Monday, February 27, 2012

A note about xbee serial communication accuracy

I found a neat fact about the xbee communication modules. Having too high a send rate can botch the accuracy of your transmission (although you should test it yourself, may be just the way my software works). I had two xbees transmitting strings at 57600 baud and quite a bit of noise was present. Turning it down to 4800 resulted in perfect transmission. This is a bit slow, but I will be determining the max transmission rate that doesn't give me noise.

Well my project is delayed a bit because I was impatient and did not test my controller thoroughly enough before hooking everything together. So after a few sparks most of my motor controllers are down (although it did work for a little before the accident). Hopefully I can just replace the hbridge transistors and everything will be good to go.

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