making a sensor with arduino board

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and wanted know how interface software in windows xp pro
most of time make dll using c++ , use api calls,thinking of using i2c usb converter,program using robot lispworks,i have processing software

you'll need write sketch code run on arduino , communicate using serial port (the usb arduinos have usb-to-serial chip on them).  that mean defining serial data protocol agreed between pc side , arduino side of code.  the arduino can deal low-level hardware interface tasks , pc can high-level tasks.


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