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DaveAtDigital
Jul 15, 2009, 07:36 PM
Hello,

I’m curious if anyone here has experience with connecting multiple digital sensors using the Xbee or other RF modems.

Is there a known way to multiplex 3 serial devices over a single RF modem?

-Dave

chopsuey
Jul 16, 2009, 12:07 AM
Well my first instinct would be to connect the sensors to a microcontroller that would read the data from each sensor. Then using a protocol of some sort, maybe something you created yourself, send the data over the XBee. This may very well be overkill though.

BeefStake
Jul 16, 2009, 04:51 AM
You could probably use something like this on the end of a Xbee or other serial modem: http://www.acroname.com/robotics/info/ideas/sermux/sermux.html

DaveAtDigital
Jul 17, 2009, 05:46 PM
Thanks for the reply. I was even thinking something like this: http://www.sparkfun.com/commerce/product_info.php?products_id=9056

but i'm not sure if it was designed for this use.

BeefStake
Jul 17, 2009, 09:01 PM
Yep that would work fine too.