Interfacing a USB GPS with an Arduino

Now that ERP1 is up and running, it needs to be able to fix its position and report this back over the wireless data link. I plan to develop a simple Kalman filter to estimate ERP’s position, but to do this, I need two things…..

(a) An Action Parameter. This will be in the form of a motion vector. Direction will come from a digital compass and Magnitude from a  wheel mounted optical encoder.

(b) Data Update. This will the estimated position of ERP1 obtained from an external fixing system such as the popular Global Positioning System (GPS).

GPS Constellation. Source : Wikipedia

GPS Constellation. Source : Wikipedia

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