Custom message out of ros to windows?

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I'm building a system using robot_localization, imu, gps nodes on an mbed (Beaglebone Black). The hope is to be able to send ekf filtered latitude, longitude, elevation, pitch, yaw, and roll messages out to a windows-based(Win7) sdk that requires this information to add to a dynamic photo stream (Ladybug3).

Assuming that I can get a serial connection from the laptop, can I use rosserial to attempt this? Or is there another package that I should be using?

Thanks for any insight,

B2256