjo

Yep, thanks Cody, this helps to give realistic expectations!

-Thomas