Keeping up with the serial port is not problematic in terms of speed. It sends the data at 19200 baud with about 5 readings per second. The readings actually come from military communications device that has a military grade GPS built in. That device was designed to use the MGRS system. Now the user interface on a coiled cord mounted remote operator console wants to have a new version that provides operator interface in another coordinate system. That coordinate system is one if those that treats the earth as a 3D ellipsoid shape. The user needs to see the GPS info in the new format on the control panel and to be able to enter way points via the new coordinate format. The controller unit micrccontroller needs to convert these each way into the MGRS format for transmit to/from the GPS unit which will forever remain working in the MGRS format.

Michael Karas